问:
Adjusting microphone gain on a tablet
I've recently bought an onda tablet v919 3g air dual os windows 10 + android 4.4. I can call someone only from android because windows cant access the modem only for data. The only problem is that somewhere in the software the microphone's gain is set on max and when I initiate a phone call there is a very high background noise.

I've rooted the tablet and I now have access to all its files, but I cant find the place where I should change the code so I could get rid of "boot_autogain". Considering that I'm quite a newbie in apache I believe that I should modify the audio policy file, but I don't know where. From my research the files are the same as the ones from asus zenfone, with the only difference that onda putted on mic {custom configuration.

My question now is the gain is applied before HAL or after the mixing is done? Or where and how can I change the gain values?

And also, I know for sure that it's not a hardware problem considering that in windows I don't have this problem and I can modify the microphone's level and it works just fine with skype, messenger, recording...

Title: Adjusting microphone gain on a tablet


问:
Another way for debugging web sites/apps using Android
Nowadays I miss my laptop I have only my Note 10.1 Android Running 4.4.2 ... is there any way to view web page source or open console or that developer options that we do using our normal laptop ?</p>

ContentLicense: CC BY-SA 3.0


问:
I can't boot to recovery mode in zenfone2
I manage to get into boot loader.

https://www.youtube.com/watch?v=wuixmZ11Kyc

However, after that, if I select recovery mode and click power button it goes to bootloader again.

The problem is I have CWM installed. And then I Install TWRM again. So it seems that I have 2 recovery modes even though I need only one. I wonder how to solve that.

I can finally go to CWM but only if I reinstall CWM and only for 1 time


问:
What does stop somebody from flashing a custom recovery and pulling all user data?
For example, I was able to install a Clockworkmod recovery on my Samsung Galaxy Ace 3 phone via Odin and back up all the data in a few clicks.

But if I could do it, what would stop somebody else who could gain access to my phone to do the same and perform a full backup on SD card? Isn't this supposed to be hard to do?

Is encryption the only way to protect private user data?


问:
Is there any way to turn off shutter sound of camera in Android Marshmallow?
I am using Motorola G3. After upgrading to Android Marshmallow I am not able to turn off camera's shutter sound. I searched and found it is the bug of android 6. Is there any way to turn of shutter sound of camera?</p>


问:
Mirror OS X sound on Android without WiFi?
The audio jack hole on my Mac is broken.

My Android phone's hotspot is my Internet connection, and I don't have any other WiFi. Is there any way I can have the phone mirror the sound of my Mac?

I have already tried Bluetooth,  but I use several other Bluetooth devices at the same time,  and the Bluetooth sound gets a significant delay after some time. I work with creating subtitles for movies, and therefore that time delay is unacceptable to me.

Please note that many of the apps that do this require a WiFi hosted by a third device (router.) I don't have that, and need to do it without it.

I know this is technically doable,  because when I host a hotspot and connect the Mac to it, an app called AirDroid works fine (without using any cellular data) with a transfer speed of 5 megabytes per second. I'm looking for exactly that kind of connection being used to mirror the Mac audio on the phone.

I would even be interested in doing it with a USB cable. I'm interested in minimal delay and fair sound quality.

The phone is a Samsung I9305 running rooted stock 4.4.4 with Xposed Framework installed.

The Mac is running OS X 10.10.1.

I would prefer not having to buy any new hardware.


问:
At fastboot, fastboot can connect to computer but adb cannot
The other way around happens when I reinstall cwm (yes I can reinstall cwm run fastboot, adb simply doesn't know it exist). When I do cwm

```<code>c:\Users\jim2\Downloads>adb reboot
</code>```

See adb reboot works when I am on cwm. Adb recoqnize the device. After that?

```<code>c:\Users\jim2\Downloads>adb devices
List of devices attached

c:\Users\jim2\Downloads>adb devices
List of devices attached
</code>```

no devices.

```<code>c:\Users\jim2\Downloads>fastboot flash recovery twrp-3.0.0-0-Z00A.img
target reported max download size of 536870912 bytes
sending 'recovery' (15674 KB)...
OKAY [  0.780s]
writing 'recovery'...
OKAY [  0.876s]
finished. total time: 1.657s
</code>```

Works just fine. Of course it's catch 2 2 because I want to do adb reboot recovery after that but cannot


问:
Devices disconnect from CWM when trying to sideload
```<code>c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device

c:\Users\jim2\Downloads>adb sideload UL-Z00A-WW-2.20.40.165-user.zip
loading: 'UL-Z00A-WW-2.20.40.165-user.zip'
error: device '(null)' not found

c:\Users\jim2\Downloads>adb devices
List of devices attached
</code>```

I will try again and see if devices are there when I select sideload from cwm

I did it again.

```<code>Now the message is error: closed

**c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device

c:\Users\jim2\Downloads>adb sideload UL-Z00A-WW-2.20.40.165-user.zip
loading: 'UL-Z00A-WW-2.20.40.165-user.zip'
error: closed

c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device

c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device

c:\Users\jim2\Downloads>adb sideload UL-Z00A-WW-2.20.40.165-user.zip
loading: 'UL-Z00A-WW-2.20.40.165-user.zip'
error: closed

c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device

c:\Users\jim2\Downloads>adb sideload UL-Z00A-WW-2.20.40.165-user.zip
loading: 'UL-Z00A-WW-2.20.40.165-user.zip'
error: closed

c:\Users\jim2\Downloads>adb devices
List of devices attached
F5AZFG27S553    device
</code>```


问:
How to sync notifications between two android devices?
I have two android devices, but I usually use only one at a time. I want to see the other device notifications without using any computer or web app.

I can use AirDroid to see notifications, but only in web or desktop app. I can log in the web app using Chrome Browser for Android, but I don't receive any notification. I only can see notificacions in the other device if I check manually the Airdroid web page.

I can use also Pushbullet to see notifications, but only with browser extension (I  only checked with Chrome one but I imagine it's also working with the other browsers). As I cannot install the browser extension in Chrome Browser for Android, this option is not valid to use within a smartphone.

Pushbullet offered in a previous version a beta feature to sync notifications between devices, but this feature has been dismissed.

Then, there is an option to be aware of notifications of one Android device from other one?


问:
Stock contacts app shows a default "other" address
I've added a street address for one of my contacts in the stock Marshmallow contacts app.

However, the address only shows up as the second address, only visible if I tap "see all" at the bottom of the contacts details.

By default, the app shows a dummy address with just the country code (Australia in my case) and nothing else. The image below explains the problem better than words:

How do I get rid of that address? I don't see it among the editable fields when I modify the contact, so I don't know where it's coming from.


问:
HTC One M8 - Do Not Disturb still plays sounds in Videos and Music. Any total sounds off option?
Do Not Disturb>On

Message displayed:

This turns off all sounds and vibrations, including from alarms,
  music, video and games.

If I turn on this mode, go to Youtube (or any website with a video) the sound is still on.

Is there a way of simply disabling all sounds from this phone? This can be a problem E.g. If I browse to a news website with an auto play video, the sounds can start up

Screenshot (as requested) of the Message and Do Not Disturb setting


问:
How to enable USB debugging on a soft-bricked Huawei phone?
Yesterday, i rooted my phone with KingRoot and downloaded a SoftKey Enabler because i wanted to play Uplink on my Huawei Y560 (a.k.a. Y5). The SoftKey Enabler edited the build.prop file. It restarted my Huawei Y5, but after it showed the Huawei logo, the screen flashed and turned dark. I panicked a bit, took out the battery and restarted into Recovery Mode with pressing Vol + Power. I formatted everything, cleared the cache, but it still didnt work. Then i found that i can fix it by using ADB, but it required USB debugging enabled, which i dont know how to make.

My goal is: To repair a soft-bricked Huawei Y560 (Y5) file so it can boot again. It has no USB debugging enabled, and the firmware on the official site is outdated. Please, somebody help me!


问:
Android: Unreadable files - broken flash cells?
In the last month I noticed that more and more files on the internal data partition of my Android phone are broken. The files cannot be read via MTP and are empty when opened on the phone itself (e.g. grey pictures). As the number of "new" broken files increases I think that a part of the flash memory is broken.

1st: Is that a possible explanation? I would have expected flash controllers to hide broken cells automatically?!

2nd: Can I manually mark those sectors as bad sectors?

3rd: SATA-SSDs show how weared-down they are via SMART reporting - is there a way to check the quality of the flash cells within an android device?

Android is 4.4 CM 11.


问:
Multi-call - Route calls to multiple cell phones at once
I have 2 employees, each with their own cell phone and cell number. I am trying to find some service where I can call one number and both of these employees' cell phones ring; the one who picks up first takes the call. Ideally this would happen by calling either of the employees' existing lines, but having it happen when someone called a new, 3rd line would also work. I only need this for 2 employees.

I know Google Voice can do this, but unfortunately their VoIP service has had too many issues with lag/choppiness for me to use them for business. Do you know any other apps, services, or otherwise that can do this without sacrificing call quality?

Thanks!


问:
Is this simple method of moving ANY app to an external SD card on KitKat reliable?
There are hundreds of articles and many SE QA's about moving apps to an external SD card.

Some of the articles and QA's are outdated, some are incorrect, some require the device to be rooted, some require additional partitions to be created, and some require specific apps that cost money or include ads.

I stumbled on this article, which described a technique that seems unbelievably simple: http://www.howtogeek.com/114667/how-to-install-android-apps-to-the-sd-card-by-default-move-almost-any-app-to-the-sd-card/

The crux of the article can be summarized in a concise manner.  It states that the key is running this simple adb command:

adb shell pm setInstallLocation 2

This technique is free (gratis), ad free, and requires no extra software or partitions on the Android device.

But does it work?  Is it reliable?


问:
Can you flash a SM-G900P ROM on a SM-G860P?
I am an owner of a Galaxy S5 Sport (SM-G860P) and there's very limited support for ROMs out there. I have heard a couple of people saying you can flash a Sprint Galaxy S5 (SM-G900P) ROM on there as long as you flash the Sport kernel on there or something like that. I've also checked the specs and the two phones are nearly identical if that does matter. I don't want to wipe out my phone and then flash something that doesn't work.</p>


问:
Android TV box + Remote Control + Netflix
I use a mele Android TV box with a mele remote control. This works perfectly with Kodi and MXPlayer, but the netflix app is extremely uncomfortable. It only works, very temperamentally, with the mouse controls.

I am Primarily looking for Play vs Pause controls actually.. The rest sort of works, but pause is very conspicuously lacking. Is this actually expected or is there a way to get my play/pause button on my remote to work with the app?

To be clear I want a way for it to work with my remote control. Not for a way to use my phone as a remote control for netflix.


问:
AOSP keyboard and unicode characters
Is it possible that unicode characters like š,č,ž are shown next to standard characters on the keyboard? My keyboard is Slovenian (QWERTZ), and I have to long press 's' to get the 'š' character. My system is Android 5.1.1 (CyanogenMod 12.1).</p>

Title: AOSP keyboard and unicode characters


问:
Tasker profile that switches network to 2G when the phone is charging
I would really appreciate it if someone could whip up a nice Tasker profile which switches network mode to 2G immediately my rooted OnePlus 2 detects a charge state.

A drawback of OnePlus 2 is the lack of a fast charge feature so it can take a while to charge fully. Phones charge faster on 2G than LTE or 3G in my experience.

Thanks in advance


问:
Why is one meeting time wrong
I have an Exchange account through work with many meetings.  They all show correctly on my PC and my phone (Nexus 6P)...  except for one.
It's a recurring meeting and it shows that it happens 1 hour before it actually does - only on my phone.
I even deleted the meeting and had the meeting owner resend the invitation.

Thanks for any ideas.

Title: Why is one meeting time wrong


问:
Cause and solution of "Error: Unknown operation string: <OP>"
First of all, the following command works perfectly fine on Android 5.1.1 (CM, PA and Tesla ROM builds):

```<code>adb shell su -c 'appops set android SYSTEM_ALERT_WINDOW deny'
</code>```

The said command blocks Android System (android) to draw over other apps (show overlay).

The same command on execution in COS12 (Android 5.0.2) throws the command's usage and the error:

```<code>Error: Unknown operation string: SYSTEM_ALERT_WINDOW
</code>```

(SYSTEM_ALERT_WINDOW henceforth as <OP> here)

Per the info in the source code of AppOpsManager.java, the error should show up when <OP> is null which it is not in my opinion.

Series of failed attempts

I tried with multiple types of operations with no avail, both in uppercase and lowercase characters.

I also unsuccessfully tried with interactive shell session, that is, adb shell → su → command.

I replaced single quotes with double quotes and also attempted with enclosing <OP> with double quotes.

I hopelessly tried android:system_alert_window as <OP> too. Same goes for using OP_<OP> as <OP>.

While I didn't need to change the SELinux status to Permissive in CM12.1, I did set it to Permissive and tried aforesaid steps with no success.

Tried for a change: I thought App Ops by nowsky and App Ops  [Root] by Droid Mate might help but they simply showed what Privacy Guard of CM gives.

I edited /data/system/appops.xml and reflected the changes found in the same file for CM12.1. Since I was not clear on what I was doing, it partially worked.

There is the system service appops and I've no idea how to make good use of it.

So, what is wrong in my command and how do I make it work?

My original goal

The problem posted here can be solved by that first command in all of my Android 5.1.1 builds. (There may be side-effects of it.) Now I need to find a way to port my solution on Android 5.0.2 build.

Note: the device is OnePlus One.

Update: I've now tested the command on stock Android 5.0 (running on Nexus 6) and the situation remains same.


问:
How to use a wacom tablet with Android
I would like to know how to use a Wacom graphics tablet with an Android smartphone or tablet. I have seen that it is possible in a YouTube video, wanted to know if there is any kind of driver or app that does this, because I I just tried to connect to my tablet (Wacom Graphire 2) on my smartphone and Moto G 1st generation (also already tested on a Moto x nothing).

I cannot take my PC to other places, and if the tablet worked on the smartphone that would be much more practical.

Title: How to use a wacom tablet with Android


问:
How to delete email account from Android 5.0.2
I am not able to delete my outlook account from the android. It is Lenovo A6000.
I want to add my work email address instead of outlook.com

I have already added my work email address however I am not able to delete the outlook account.

I have tried pressing the bottom left key but it does not give the option to delete the account.


问:
insufficient storage on htc
I recently purchased an HTC Desire 510 ever since I got it I have had issues with not having enough space. I had a 5gig SD card that I was using and it still seemingly wasn't enough space even though I had almost nothing installed on the phone and had almost no pictures or videos or anything else. So I went and picked up a 32gig SD card thinking this would solve my problem. I switched my storage settings to have my SD card as my primary storage source. I know my phone is reading the card because it shows up and it shows me how much space is left but when I went to install something my phone still told me "insufficient storage". I'm getting frustrated because I don't know what else to try and correct this problem. Help?</p>

Title: insufficient storage on htc


问:
Total Commander, is Move supposed to work over FTP?
I'm using an AT&T Note 4 with Total Commander (the latest according to Google Play) and sending files to FileZilla server 0.9.41 on Windows.  The user has read, write, delete, and append for files, and create directory permissions

The move command on Total Commander does not seem to work.  It's copying the files, but not deleting them from the Note 4 after the copy.  I can manually delete the files.  Occasionally I get an error about permissions where it says it can't delete the folder.

I was trying to move things from Downloads, and now I am moving other things.

It took me a while to figure out how to move things with Total Commander (it's backwards), so I wonder if my expectations are also misplaced.  Should a move command to an FTP server work like a regular move command anywhere else?

EDIT

It seems like there are special permissions for Android installed/default directories.  I'm so used to root access that I forget this phone isn't rooted.  Directories and files within those behaved as I expected.


问:
How do I change the lock Pattern !!!! - Lenovo A7000
i have lenovo A7000, and i had recently had performed a reset, but, after setting the pattern, now i want to change the pattern as my brothers know the pattern. so, whenever i go to security settings and try to change it, the screen becomes repetitive and asks me to confirm the pattern infinite times, after giving the correct pattern too it again asks the same.... i cannot the change the lock as there is no screen to set it on the different modes like pin etc. what should i do ??? i tried clearing the certificates but it is grey and i dont want to hard reset or format the phone now.... pls tell me the correct way to go through it......</p>


问:
How can I evaluate availability of security updates for CyanogenMod / Cyanogen OS
Suppose I'm looking at a Cyanogen OS phone.  It seems to be very difficult to find a history of available build versions (and compare the dates e.g. to the first build of that version available for any phone, or when the security issues it fixes were released).

How can I check the quality of this support for a specific phone, like the WileyFox Swift?

Do I need to forget about complaints for community-maintained CyanogenMod... just look at commercial Cyanogen OS as a monolith, and ask how well they're doing in general?  Is there a written evaluation of this anywhere?

[I'd like to think of Cyanogen OS as more credible than vendors who go through carriers.  And only promised monthly security updates after the most glaring remote security hole a few months back.  Or who just completely fail on updates after claiming they wouldn't, because of a change in ownership.  But I can't even find marketing claims about the superiority of Cyanogen OS here, so this seems fairly wishful thinking on my part].


问:
marshmallow and personal security/privacy
I've been reading the news in the US about a court order for Apple to help the FBI bypass the security check present on devices running iOS8+. Since iOS8, Apple has stopped storing encryption keys on the cloud.

I'm just wondering how does this apply to Android. I believe Nexus devices that came with Marshmallow out of the box (6P and 5x) have full disk encryption thus these will have the same security as iOS8+ devices.

How about those that were upgrade to Marshmallow? I know my G3 was upgraded to Marshmallow but encryption is turned off. Also, does turning it on make a difference? Or perhaps the 6P and 5x has extra hardware so encryption keys aren't stored in the cloud?

Thanks for reading and your replies :)


问:
Android Wear: Way to choose a watch face using voice commands?
I love voice commands on Android Wear. Is there a way to choose a watch face using only voice commands?</p>


问:
Checking if audio is playing with bash script on Tasker
I have the small script below to check if audio is in use on my Android.

```<code>if grep -q RUNNING /proc/asound/card*/pcm*/sub*/status; then echo "Playing" ; else echo "Idle"; fi
</code>```

It works nicely in the console. However, if I execute it in Tasker it always returns "Playing" which means it always evaluates to true.

Anybody an idea why this is happening?


问:
Volume Button does not work during Recovery Mode
Hello I am trying to update my samsung Ace into 4.1 and for this reason I need to run Recovery Mode. I am able to open Recovery Mode but I cannot move using my Volume Button. Is there a way to solve this issue? Thanks in advance</p>


问:
Mount external SD folder to /data/user
I'm trying to free up some space and install large games on my rooted Samsung Galaxy S2 with an external SD card. The app I've been using is FolderMount, which mounts any folder in a different location. Using this app, I've successfully mounted /storage/extSdCard/Android/obb/com.*.appname to /storage/sdcard0/Android/obb/com.*.appname for a number of apps. I've also sucessfully mounted /storage/extSdCard/data/com.*.app to /data/data/com.*.app. This effectively means anything that tries to access these locations on my internal storage actually accesses the external location, thinking it's on the internal storage (basically the same effect as symlinking), as far as I understand the process.

However, I'm now looking at an app which stores large amounts of data in /data/user/0/com.*.theapp and FolderMount fails to access the user profile: When I navigate to /data/user/ in FolderMount, it shows the folder as empty, even though it contains the folder 0/ when I navigate to it using RootBrowser. Since FolderMount uses root permissions, this shouldn't be an issue, but just to be sure, I edited the 0/ folder's permissions to 0777 and it didn't help.

So now my question is, how do I mount an external location to my /data/user/0/ folder?

Is there a profound reason FolderMount can't access my user profile folder? Can I achieve the same result with a different app? I have Link2SD, but the free version doesn't link app data and I don't want to buy an app to do something I can perfectly do for free with a different app...

Title: Mount external SD folder to /data/user


问:
Google Pixel C erratic USB data connection
Any ideas why some days my computers "see" my Pixel C over USB, some days they don't?  Two different computers, two different cables, also an older USB cable with USB-C adapter.  All work well for charging.  But often I don't get the menu that lets me choose a data connection, the tablet isn't detected at all.  Thanks.</p>


问:
Stopping downloads
I have an LG G4 phone that doesn't have Download Manager enabled.
It started downloading something on its own, even though Play Store is set for "do not auto-update apps". How can I stop this download?</p>

Title: Stopping downloads


问:
After what types of failures is it advisable to reboot an Android device?
With some desktop operating systems, I often recommend that users reboot their systems after a crash.  The logic is that memory could now be corrupted, and the system could be trending towards instability.

What about with Android?  When a process in Android fails, is it advisable to reboot?

I see 6 common cases:

When a third-party app crashes.

When a Google app, such as Google Play services crashes.

When a core software component (but not part of Android) crashes.  Such a component may have been installed by the device manufacturer.

When a component of Android crashes.

When the user Force Stops an app that is running.

When the user Force Stops a service that is running.

In which of these cases, if any, is it advisable to reboot the Android device?

If you don't know the answer for all the cases, but can contribute for just one or more of the cases, your answer is certainly welcome and will be appreciated.

Update (Optional Reading)

In Firelord's first two comments below (I'm guessing there will be more!), he/she brings up very good points and makes a smart suggestion.  Firelord asks me make it clear the type of answers that I will find to be most useful.

The best answer will be one that can answer the 6 cases with reasonable certainty based on a technical understanding of Android.  The next best answer (which will still be extremely helpful and useful) will be one that can answer some of the cases based on a technical understanding of Android.

One thing I've learned about Android, is that very few people actually have a good technical understanding of the OS.  And those who do have this knowledge are only sometimes interested in answering questions that can be turned into a FAQ or community resource, like this one.  (Which I understand, given that providing good answers is not easy and takes time.)

As such, I'm also open to answers that cover 1 or more of the 6 cases based on personal experience.  I'm also open to answers that are based on other resources and articles.

Firelord's comments inspired me to think a little more about why I am asking this question.  The reasons are twofold:

A. System stability is very important.  I have had multiple Android devices become corrupt, which resulted in a large expense of time to get everything working again.  (All of them were Samsung devices, which were flashy, but not reliable.)  I would like to avoid data loss and corrupt devices as much as possible.  (Although backups help avoid data loss, it is not always possible to have everything backed up all the time.)

B. Due to (A), I think I have become a chronic rebooter.  At the first sign of trouble, I tend to reboot the Android device.  Rebooting is a time-consuming process, so I don't want to reboot unless really necessary.  It takes several minutes for Android to truly settle down after a reboot.  Plus, rebooting drains the battery, as the CPU cores are generally all running at maximum speed during a reboot.


问:
How to Stop Applications & Services from Starting on Boot?

Possible Duplicate:

  How can I stop applications and services from running?

I know how to kill running applications and services via Settings > Applications > Manage Applications > Running but they keep coming back after I restart the phone.

Is there a way (or tool) to suspend their restart on boot?


问:
Is it possible to require "initial unlock" for smart lock
Is it possible to enforce initial unlock while using smart lock?

For example, I'm using smart unlock with "Trusted places" and I would prefer it didn't automatically unlock when I get in range of my trusted place. Theoretically that means someone could steal my phone, follow me home and gain access to it when he gets in range.

Can I somehow enforce "initial unlock" even when I come in range of the trusted place. After that initial unlock, the device should remain unlocked until you leave the trusted area.


问:
Internal memory on my Android is full: even after factory reset (and no apps downloaded). What can I do?
I can download apps of up to 16 MB or so but that's about it. I can't free up enough space to download a single "big" app like Facebook. And it's weird because my phone was able to download this app (and many more) the first time I used it.

So I'm guessing there must be junk files on my internal memory, but I've done EVERYTHING in my hands to find them: deleted cache; logcat; even apps like "Clean Master".

Is there anything I can do to at least download Facebook and nothing else? I don't want to buy a new one just to use that app. My device isn't rooted by the way.

EDIT: Sorry for adding a reply down there. I asked the question as a guest and then realized I couldn't logged as said guest again to comment on my post.

If it helps, running the app "DiskUsage", I get this info:

Out of 186.4 MB of internal memory:
132.8 MB appear to be free; 32 MB are taken by the system data; and 21.6 by apps (they're all system apks that take up the space: Google Play 9.05 MB; Maps 3.01 MB; Gmail 2.26 MB; etc.)


问:
What is the 'Chat' function on my Smart Prime 6
I just got my new phone (Vodafone Smart Prime 6) and have a function called 'Chat' when in Message settings.

The messages sent on this chat function are shown in green (compared to the blue ones when sending a standard SMS). They also show when somebody is typing and when the message was read.

First I thought those are Google Hangouts, but I could not find them under the Hangout webpage on hangouts.google.com, which leads me to the conclusion that those are not hangout chats.

Could you tell me which service this is, and more important -> is there any chance to back up those messages (either via textfile export or as a file that can be imported to a new -same model- phone).

I am running Android 5.0.2. You can see a screen shot of that settings menu on the link underneath.

Kind regards,
Mike

View image on imgur.com


问:
Connecting Raspberry Pi to Android Wear
I have a Raspberry Pi with a Bluetooth Dongle and an Android Wear Device (LG G Watch). How would I connect my G Watch to my Raspberry Pi via Bluetooth? Thanks!</p>

Title: Connecting Raspberry Pi to Android Wear


问:
Why can I write to a read-only system partition?
I have a rooted phone running android 4.4. When I check the output of 'mount' it says system is read only. My root file manager or terminal can't make any files or folders there, though only the file manager shows an error occured.

But I found I am able to copy files from my data partition to system, even overwriting system files if I want to. Why is this?

Another odd thing I noticed is that the system applets like mount and mkdir are actually symlinks to a binary file called 'toolbox'. For some reason I am not able to remount the system partion with the normal syntax, it says invalid option (using -o remount,rw /dev/xxx/system /system). This is preventing me from installing busybox with an installer app.


问:
LG G3 -504 bug (also cannot install .apk) of Facebook
my friend has LG G3, recently updated to Android 6.0 Marshmallow and he gets -504 error code when he tries to install official Facebook app. I even tried to download .apk and tried multiple version but no progress. It doesn't looks like it's a gateway problem and he's pretty desperate. I looked at some answers and tried removing cache etc. but nothing has solved the problem. I look for any help.
Thanks very much for any reply.
-Feldrod</p>


问:
Dolphin browser won't let me change default video player?
In Dolphin I had set "BPS player" to be the default video player when I selected the "Open in other apps" option in the dolphin Player. Now I want to change the default video player again but when I choose "Open in other apps" it just opens the BPS player! I tried to "clear defaults" on both apps but it didn't work. Do I have to uninstall Dolphin or BPS player? Help, searched all over google but didn't find anything.</p>


问:
Difference between flashable firmware files of 2 same model phone with different internal SD size?
I have a Gionee m2 8gb which is in a bootloop, so I downloaded flashable firmware files for it, but mistakenly I downloaded gionee m2 4gb flashable firmware files. Is it possible to use this files for my phone with some minor changes?</p>


问:
Backed up and formatted SD card, now "app isnt installed" error
So i was having this error on my laptop which didnt allow files to be copied or moved to and from my SD card. The error happens mostly when copying to my sd card. When i try it says something like the device disconnected or isnt responding

Anyways after googling the problem, i came across a solution that said to format my SD card, so i backed it up onto my laptop, formatted the sd card and put the original files back onto the sd card (it didnt fix the problem, putting the files back on was a struggle and eventually had to put them on my web server on my laptop and download from my phone)

While the sd card was formatted, i got the problem with not being able to load any of the apps, it said "app not installed" (this was expected since most of my apps were on the SD card) and i thought the problem would be fixed when i put the files back on however i still get the "app isnt installed" error. I cant move the apps to the internal storage from the settings since it says the app doesnt exist

So

Issue #1: how do i get the apps back? Re downloading them is a pain since my internal storage is pretty full already and i dont have much space for downloading apps

Issue #2: how do i prevent the error message from happening when copying files to my SD card? Ive tried using different cables, ports, uninstalling drivers and even tried it on a different laptop but it still doesnt work which makes me think its something to do with the phone. For some reason it allowed me to copy the sd card content to my laptop so im not sure why that was.

Thanks for reading, i hope someone is able to help. Thanks


问:
If we upload video to youtube using youtube official video, should we keep the app foreground?
I did  a few tests. it seems that if I go to another app, then the video is not uploading.

Can youtube app keeps uploading videos while it's not the foreground app?


问:
Some Google contacts are not synchronized
I am a long time user of Android and Google and have all my contacts in Google Contacts, synchronized on my phone. So do my wife and my children.

Within the same domain (managed via Google Apps) I have one other account which behaves differently (my father's - the only person who does not do anything fancy with his phone).

Almost all of his contacts in Google synchronize to his phone. There are a few (10% maybe) which do not. They exist in his Google account and do not get synchronized. They belong to "My Contacts", like others which do synchronize. They are not special (the name is in ASCII, there is a normal email address and a normal phone number associated).

When creating a new contact on the phone,  it synchronizes to Google.

When creating a new contact in Google, it synchronizes to the phone.

Contacts from all accounts on the phone are set up to be displayed (and they do).

I deleted and recreated on Google one of the contacts which does not synchronize. It synchronized to the phone.

In other words, I am stuck with some contacts which for an unknown reason refuse to synchronize from Google to the phone (the other way round it works). What could be the reason?

Is there a way to reset the synchronization short of deleting/recreating the offending contacts (this is cumbersome as I do not know which contacts are missing, except if I review all of them one by one).


问:
Touchscreen partially not working, digitizer broken? (image included)
I have an Xperia V and two rows on the touchscreen are not responding. I dropped my phone but there's no scratches on it, so I don't know if its software issue or hardware as I noticed this problems hours after the incident. I Guess it's the digitizer. I opened it but everything seemed intact. Anyone had the same issue? How can I repair it or the display should be replaced?

Many thanks in advance.

P.S. I´ve factory reset my phone but the problem remains. Some repair shops told me to replace the whole display but I´m not sure if that´s necessary.

Here's the touchscreen test image, almost half of the screen not responding to touches(although works with a mouse attached to phone via OTG cabel):


问:
link2sd. Most Apps were gone after restarting
I just rooted my phone and successfully link all movable apps to my external sd's 2nd partition (ext4) using link2sd.

I did a restart and everything's fine, same on the second restart...

but the third time most apps disappear, only system apps are there...

When I try to use messaging app to text someone, it'll crash. It will say: "Unfortunately, Messaging has stopped".

What should I do except from restoring my backup or doing factory data reset?


问:
(Nexus 5X, Marshmellow) Gmail app: how to see separate notifications for each new email?
I have a Nexus 5x with Android Marshmellow. The Gmail notification I see on my locked screen groups all the messages together and shows "5 new messages". Can I see each new email as separate notification, (so, 5 notifications)so that I can know who sent the mail, the subject etc. instead of only knowing that there are 5 messages?

I recently moved from iOS and missing that feature. Thanks!


问:
Every microphone app for using with AUX has a loud noise in the background
Every app that I download for android with the function of using android as an external microphone (For example, attaching the fone to pc using an AUX cable) produces an noise that is very loud, and I not even need to connect the phone, the app itself produces the noise. It's a weird, very loud noise. I've already disabled wifi and GSM to see if there was any interference, but it wasn't the case.

Is there any hack, app, or configuration to fix that? I can't find a solution anywhere.


问:
After update from Android 5 to 6 new permission model does not affect application

I had an application installed on HTC M8 Android 5.1, e.g. app was able to read Contacts.

Device was updated to Android 6.0.

I want to check how new permission model works so in app's settings I disable Contacts.

Then I go to app and try to read Contacts and ... it works but AFAIK it should not.

However I can't make phone calls from within the app (SecurityException happens).

Why is that?


问:
How to get rid of voice bar over keyboard in Android 6?
I want to remove the horizontal bar with the microphone button (voice input) showing over Android 6 keyboard (marked with the red border).

I know which settings are supposed to control this behaviour and I'm able to accomplish the task in Android 5. Yet in Android 6 this seems not working as expected anymore.

Here is my Language settings (including Voice typing):

And here is my Ok Google settings:

Most interesting part is that while the Voice typing option is off, its summary does actually read "automatic" (which is suspicious and illogical). Yet in Android 5 it works the same way, and the voice input bar is not showing over keyboard.

One more thing to note is that in Android 6, with the given settings, the voice input does not function - that is pressing the microphone button has no effect at all. Yet the horizontal bar wastes valuable space.

I've sent a feedback to Google - no responce. I've tried to send a message to a couple of public Google's emails (including published in Google Play as contacts!) and got responces from robots that those are no-reply emails. So there is no support from Google. I hope the community can help to solve the issue. Thanks in advance.

PS. Should we have Voice typing tag (which I'm unable to add)? google-voice-actions is most close from existing tags, but still not completely correct.


问:
Getting Android 4.x on the HTC Holiday (with complications)
Device: AT&T HTC Holiday w/ Android 2.3 & no service

Goal: To get Android 4.x (any derivative) working on said device.

Problem: When I tried to install the PACMAN ROM (by loosely following the instructions provided at Update HTC Raider/Velocity/Vivid/Holiday TO Android 4.4.4 KITKAT) I got my phone stuck in a boot loop, meaning I can't S-OFF it using the tools provided at unlimited.io. (ControlBear is too impatient waiting for the phone to reboot because the phone is perpetually in a slow-to-start first-run state as it can't get past PACMAN's language selection screen before restarting itself, I'm assuming because the phone knows PACMAN isn't signed by HTC so it kills it) It doesn't help that ControlBear is closed source, meaning I can't modify it to suit my specific conditions.

The bright side: I have the recovery "CWM-based Recovery (by @KDH4865) v5.0.2.7" installed on the phone, so I can flash any OS ROM I want, it's just not guaranteed to work.

Problem (cont'd): I don't have a backup of anything.

The bright side (cont'd): I imagine installing a ROM that is signed by HTC might work, such as that over-the-air update to ICS which was never received. Alternatively, I have heard chatter on the PACMAN forums about "flashing boot.img" as an alternative to S-OFF, and I have no idea what that means. All I know of are the OS partition, the user data partition, the bootloader (on a separate BIOS chip?), the recovery partition, and the GSM antenna which does that nasty S-ON security stuff. I am clearly missing a small chunk of information in my brain.

Where might one go from my current situation in pursuit of one's goal?

EDIT: It turns out HTC gives away what it calls "ROMs" in Windows executable format for its devices free of charge. Apparently it's some kind of "RUU" thing, which I guess is like Android open heart surgery. I'll try that and see how it works.


问:
Headphone Controls Android
Most threads I find on this information is pretty old, so I wanted to see if anyone has come up with a workaround.

My headphones are the RHA SA950i (wired), which are wonderful. However, the headphone controls (Volume Up, Pause/Skip, Volume Down) only slightly work. The center button, Pause/Skip works, but Volume Up/Down do not. I have a Google Nexus 6. I was wondering if there have been any apps or other workarounds created that allows for me to use Volume Up/Down? Also, I do have a custom ROM (OmniROM) with Root access.

Thanks!

Title: Headphone Controls Android


问:
Connecting Android to PC so I can talk from PC?
Can I connect Nexus 5 to PC using wires, so I can talk from PC?

I have a 3.5mm-1-TRS(3ring)-female to 2-TRRS(4rings)-male-cable. (Don't know how to call it, sorry.)

After connecting LINE-in and Speakers port to the phone, I can hear sound from headphone on PC.

but my voice doesn't seem to go into Android.


问:
Can't change my lock screen password remotely
I've tried changing my lock screen password using the Android device manager for my Samsung Galaxy A3 with Lollipop, but when I clicked on "lock" the following message was returned:

Since Google has verified that a screen lock is already set, the
  password you entered won't be needed.

I want to be able to remotely change my lock screen password using the Android device manager, is that possible?


问:
OnePlus Two Freezes often
I have been using the OnePlus Two for few months now. About two months ago it started freezing and slowing down. Often I have to power cycle the phone in order to get it working again. Usually it happens when I charge the phone, listen to music, or watch videos.

Has anyone else experienced anything similar? Any ideas how to find why its being so slow, and how to fix it?

Title: OnePlus Two Freezes often


问:
Cannot mount mtdblock partition
I'm trying to mount the boot partition of a tablet with MTD partitions. This is the output of cat /proc/mtd:

```<code>root@android:/ # cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00400000 00004000 "misc"
mtd1: 00c00000 00004000 "kernel"
mtd2: 00c00000 00004000 "boot"
mtd3: 02000000 00004000 "recovery"
mtd4: 04000000 00004000 "backup"
mtd5: 08000000 00004000 "cache"
mtd6: 40000000 00004000 "userdata"
mtd7: 00400000 00004000 "kpanic"
mtd8: 20000000 00004000 "system"
mtd9: 169400000 00004000 "user"
</code>```

So, I make /mnt/testfolder then run:

```<code>mount -t vfat /dev/block/mtdblock2 /mnt/test
</code>```

And I get:

```<code>mount: Invalid argument
</code>```

Same error with ext4. I tried yaffs2 and I got:

```<code>mount: No such device
</code>```

This is how it looks with DiskInfo:

How can I mount this partition?

Title: Cannot mount mtdblock partition


问:
Google Now opens when not needed
From time to time Google (voice) search randomly starts on my phone (Huawei Ascend Y300, Android version 4.1.1)

I'll be listening to music for example, change songs, and out of nowhere Google voice search will open, I have completely no idea what button I'm pressing or what I'm doing to activate this, but knowing what opens this will be of great help.

I've gone to the settings, Google Now is already turned off and there doesn't seem to be anything relevant there I can do.

How do I solve this? Thanks.

Title: Google Now opens when not needed


问:
Why does my Moto G 2nd gen show H and not LTE?
I just switched from T-Mobile to Cricket today, for 2 Android phones. One is my existing OnePlus One and it shows LTE next to the signal strength. The other is a (new) Moto G 2nd gen, which I read supports LTE but shows "H" next to the signal strength. And boy does it seem slow.
In addition, if I go to the Preferred Network Type in Settings, only 2G and 3G are listed. No LTE listed.
Is this correct or do I have a bad SIM?
Thanks.</p>


问:
Disable call back link on text message previews?
Android 5.1.1 on a Samsung Note 4.  Text message notifications show the text message and then "CALL" and "REPLY" links.  Sometimes I accidentally hit the "CALL" button and find myself calling someone I did not want to call at that time.

How can I disable/remove the "CALL" link? (or if there is an alternative way to avoid the accidental calling)


问:
Android : How to load a custom ROM without SD-card
I have an Asus TF-201(rooted), on which I would like to install Android. I have downloaded the Cyanogenmod ROM/OS, which is in a ZIP file(200Mb), contains files like boot.blob, system.new.dat(405.9mb), etc.

I have copied the zip file in a Pen-drive and the pen-drive is plugged in on keyboard of its Dock. After that, I booted into the recovery mode by CWM, but when I say mount SD-Card, it says, cannot mount SD-card.

I also cannot find the option of exploring the internal-storage in recovery to point the location of ROM.zip. What should I do?

Next thing I tried was to sideload as I have a UBuntu system running which can recognize the tablet. As soon as I start the sideload command, I don't see any progress or anything, the command just waits with a blinking cursor, waited for 1 hour and pressed ctrl+c.

So, now I have a ROM image sitting on my tablet, but no way to boot into it. Can anyone help me with booting from it. Please note, the memory-card slot is damaged.

Is there any way to get to trigger the installation? Kindly let me know. Thank you.

Update

This is what I see :


问:
Facebook message read on desktop, but still marked as unread on Android phone
So the problem is, when I'm on my computer and I'm chatting on Facebook through safari, the messages show up as notifications on my phone. They do not go away, even though I am reading them and answering them through my computer. Do any of you know if there is a way to sort of 'sync' this up? Right now, if I chat with 5 people simultaneously on my computer, I have to get rid of five notifications and chat heads on my phone afterwards which is pretty annoying..

Kind regards, Jonas


问:
Getting "App2SD is not supported" error when trying to move an app to my SD card
I’m using an Android LG Tribute phone, which I have rooted.  I want to move some apps to my SD Card and so I installed the “LInk2SD” app (because there was no “Move to SD Card” for any of my applications in the Settings -> App section of my phone).  When I go into Link2SD, select an application, and click the “Move to SD Card” button, I get the error

```<code>App2SD is not supported by your device. Because your device has a primary external storage which is emulated from the internal storage. You can link the app in order to move its files to your SD card.
</code>```

I have read in other posts that the solution is to link instead of move, however in each application, the “LINK TO SD CARD” button is greyed out.  I don’t care particularly about Link2SD but I am interested in how I can start moving some stuff to my SD Card.  Any advice about fixing the above error message is appreciated, - Dave


问:
After deleting all pictures, internal storage view still shows over 6GB of pictures
I connected my nexus 5 to my computer in MTP mode and deleted all pictures I could find. But after deleting all pictures (I looked in the DCIM, pictures, panoramas, whatsapp pictures), it shows still over 6GB in pictures in the internal storage view.

I even used the windows search to search for *.jpg and *.png files, but besides a handul of small files, I cannot find the missing 6GB of pictures. How can I find where the other pictures are located?


问:
Enter Issuer / Provider name manually in Google Authenticator App
In Google Authenticator app, while setting up the account manually (i.e. not scanning the QR Code), how we can enter the issuer name (i.e. provider / service name like Google, Evernote, Facebook, etc..) along with an account name (generally an email / login id).</p>


问:
Unlocking the screen of Nexus 4 from pc
I am trying to unlock myphone through pc as the screen is broken and does not work. For now only power and volume buttons work.

I tried looking around and found about ADK but whenever I tried to run adb shell it says "no device found". Although my device is connected to pc but it only shows the internal memory if its unlocked.

Secondly, I saw some suggestions to update the values of tables using sqlite3. I also tried to use sqlite3 to update and change values to enable usb debugging on cellphone and also tried to reset the gesture lock but was able to do so.
I also have usb on the cable but I found out that Nexus 4 does not support usb mouse/keyboard.

For now I need to enable USB debugging somehow so I can use the mouse or keyboard.

Basically what I am trying to do is to enable usb-debugging on cellphone and unlock it. If I am able to do that then I would be able to use usb mouse
Is there any way to unlock and enable usb debugging through pc?

Title: Unlocking the screen of Nexus 4 from pc


问:
Why are calendar events spontaneously appearing in my phone, or Is My Phone Haunted?
Today my phone beeped during class reminding me of an event I never added to my calendar. It said, 'Jason 2/24/16'. Later today I have another event which I never added, 'Jason 2/24/16 3:30p'. Tomorrow I have an event (also never added myself), 'Jason 2/25/16 10-11a'. A few weeks ago I encountered a similar phenomena, but there was also another name used for a few events, 'Lindsay'. I deleted these old events, but I can post screenshots of the recent ones if anyone needs 'proof'. I say this because I expect some skepticism due to the circumstances of this situation.

What I am looking for is an explanation. There are some things to consider:

My phone is always on my person and is protected by a password, so it's nigh impossible for someone to have added the calendar events directly with the phone.

My phone is a Samsung Galaxy S4 (carrier Verizon), and the built-in calendar application (I believe its Samsung's own software) syncs with Google calendar. Checking my Google calendar shows none of these Jason or Lindsay events. So the events were not synced up, and they were added to the phone calendar somehow.

I don't use any apps that to my knowledge would affect the calendar, though I imagine there are some that have the ability to add to the calendar.

I have no friends or acquaintances named Jason or Lindsay.

After this happened the first time, I checked through the next ten weeks or so to make sure there were no more of these types of events. The last time I checked was probably a few days ago. So the events appeared recently.

Looking up Jason and Lindsay I found the Jenner Double-Murder case. I have no involvement in that case and knew nobody involved. For what it's worth, I live in California. The prospect of some connexion scares me.

I have three hypothetical explanations:

Some wayward app is adding events and is either doing this as an easter egg prank or just some bug or something like that.

Someone is somehow able to access my phone indirectly and is adding these calendar events. Who or why is unknown.

My phone is haunted or has a demon in it.


问:
Syncing entire SD card makes phone hot/unresponsive

Samsung Galaxy S Relay

Android 4.4.4

Cyanogenmod 11

I've tried many different solutions to sync my phone's SD cards with a computer over Wi-Fi, leaving them to run overnight because there's so much data (~30 GB), but in the morning the phone is slow and unresponsive, warm to the touch, apps like Gentle Alarm don't work, etc.  It becomes so slow that when I try to use it, it eventually stops responding completely and reboots itself.  I've tried:

FolderSync

Syncthing

Samba on phone

FTP server on phone

SSHDroid on phone and SyncBack on computer

iDrive Backup

At first I assumed it was because the apps were flawed, so I tried different solutions, but since it happens with all of them, it seems it's a more fundamental OS problem, like accessing too many files at a time or sending too much data over the network causes the phone to become unstable?  Maybe a memory leak or it opens files and never closes them or something?  How can I diagnose this and make it workable?  When I look at CPU/memory usage, it seems normal?  (Though it reboots while I'm trying to check, so a CPU/memory usage logger would be better.)


问:
How can blind users enter (keyboard) characters without resorting to a braille I/O device?
If I am unable to use my eyesight¹ and also unable to use my mouth², then how can I comfortably enter characters into my device using only one free hand?

Suppose TalkBack is enabled. Is there gestures I can perhaps (set up or register and then) use to enter characters or Chinese idiograms into the device (without using the keyboard given that hovering over keyboard keys and having each key sounded out by TalkBack seems awkward and using the keyboard with TalkBack seems unnatural to me at least)?

¹ for instance because my screen may be blinded by a very intense outdoors sun or because my eyes may be undergoing adaptation from intense light to dark light environments or vice-versa or because of an accident or because I may be taking part in an experiment requiring me to have my eyes covered with a bandage wrapped around my eyes or because I may have headphones on so as not to make noise and may be sleeping in a place with beds sharing a common room and the light coming from my device would wake others up and lead me into trouble

² for instance I may have a piccolo or other musical mouth instrument in my mouth, or I may be in the situation of a shared bedroom in the dark just described and talking would make noise, or may have a speech disability or disorder


问:
Remove multiple contact photos at once
I made a mistake of using Micopi, an app that changes all of the contact's photos on the phone. This got synced back with my contact list on Google. I'd like to know if there is a way to do a multi-edit on all of my contacts to remove their photos from my contact database at once instead of manually going through my list.

edit: Device: OnePlus One, running Sultan's CM12.1 ROM, rooted

Title: Remove multiple contact photos at once


问:
Change navigation bar icons
I have a Nexus 6 that I am currently playing with which has the "soft key" navigation buttons on the bottom of the screen. It has a triangle for the back button, a circle for the home button and a square for recent apps button.

I also have an HTC One that has the same on screen navigation but the icons are a lot better looking in my opinion. It has a curved arrow for the back button, a picture of a Home for the Home button and overlapped squares for the recent apps button.

Is it possible to change the icons on the Nexus 6 without modding/jailbreaking the phone?

Title: Change navigation bar icons


问:
Samsung Galaxy S6 touchscreen sensitivity
Is there a way to adjust the touchscreen sensitivity on the Samsung Galaxy S6? I feel like I am going to damage the screen with how hard I have to press to accomplish anything. Typing takes forever and is frustrating. TIA.</p>


问:
Intermittent Success of using Google Voice Actions "Search in App" Command
I am unable to successfully use the Google System Voice Actions "Search in App" action from the Google App (com.google.android.gms.actions.SEARCH_ACTION).

S3: Android v4.3; Google App v5.8.58.16.arm

S6: Android v5.1.1; Google App v5.8.58.19.arm64

Below is what I've tested on both devices on three apps: YouTube, Recipe App (this is the sample app used in the Android tutorial for "Search in App" implementation), and an app published onto a Google Play Private Channel (not alpha/beta test):

Command "Search for '[keyword]' on 'YouTube'": Successful on both
devices

Command "Search for '[keyword]' on 'Recipe App'": Never
successful on S3, worked on S6 before but not now (intermittent
success). I have not made any changes to settings between then.

Command "Search for
'[keyword]' on '[test app restricted to Private Channel]'": Never
successful on both devices.

(For the test app, I followed the manifest configuration in this tutorial, and using the adb command via Command Prompt:

```<code>adb shell am start -a "com.google.android.gms.actions.SEARCH_ACTION" --es query "[query]" -n "[test app]/.MainActivity
</code>```

works perfectly, i.e. the app opens with the correct search query being processed.)

Both devices use the same wifi network which is stable, and all language settings already set to English. I'm quite baffled on why the voice action did not work as intended.


问:
LGG4 marshmallow: third of apps uninstalled after turn off/on - playstore says they're still installed
My LGG4 was fine until the upgrade to marshmallow in January.  After the upgrade nearly half of my apps had lost their icons replaced by the android icon.  Clicking these, says app not installed.  But on google play store, it says apps are installed, so I couldn't reinstall them.  Native email was still there but crashed if I tried to open an email.   After several days, turning the phone off/on numerous times, the apps 'miraculously' reappeared.  All was well until I turned the phone off for a few hours 2 days ago to save battery, when I turned it back on, lots of apps apparently uninstalled again.  Play store app crashes, says play services not installed; go to playstore in native browser it says apps are installed, so I can't try to reinstall.  I have no idea what's going on or how to try to fix it.  Removing battery has no effect.</p>


问:
No sound with bluetooth headphones on Meizu M2
The headphones are paired, the controls from the headphones work (next, prev, play, pause), but there is no sound. Note, the sound does not come out of the phone's speakers - there is simply none.

No, the sound is not set to mute or low. Just so we are clear on that.


问:
Brute Forcing Android Lock; How Long Does It Take?
We've seen that iPhone calculation takes 80 milliseconds per trial to complete. And there's further increasing time penalty with each wrong trial.

Android uses scrypt to generate its Encryption key, so how long does each trial take, and how is this supported by other defenses to hinder brute forcing an encrypted device?


问:
How to manually turn on the screen during a call, while proximity sensor thinks I'm too close?
Something's wrong with my phone's proximity sensor and it sometimes thinks I'm too close to my phone even when I'm not.

Unlike the five related questions I found (1, 2, 3, 4, 5!), including one with the same model of phone, I don't want the screen to always be on, and I don't want the proximity sensor to be completely disabled (it sometimes gets it right). I want the screen to be off as normal during a call, and I'd like the proxmity sensor to continue turning the screen on if it thinks I'm "far", but I'd like to also be able to turn the screen on manually when I press a button (I'm not fussy about what button) and overrule the sensor during a call.

I thought this used to be standard... I'm sure my first few Android phones could turn the screen on manually during a call by pressing a button, but no button I've tried does anything (one exception - in Skype and only Skype, pressing the power button turns the screen on for half a second, then it turns back off again).

Sony Xperia Z3 Compact, Android 5.1.1, not rooted (and ideally I'd keep it that way).

I've tried using MacroDroid, and while it can respond during a call, it can't turn the screen on. For example, if I create a macro to enable Bluetooth and turn on the screen if I shake the phone during a call, then I shake the phone during a call, the screen stays off but bluetooth does turn on.

There's no option "Turn off screen during calls" in my phone's Call Settings, nor do I have a "Turn on proximity sensor" option under Additional Settings. I do have an option to make the power button hang up during a call, but not to turn the screen on.

To re-iterate, unlike the existing questions, I don't want to stop the screen turning off or disable the proximity sensor completely, I just want to be able to manually override it and manually turn the screen on during a call, using a button.


问:
Xperia Z1 camera problem
I need someone who knows about flashing, bootloader unlocking and related topics for this problem:

My Xperia Z1 doesn't take photos when the app tries to focus. With no focus enabled it goes perfectly.

Details:

I've read that unlocking bootloader in this phone model could make the camera useless, but when I try to see the unlocking status I get this: Rooting Status: Unknown. So I don't know if it's been unlocked or not (I bought it used at eBay).

I've tried disabling stamina mode and flashing firmware again (5.0.2 and then autoupdated to 5.1.1) but stills the same.

Questions:

Does somebody know the exact solution to my problem?

If not, could it be related to camera software (I mean, the hardware's internal software, not the app)?

Could it be related to Android version? Maybe downgrading would solve it?

At least, how could I know which is my bootloader status?

Any other help you think that could help

Title: Xperia Z1 camera problem


问:
How can I find out if the Bootloader is locked or not?
Is there a direct way to find out if the bootloader on a new unrooted device is currently locked or not? I would like to do this without the risk of clearing or bricking the device. I am looking for some command in adb or fastboot that will just provide this information.

The reason I ask this, is because all my rooting attempts have failed so far. I suspect a locked bootloader.


问:
Call a number on a website
Instead of having to highlight a number, copy, switch to call app, paste the number, and dial, is there a way to dial a number found on a website directly? I heard something about copyright issue with Apple, but is there another app or workaround to accomplish this?</p>

Title: Call a number on a website


问:
Headphone issues
Whenever I plug my headphones into my LG Ultimate 2 it triggers a variety of issues including: Randomly turning volume up and down, ramdomly start playing music, pausing videos ect.

I spent alot of money on these headphones and I can't afford another decent pair, please help me find a fix for this.

Title: Headphone issues


问:
Why does my Samsung Galaxy S3 quit asking for my Screen unlock PIN
I keep setting up a PIN to unlock my screen. It works a few times, maybe 3 or 4, then stops. My phone reverts to merely having to swipe the screen to unlock it.
I will then again setup a pin to unlock the screen, it will work a few times and then the phone reverts to no PIN required for screen unlock.</p>


问:
Tesco Hudl adb sideload Gets error "installation aborted"
I have a Tesco Hudl HT7S3 which was rooted and i corrupted a file in the system and it is stuck in a bootloop. All i can use is adb sideload.
I found the stock image and have sent it to the device with adb, but when it opens it i get this error:

In case you can't see the image, here's what's on my hudl's screen:

```<code>Recovery system v4.2.41

Now send the package you want to apply
to the device with "adb sideload <filename>"...
Finding update package...
Opening update package...
Verifying update package...
Installation aborted.
</code>```


问:
Is it possible to change values in build.prop without editing it?
I want to change the line ro.build.type from user to userdebug in /system/build.prop to enable multiwindow. But this modifies the /system partition and will prevent OTA updates (and some apps) from working (I have a un-rooted Nexus which gets monthly updates so it can be annoying to flash).

Running getprop ro.build.type in Terminal Emulator returns user on my un-rooted Nexus.But before I ROOT I would to know if I can use su -c setprop ro.build.type userdebug.I will ROOT using the new systemless ROOT (which does not modify /system). All this is to enable the new Marshmallow multiwindow feature.


问:
How to restore Sony Xperia M when asking for password to decrypt storage?
My sister came up with her phone asking for password to decrypt storage and she said she didn't set any password. I can't put the phone on USB Debugging cause i don't have access to phone settings.

I tried to use Sony PC Companion to reinstall Android but it says that was not found any software to the phone.
Also tried to install Android using a using a build by FlashTools but i'm getting an error to write files based on write permissions on phone since it's locked as encrypted.

The Recovery Mode (using power button and volume-up) doesn't work either.

How can i reset to factory settings or even reinstall Android with these conditions?


问:
Strangely colored boot backgrounds after crash of stock 6.0.1
A few days ago my Nexus 5 running stock Android Marshmellow 6.0.1 crashed. Some application, I think it was Google Maps, got 'stuck' in an animation, after which the phone shut down. It wouldn't reboot until I connected the power adapter (despite the battery being at 50+%).

Ever since then, when I boot the phone, the background is bright green instead of the usual black. The edges of the boot animation are slightly jagged and when the home screen is initially shown, the colors are all weird, as in a old photo negative. A single button press redraws the screen and after that everything works fine.

To be absolutely clear about that last part: the phone is completely functional, except for the weird boot background colors described in the previous and following paragraphs.

I do no succeed in entering recovery mode: the phone only shows a plain coloured background. If I press the power button once in that state, the phone does boot, suggesting it actually is in recovery mode, but I just can't see the menu.

Now for an interesting thing: the background colour varies between 4 or 5 different colours. I've seen the same green as during 'regular' boot, but also a bright blue, a blue-green, a somewhat purple blue and a yellow-brownish background (I'm not certain all blues are actually different, there are at least 2, maybe 3)).

The same colors are shown when, during boot, I press the power button and keep it pressed until the boot sequence is interrupted and the phone reboots. If I repeat the rebooting a couple of times, the colour of the background may differ from reboot to reboot. Sometimes the same shade of blue appears 4 times in a row, sometimes followed by a green, rarely by the yellow-brown, etc.

It's a complete mystery to me what is going on. Google doesn't give me any useful results and I cannot find any documentation that explains what is going on. Has any of you seen this and can you explain how I can get out of this situation?

Bumped on 2016-03-26


问:
S5 cm12.1 won't allow to transfer files to pc
This is very peculiar I have similar problems in the past but all were easy fixes. My s5 will charge when plugged into the computer but there is no other indication that the device is plugged. I've tried reinstalling drivers but still nothing. Looked into setting in developers options to take a look at the USB debugging but sadly it was greyed out and told me options weren't available in charging mode. Does anyone have any idea how to get it out I've tried everything I could want to flash back the stock ROM.

Edit: charger actually didn't support data transfers but it worked with the same charger before. Charger must be getting old


问:
Nexus 6 automatically remounting system read-only, deleted files returning
tl;dr

I mount system rw

I try to copy/update/write /system/xposed.prop

System is auto-remounted ro, causing the write to fail (applicable to a variety of workarounds)

Moving/renaming/deleting files causes them to resurrect after a umount/mount cycle, but only for some files.

Environment: TWRP 3.0.0-1 shamu, using Android Debug Bridge version 1.0.32.

Also attempted with a 2.x version of TWRP and ADB 1.0.31.  Recovery is freshly installed.  Problematic write commands include shell redirection (>), cp, mv.  This is reproducible on my device whether I use mount, /sbin/mount, or busybox mount.

For reference (state of desired file BEFORE update):

```<code>~ # ls -l /system/xposed.prop
-rw-r--r--    1 root     root            65 Feb 29 04:17 /system/xposed.prop
</code>```

From adb shell

/system appears to be mounted correctly

```<code>/system # mount
...
/dev/block/mmcblk0p41 on /system type ext4 (rw,seclabel,relatime,data=ordered)
</code>```

Some sanity testing

```<code>/system # touch a
/system # ls a
a
/system # rm a
/system # ls a
ls: a: No such file or directory
</code>```

Ok, copy a file (xposed.prop) to /system

```<code>/system # cat /data/media/0/xposed-v80-sdk22-arm/system/xposed.prop > /system/xposed.prop
/system # cat: write error: Read-only file system
</code>```

How peculiar.

```<code>/system # mount
...
/dev/block/mmcblk0p41 on /system type ext4 (ro,seclabel,relatime,data=ordered)
</code>```

Somehow /system got remounted ro?

```<code>/system # cd /
~ # mount -o remount,rw /system
~ # mount
...
/dev/block/mmcblk0p41 on /system type ext4 (ro,seclabel,relatime,data=ordered)
~ # mount -o rw,remount /dev/block/mmcblk0p41 /system
~ # mount
/dev/block/mmcblk0p41 on /system type ext4 (ro,seclabel,relatime,data=ordered)
</code>```

Well, remount doesn't seem to work.

From another shell on my workstation {

```<code>$ adb root
adbd is already running as root
$ adb remount
remount of system failed: Read-only file system
remount of vendor failed: Read-only file system
remount failed
</code>```

}

Helpful.

Back to adb shell

```<code>~ # umount /system
~ # mount
...
~ # mount -o rw /dev/block/mmcblk0p41 /system
~ # mount
...
/dev/block/mmcblk0p41 on /system type ext4 (rw,seclabel,relatime,data=ordered)
</code>```

Ok looks remounted. Let's try this again.

```<code>~ # cat /data/media/0/xposed-v80-sdk22-arm/system/xposed.prop > /system/xposed.prop
cat: write error: Read-only file system
</code>```

... sigh

```<code>~ # umount /system
~ # mount -o rw /system
</code>```

More [in]sanity testing

```<code>~ # touch system/a
~ # ls -l /system/a
-rw-rw-rw-    1 root     root             0 Feb 29 04:18 /system/a
~ # umount /system && mount -o rw /system
~ # ls -l /system/a
-rw-rw-rw-    1 root     root             0 Feb 29 04:18 /system/a
</code>```

Ok. Let's try going the long way around

```<code>~ # cat /data/media/0/xposed-v80-sdk22-arm/system/xposed.prop > /system/a
~ # ls -l /system/a
-rw-rw-rw-    1 root     root            40 Feb 29 04:27 /system/a
</code>```

Looks like the data got written.

```<code>~ # mv /system/a /system/xposed.prop
~ # ls -l /system/a
ls: /system/a: No such file or directory
~ # ls -l /system/xposed.prop
-rw-rw-rw-    1 root     root             0 Feb 29 04:18 xposed.prop
</code>```

0 bytes??

```<code>~ # umount /system && mount -o rw /system
~ # ls -l /system/a
-rw-rw-rw-    1 root     root             0 Feb 29 04:18 a
~ # ls -l /system/xposed.prop
-rw-r--r--    1 root     root            65 Feb 29 04:17 xposed.prop
</code>```

And now my files are zombies, reanimating from the dead.

```<code>~ # rm /system/a
~ # umount /system && mount -o rw /system
~ # ls -l /system/a
ls: /system/a: No such file or directory
</code>```

Ok, I have no idea what's going on now.

Anyone seen anything like this before?  I'm suspecting some weird kernel stuff is happening, but this should be stock/default Nexus 6 Android kernel.


问:
Why does not wifi hotspot work when I open a game?
I enable portable hotspot on my Android 4.4 tablet and share its internet with PC. But, after I open a game (Clash of Clans to put it more specifically), it seems that internet sharing is disabled because I have no internet connectivity in PC anymore and have to exit the game to reestablish the connection and remove the yellow warning triangle from the wireless icon in taskbar. Why is this so and how can I prevent this from happening?</p>


问:
Developer options reset after reboot
Anyone have any idea why certain developer options (e.g. Disable HW overlays) seem to reset whenever rebooting the device, and/or how to resolve it?</p>

Title: Developer options reset after reboot


问:
How to make my car realize my phone's system sounds aren't music?
I recently got a new BlackBerry Priv, and it works pretty well so far, but when I plugged it into my car's USB port to recharge, I ran into an unpleasant surprise: the entertainment system (Ford Sync) scanned it for media and then switched away from the radio and started playing all of the phone's built-in system notification sound effects in an endless loop.  For some bizarre reason, it appears to think that they're music on my device!

Is there anything I can do on the phone to make the system sound effects stay private so the car doesn't think they're "media"?


问:
android static layout error
I just installed CatLog on my Alcatel onetouch pop c2 and I saw there is many weird errors.

Error: StaticLayout: length=52;   index=53.

I don't know what is that but I got many of them.

Anyone know how to fix it?

OS: Android 4.2.2 JellyBean (build 01002) (Model number 4032D)

RAM: 512MB

Kernel version: 3.4.5

Screenshot (click to enlarge)

Title: android static layout error


问:
Backup (export, merge) all contacts form Samsung Galaxy S5
I have tried to backup all the Contacts from Samsung Galaxy S5 to PC using Smart Switch, but it did not backup any contacts since they are all linked to either GOOGLE or EXCHANGE accounts.

What is the most straightforward way to backup all the contacts from the Samsung Galaxy S5 regardless on what account they are linked to? Like to merge all the EXCHANGE contacts to the GOOGLE account.

The reason for backup is the fact, that Exchange account used for the contacts expires soon. What happens to the contacts that are linked to the Exchange account when the account is deleted from the phone?


问:
Google Maps - prefer 'pleasant' route over fastest
Is there a way of telling the Google Maps route finder that I would prefer the least number of junctions / traffic lights, or if traffic is heavy in areas, the route with least time spent 'sitting'.

A route that is 1 min faster than another, yet involves more stop/start driving can be more frustrating than one which is flowing.

Generally, when routes are within ~3 mins difference of one another, I'm not bothered about the quickest, I just want the least irritating one.


问:
Greenify ruins my Samsung Keyboard Input Languages
I've installed this Greenify app on my non-rooted Galaxy S3. It really does the magic after hibernating some of the non-system apps (e.g. FB, Twitter, etc.)  - phone runs faster, battery drains down much slower.

But, oh hey, it removes my multiple input languages from the Samsung Keyboard. I can no longer swipe the space bar for another language - it's either English or another language I am heavily using.

Switching the Greenify off of the Accessibility Mode brings the multiple languages option back to the space bar, but practically disables the Greenify itself.

Any chance I could fix that - still run the Greenify and keep my system keyboard options?


问:
system ui not responding after changing screen density
I have cm12.1
I changed the lcd density to something low .then phone restarted ,and after restart I got message saying "system ui has stopped."
I couldn't change the LCD density back to normal
so I made a backed up /data using twrp recovery. then I wiped it.
I want to restore that data and I think I got 2 options
1--I can restore /data and use adb to change build.prop myself ..or

2--I have the data.ext4.win file created by recovery. I can change build.prop file in the backup
.
my question is,how can I browse in adb as root user
and or how can I open that data.ext4.win file (I have disabled md5 checking)


问:
Picked up a virus that self-installs apps on my phone
I thought that it's not possible for any virus-like app to self-install apps on a mobile phone. But this is happening in the case of my friend. And I have no idea how to help him.

Namely, he has a Huawei G630 mobile phone. He wanted to download an MP3 song using the default Browser (not Chrome, but default one) and got a message like "you need to update the system before being able to listen this song". This was probably a trick to force him to install a virus-like app.

After that, each day at midnight, new apps start to get installed by itself. This is a screenshot of 4 apps installed on his phone.

Screenshot (click image for larger variant)

I searched for Lutu and could not find it on the Play Store.

I also tried to find this 3rd app that does this, but in vain. I uninstalled a few suspicious apps and killed some services, but this did not help.

I also thought that this is a kind of an add-on in the default Browser (like I have it in Chrome), but I could not find add-ons in this app.

Any idea how to solve this issue?

NOTE: His Huawei is rooted so could the app be installed in the root section? This could explain why I cannot delete it as it's presented as a system app.


问:
I lost my android phone, how can I recover all my Whatsapp status and messages
I lost my android phone (MOTO G2) on my marriage day. Now I wanted to check all my whatsapp status to write full story of my life before one year back. (In short my past time)

Is there any way to recover all the whatsapp status from another phone OR any Third party application OR any recovery option?

Please guide me! Thanks all in advance.


问:
Automatic app updating interrupts video
I have a Google Nexus 6P. Irritatingly enough, when apps are finished updating, whatever video I'm watching in whatever app is paused. Every time. And when you can't schedule app updates for when you're asleep or just not using your phone, this becomes quite annoying even though it sounds like a trivial issue. Usually there are about six updates every day, and they all are seemingly updated around about the same time at which I go to bed and watch a TV-series or some YouTube videos.

Frequently having to unpause the video is not only immensely frustrating, but also ruining the flow and action of the story of what I'm watching.

So is there a way to schedule app updates, or in some other way resolve this issue?

Title: Automatic app updating interrupts video


问:
Contacts app behaviour
I'm running Cyanogenmod 12.1 and I'm having problems with the Contacts app.

A particular contact is showing in the Gmail app and in the phone app but not in the Contacts app.

Then I noticed that if I go to the phone app and select "Add contact" it shows up in the contacts app.

I cannot understand the logic behind this behaviour. Isn't Android supposed to sync my contacts with my Google account? Then why do I have to browse for a contact in Phone to "add contact"?

Title: Contacts app behaviour


问:
Can't email chats on whatapp
So I have a nexus 6P and so does my husband.  His email feature for emailing WhatsApp messages works fine but mine does not.  Every time I try to send my chat through email on my phone it does not actually attach the chat.  It will still go through the process of sending it as an email like it normally would however it won't actually attach a file.  On my husbands it will attach a txt file when the email is sent.  On mine, it will send the email but without any attachments.

Please help.  I've tried countless times and with numerous different contacts.

Title: Can't email chats on whatapp


问:
A row of galaxy note 3 screen is not responsive
The area goes right across the keyboard,  leaving the phone useless.

S-pen still works fine.

I used TSP Dot mode to show the issue in this screen shot:

Please tell me the hardware isn't shot. I sure do love this phone.


问:
Android (HTC M8) has "forgotten" my SD Card is encrypted. Help!
Having a bit of a stressful problem. My HTC m8 (Marshmallow) is encrypted, as well as the external SD card. All my photos are on the SD card. I have lots backed up but I'm having a great trip to NYC that didn't backup to google because I was roaming (it seems). Anyway, today my phone crashed (I think the battery is failing, it turned off instantly at 14%). When it turned on, all my photos are showing a gray icon (like they are corrupted). I cannot imagine how every single photo (of thousands) in multiple folders has corrupted.

Now, I noticed that when I go into Storage options the "Encrypt SD Card" box is UNTICKED. Implying the phone has forgotten the card is encrypted and thus cannot read the images. Though I thought it was weird that it can read the directories at all, implying its doing a file by file encryption rather than a full card encryption.

Anyway, obviously I know my PIN number that I need to decrypt the phone at boot up, is there any tool I can use to decrypt the images using this PIN? My fear is that (upon some research) that this is "encFS" encryption, which uses an encfs6.xml file to read the data and consequently the crash has deleted/corrupted this file. If so, this seems like a very delicate encryption mechanism.

Something else, when the phone started up again, it had reset a few other things. My default keyboard was no longer SwiftKey, I'm getting Android "tips" for scrolling etc... Does android back that file up anywhere? Does stock android call the file encfs6.xml?

Anyway, please, anyone, help me get my photos back :(

Many Thanks


问:
Galaxy tablet requires restart to download attachments
I have a Galaxy Tab A (SM-T550) running Android 5.0.2 that only downloads files from emails (in Gmail) if I restart it — after I have downloaded a file, I have to restart it for a second download. Our email is visa bt internet and if I click on a document or picture to download the progress bar runs, but it stays on 0% unless I restart the tablet.</p>


问:
Google Play Music : Error retrieving information from server [RPC:S-7:AEC-0 xxxx-xxxx-xxxxx]
When trying to subscribe to the trial of Google Play Music, I came accross this error.

I *had 2 accounts (removed secondly account while trying to resolve issue), primary is the only one active.

This account has a Card attached for purchasing,  which I use often. This card  appears in my Google Wallet.

What I have tried:

Clear data from :

Google Services Framework

Google Play Store

Uninstalled Google Play music

Removed(primary and secondary accounts)

Also removed card from Google Wallet

After each step except from data clearing which was done altogether, a reboot was done.

Any other possible solutions?


问:
How to remount /data to external partition on sdcard
I am trying to mount default partition from sdcard to /data (replace default).

My situation:

Android 4.4.2
Colorovo Citytonre vision

End Goal: I want more space for apps because all storage is used by default apps after update.

```<code>root@colorovo_citytone_vision:/ # blkid

/dev/block/mmcblk0p27: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"
/dev/block/mmcblk0p28: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"
/dev/block/mmcblk0p31: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"
/dev/block/mmcblk0p32: UUID="4019-1410" TYPE="vfat"
/dev/block/mmcblk1p1: UUID="d646a19a-670f-491d-9170-67c8d22fb4c7" TYPE="ext4"
/dev/block/mmcblk1p2: UUID="54AE-2B3D" TYPE="vfat"

root@colorovo_citytone_vision:/ # cat fstab.java

/dev/block/platform/sdhci.1/by-name/system              /system             ext4      ro                                                   wait
/dev/block/platform/sdhci.1/by-name/cache               /cache              ext4      noatime,nosuid,nodev,nomblk_io_submit,errors=panic   wait
/dev/block/platform/sdhci.1/by-name/userdata            /data               ext4      rw,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,data=ordered,noauto_da_alloc wait,encryptable=footer
/devices/platform/sdhci.1/mmc_host/mmc0/mmc0:0001/block/mmcblk0 auto        vfat      defaults                                             noemulatedsd,nonremovable,voldmanaged=sdcard0:auto
/devices/platform/sdhci.0/mmc_host/mmc2                 auto                vfat      defaults                                             voldmanaged=sdcard1:auto
/devices/platform/3f120000.usb-otg/usb1                 auto                vfat      defaults                                             voldmanaged=usbdisk0:auto
/dev/block/zram0                                        none                swap      defaults                                             zramsize=201326592
</code>```

What I've tried:

Edit fstab.java in data line

```<code>/dev/block/platform/sdhci.1/by-name/userdata            /data               ext4      rw,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,data=ordered,noauto_da_alloc wait,encryptable=footer
</code>```

To:

```<code>/dev/block/mmcblk1p1            /data               ext4      rw,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,data=ordered,noauto_da_alloc wait,encryptable=footer
</code>```

Then I mounted

```<code>mount -o remount -t yaffs2 /data
</code>```

And nothing happened, when I reboot phone fstab.java is still as before changes.

I remount / as rw and i know that fstab.java is changed.


问:
Odin fails when trying to apply firmware
I'm trying to apply the correct firmware for my region UK and carrier which is EE but i can't seem to do this since it keeps failing on me when i start the process. This is the output from the logs.

```<code><OSM> Enter CS for MD5..
<OSM> Binary Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/005> Removed!!
<ID:0/005> Added!!
<ID:0/005> Odin engine v(ID:3.1100)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Initialzation..
<ID:0/005> Get PIT for mapping..
<ID:0/005> Firmware update start..
<ID:0/005> SingleDownload.
<ID:0/005> sbl1.mbn
<ID:0/005> NAND Write Start!!
<ID:0/005> FAIL! (Auth)
<ID:0/005>
<ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
</code>```

Just some background info as to why and what i've done previously.

The problem is i can't update the software since it keeps on saying processing failed. After looking into this it may be linked to region of the device since the baseband versionis I9505XXUGNK4 and the CSC part is not a UK code which is why i'm guessing the phone can't be updated.

Also i used kingoroot to root the device and i have a superuser app install as well before using Odin but surely this can't be an issue can it?


问:
Micro sd locked internal storage
I configured my micro sd as internal storage in my moto g3 and I foolishly reseted the phone. So, now I can't access to all my photos because android tells me that I have to format the sd. The problem is that I really need to recover all my information. Is there any way in which I could unlocked the sd?
I'll apreciate your help since I am really desperate and nobody can give me any solution.
Thanks.</p>

Title: Micro sd locked internal storage


问:
Any way to view or download Google Hangouts Call History?
The Android Google Hangouts Dialer app is very limited when it comes to VoIP call history. It only shows the last 100 (approx) calls, even though Google keeps a complete history. For calls made more than 24 hours in the past, it fails to show the time of day the call was made.

Is there any way to view or download the call history for the last several months for calls made via the Android Hangouts Dialer app, including the time of day each call was made?

I don't see any way to perform this essential task in the app or the Google Hangouts web site.

If that is not possible, is there a way to download any of the call history?


问:
Why android explorer gives only empty folder when backing up?
I am backing up my xiaomi redmi note 3

These is the screenshot

Then I create backup

It may be related to

https://android.stackexchange.com/questions/138954/cannot-take-adb-backup


问:
How can I save a word document (from Word Android app) to Google drive?
There are options for OneDrive and Dropbox, but I can't save to my Google drive account, why?!</p>


问:
Change map language on Google Maps
I have Nexus 7. I'll be traveling to Bangkok in a couple of weeks, and would like to change the Google Maps app to display street names in Thai just in case I get lost and need local help, and also for the benefit of the taxi drivers, who may not be familiar with my destinations

Is there a means of switching back and forth the language used on Google Map App?

Title: Change map language on Google Maps


问:
Where is CM's Appollo's favorite playlist stored, can I export it?
I've been using CM's Apollo as music player and it's doing it's work perfectly, but i'd like to export my favorites (play)list to my PC.
With BlueMuze i can export my self made playlists in .m3u format to SD which works great, but the favorites playlist doesn't show up in BlueMuze because of the fact that either it's location is somewhere else-, or it is saved in another format. I think the favorites list is just a playlist like any other playlist, so then the solution would be very simple, duplicate it and place it in the location next to the other playlists. The point is that i have no clue where Apollo stores it playlists.
I have found a file 'favorites.db' in /data/data/com.andrew.apollo/databases
which contains all my favorites, but other playlists are stored somwhere else.
If i know where, it might be the solution to my problem.
I was hoping you guys could help me with this, i'd be very thankful!

Cheers

Edit: there's ample info about how to export playlists, but thats not the case here since a music players favorites list is not a standard playlist. playlist export apps can't find/recognize this list, so please don't mark this as duplicate, thankyou


问:
Frustrating Android Autocorrects - OK, CE, SE
My Android MotoX frustratingly auto corrects in the following ways...

```<code>some -> SE
come -> CE
ok -> OK
</code>```

I've had a look through my Settings > Languate & input > Personal dictionary both English (United States and For all languages and have not found ANY entries for these.

I've tried creating an auto-correct entry so that 'ok' would be autocorrected to 'ok' (lowercase to lowercase) but that didn't work.

These terms are so generic that google searches are near useless.

Does anyone know how to fix this? I've heard that Clear Data in Google Keyboard's App info would do it, but I have my doubts and would rather not lose all the legitimate auto-corrects I've stored.

OwnerDisplayName: Chris Geirman


问:
Unknown device on Play Store
Something very strange happened, I was trying to install the Steam app and my LG device disappeared, a different device I never seen took it's place: Telstra Samsung SM-G900F. The first device is my tablet, but the second one is completely alien - Telstra is Australian and I'm in Brazil.

Has anyone seen something like this, how can I make my phone appear back in the list?

Title: Unknown device on Play Store


问:
Get package name of an app given its displayed name using ADB commands
I'm trying to:

Get the package names of all apps on my device (none of them are mine so sadly I can't get it from the Manifest) and put it into a file to save for a class project.

I also want to get the package names of only a select number of apps that I choose that I have on my phone. I was hoping there is a way to do that so that I don't have to manually look and copy over from all the different phones I have

Is it possible to get the package name of an Android app by its name using ADB when testing my app on my phone? Maybe by using aapt?

E.g. "ColorDraw" will return com.package.name.drawcolors.


问:
How to restart a system app from the command line?
After deploying a new APK for a system app, is there a way to restart the app process without rebooting the device?

Non-system apps are managed with the Activity Manager through the am command. There are options like start, restart, force-stop, as well as commands against services, like startservice or stopservice.

I have mainly read and tried around the Activity Manager, and I am missing something. Right now, I just rely on the time-consuming brutal reboot command. Posts on installing system apps also use reboot only, as far as I found.

Great and timely feedback mention the very commands I tried, but when they work, they are in "force" mode. I did not check the source code, but it usually means something akin to kill -s SIGKILL, and I wonder whether that is really necessary to go that far.

Some sample outputs (thanks everyone for comments!):

(note, I have indented the command output for readability)

Restarting with restart

```<code>$:/ # am start com.android.email
    Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] pkg=com.android.email }
$:/ # ps | grep email
    u0_a30    1436  117   705400 32128 ffffffff 4006b954 S com.android.email
$:/ # am restart com.android.email
    Restart the system...
    android.os.DeadObjectException
    at android.os.BinderProxy.transact(Native Method)
    at android.app.ActivityManagerProxy.restart(ActivityManagerNative.java:4647)
    at com.android.commands.am.Am.runRestart(Am.java:1410)
    at com.android.commands.am.Am.onRun(Am.java:308)
    at com.android.internal.os.BaseCommand.run(BaseCommand.java:47)
    at com.android.commands.am.Am.main(Am.java:78)
    at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
    at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:243)
    at dalvik.system.NativeStart.main(Native Method)
$:/ # ps | grep email
$:/ # #=> Process was killed anyway
$:/ # am start com.android.email #=> Works again, but the previous error...
</code>```

Restarting with force-stop

```<code>$:/ # am start com.android.email
$:/ # ps | grep email
    u0_a30    2680  1506  706404 31668 ffffffff 40059954 S com.android.email
$:/ # am force-stop com.android.email
$:/ # ps | grep email
$:/ # #=> Process killed
$:/ # am start com.android.email #=> Works again, but it was *forced* kill!
</code>```

Some context and idiosyncrasies: My particular case is a custom system app (in /system/priv-app) that exposes a service, no activity. I am used to rely on am startservice and am stopservice to manage non-system processes. It does not work properly for system apps (read: "I don't know how to do it" :-) ). All this is on Android 4.4.2, API level 19.


问:
Can I transfer WhatsApp messages from Iphone to S5 when the WhatsApp software is already activated?
Every one tells me to activate the WhatsApp account only after the transfer of the file have been done. In my case I have already activated the WhatsApp account.

How can I still transfer the file in?
Thanks


问:
Where are the Downloads stored on an LG Nexus 5x?
I'm trying to transfer the contacts from my old phone to my new Nexus 5X.  I exported the contacts to a .vcf file and used adb push to copy the file to the Nexus 5X in the /sdcard/Download/ directory.

Unfortunately, when I use the "Import from .vcf file" option in the contacts list and look at the Downloads section all I see is a PDF I downloaded from Lego.com.  This .pdf is not visible in /sdcard/Download, and I can not find that .pdf anywhere in the filesystem using find / -name '*.pdf' -print 2> /dev/null from an adb shell.

Where should I put the .vcf file so it is visible in the list of Downloads used by the contacts activity?


问:
HTC Desire keeps restarting every 30 seconds
My HTC Desire is 2 years old. I have had numerous issues over the last 2 years between random freezing, unmounted SD card etc.. But now my phone will start, stay on for 30 seconds, and then shut down. It does this over and over. I have tried the safe mode. It does the same thing.  I tried Recovery Mode, to no avail. I have tried removing the battery for hours, no effect.  I did not recently update any apps.  I did not recently add any apps.  It literally began doing this out of nowhere in the middle of my day. I can access anything on the phone as long as it is within 30 seconds, then the phone restarts.  </p>


问:
Restart touch screen without rebooting phone
Occasionally my screen becomes completely unresponsive to any touch event. Possibly some lower level touch screen driver crashed (?).

Is it possible to only restart the touch screen system without rebooting the entire OS?

I am using a Nexus 6P and have root access.


问:
Android 5.1.1 shortcuts
I have a new tablet with Android 5.1.1. I am trying to create a shortcut on the home screen by copying a Web page from the Internet Bookmarks.  This was a simple procedure in 4.1, but there is no "Create Shortcut" option in 5.1.1. How do you do this?</p>

Title: Android 5.1.1 shortcuts


问:
Make Titanium Backup work across multiple user accounts
I'm using CyanogenMod 12.0. I have installed Titanium Backup in primary user account.  I have an another user. I tend to let the other user have apps like Facebook, WhatsApp, some games, etc., while letting the owner for maintenance of the device.

The owner has root access while the other user doesn't, so I can't use Titanium Backup as the other but I need to make backups of the other user's apps.  Titanium Backup only lists the apps installed under the primary user account.

So, how to make backup of apps installed in a secondary user account, using Titanium Backup?

Note

I know there exists other backup options but I want to use Titanium Backup (one day or another I'll have to).

If there are other ways besides "using SuperSU instead" I'd appreciate it.