问:
Samsung j5 won't connect to wifi
My Samsung won't connect to wifi anywhere. A few days ago a message came up saying something about third parties, monitoring and being able to access app data. Ever since no internet with wifi or data. Everything else seems to be working well.

Appreciate any help, thanks.

Title: Samsung j5 won't connect to wifi


问:
Android phone won't boot up after rooting
I did rooting for the first time on my device
MICROMAX UNITE 3
model: Q372
I installed SuperSU and granted the permission to it to become superuser and thing is I haven't done any data recovery using CWM or TWRP .Next thing I did is rebooted my phone and I got this black screen of death .
So what did I do is pressed the volume up+ power button to go into recovery mode and it shows that no command with a dead logo. Then I pressed powerbutton + menu button(down)  and got this

I wiped cached partition ,nothing happened still black screen.

there is no recovery of TWRP / CWM .

no update from adb.

I am stuck with black screen , what should I do?

ContentLicense: CC BY-SA 3.0


问:
Android Device manager not working properly
I have a Samsung Galaxy S6 updated running 6.0.1. When I go to Android Device Manager I can locate my device, and it works fairly well. However if I try to use the ring function it doesn't work properly. I get a notification displaying "Ringing...", but there is no sound or vibration. My device is not on silent mode, even though ADM is supposed to bypass that.

What could be the cause of this issue?

Edit: To clarify, I get a notification on my phone that says ringing, but it doesn't ring.


问:
Hardware key combinations to enable/disable TalkBack
I have found the following gestures out options I the TalkBack settings:

I want to be able to get the double Coyle up and volume down long press key combination to toggle TalkBack on or off.

This is very useful.

(but it is grayed out)

Hopefully using it won't trigger the volume change if the user is clumsy and asynchronous presses both keys.

Thanks.


问:
Lollipop/ART - how do I manually optimize APK files?
I've asked this question before. After checking out logcat, it seems that the OS is looking for the odex files. I've checked the odex files of other system apps on my ROM, and it turns out they're ELF files.

For the ones asking, these are bytecode files produced by ART (dex2oat, I'm not sure).

I've observed that these files get generated on boot (Android is Starting: Optimizing App XXX of XXX).

For some reason, my phone's ROM doesn't run the optimization part. Instead, the oat files are already pre-generated and stored on the system partition. As a result, the apps that I want to pre-install don't get the oat treatment and crashes when I launch them (ClassNotFoundException since the oat files don't exist.)

How do I manually run the app optimizer? If it comes down to using the command line, how do I use dex2oat without root access/on a Linux PC?


问:
Recover files from internal storage in Download Mode
I have an unrooted, unencrypted LG G4 that decided to randomly turn off and not boot up again last night. Upon booting into normal mode, the LG logo appears for a long time (longer than usual) and then disappears. If it is plugged in, Windows will detect it as an "Unrecognized USB device".

I can currently boot into Download Mode where it shows a "Firmware Update" screen. LG Bridge seems to recognize the device in Download Mode but I cannot mount it as a drive or anything. I have tried both Windows 10 and Linux.

I installed adb on my computers but upon running adb devices it does not seem to detect anything.

Is there a way to recover data from internal storage? I don't care much about the Camera folder or contacts/SMS as those were backed up automatically, but rather the folder I was using to transfer files between PCs.


问:
My Always On Display doesn't deactivate at the set time
I have turned on Always On Display for daytime only, but the screen stays on after the end time (midnight) just displaying the clock, as it does during the day. If I manually lock the phone (Samsung Galaxy S7) after the end time it works as expected (the screen turns off) and Always On Display turns back on by itself at the right time. Is this fixable?

I have tested this with an end time after the start time and before midnight and it works properly. I haven't yet tried setting the end time to after midnight and before the start time to see what that does. So far I can only confirm that the issue happens with an end time set to midnight.

EDIT

I have tested various settings and this issue only happens when the end time is exactly midnight. It seems that it gets confused about which date midnight is on and does nothing. The workaround is to set the end time to 11:59 pm or 12:01 am. It looks like a simple bug and not user-controllable.


问:
Cannot get rid of CM10 / cannot reset the device (Samsung Galaxy Tab 2, GT-P5110)
Samsung Galaxy Tab 2, GT-P5110
Android version: 4.2.2.

Hi there, I have a rooted device running on CyanogenMod 10.1.3-p5110, with a custom recovery CWM 6.0.2.7
After 3 years (or so) of smooth operation it started to slow down and getting unstable from time to time, so I decided to factory reset.
I did the factory reset from CWM following the regular regular instructions, however after reset completion the devices booted back to the original CM10, with all the original data (nothing was cleaned at all or reset). I tried several times from - cleaning cache, date, system, dalvik cache, factory reset ... still the same result.

I also tried to replace the CWM with TWRP (GT-P5110_TWRP_3.0.0-0.tar.md5) - same result, it shows success but if I restart to recovery, it goes to CWM 6.0.2.7

If I boot into recovery (CWM) and flash any rom, it shows success and then reboots (guess what) into the original CM 10 like nothing happened.
I tried to flash the stock firmware using Odin. I got an original firmware "P5110XXDMI1_P5110OXXDMJ1_HOME.tar.md5" from a reliable source (http://www.sammobile.com/)

Model:GT-P5110, Model name:GT-P5110, Country:Czech Republic, Version:Android 4.2.2, Changelist:1709803, Build date:Wed, 18 Sep 2013 06:13:11 +0000, Security Patch Level: N/A, Product code:XEZ, PDA: P5110XXDMI1, CSC:P5110OXXDMJ1

Every time I flash the original stock rom with Odin, the ID:COM box in Odin goes green and everything looks just fine but after reboot the tablet restarts to the original CM10. I was using Odin3-v1.85, as well as newer versions of the tool - namely Odin3_v3.07, Odin3_v3.11.1, all with the same result.

I even tried form very scratch - repartitioning the device using a .pit file "signed_espresso_20120220_16G.pit", flashing stock using Odin, same result.
I also tried flashing rom Heimdall Suite - same result

I have no problem to connect to the device using ADB shell and communicate with the device ... to get the partitions details using these instructions How can I view the Android internal partition table?
However, I am not any Android guru, so I cannot "decode" what I get.

To me it seems like I somehow messed up my partitions or mounts and thats the reason for the strange behaviour.
So now I am stuck in strange state, which I cannot call a bootloop ... seems like I am running some sort of cached system or someting and I am unable to get out of with any standard tool available. As I said ... device is rooted, running CWM and I can boot to any mode I want ... download, recovery, system.

Any help will be more than appreciated.


问:
Samsung Galaxy S5 Won't Update
Every time I try to update my Samsung Galaxy S5, it says I don't have enough storage. One day, I cleared enough storage and proceeded with the update. However, I walked a way to grab something and when I returned, it said the update failed. I have AT&T, and when I looked online for solutions to this problem, AT&T was common in most of the issues.
Also, my current Android version is Lollipop (5.0), and, at this time, the newest is Marshmallow. How can I fix this?

If you need any more info to help, just ask.

Thanks in advance!

Title: Samsung Galaxy S5 Won't Update


问:
Nexus 6P can't be kept charging
When I charge my Nexus 6P, the charging often stops (probably after the battery level becomes 100% once.) and it keep consuming power.

As a result, when I unplug the cable, it has often low battery or already shut down although I expect it is fully charged.

Is it well known issue?

Title: Nexus 6P can't be kept charging


问:
Exposing Ports on Android with React-Native
I'm trying to serve files from a React-Native app. Im using react-native-tcp module but when I create a TCP server it isn't on a nmap output over the mobile device ip address. I've tried with an external client with nodejs but I get ECONNREFUSED. At the same time, If I try with a client inside the react-native app and an external server, I get the same result.

I don't know if there's a protection or the module doesn't work properly. I've also the android.permission.INTERNET in the manifest.

Also with curl command:


问:
Execute "adb tcpip <port_no>" command without using USB even once
I am trying to create a backup of all applications in Android, but I don't want the users to connect to USB even for the first time.

Let me first explain what happens when we connect our phone with USB to ADB client:

USB Debugging mode is enabled on the phone

The phone is connected to a PC using a USB cord. adb tcpip 9999 command from cmd with ADB already installed. The command helps now switched the ADB daemon (adbd) inside the Android phone to listen through TCP/IP protocol

Now we can disconnect the phone from the PC

Using a terminal emulator application, we can now fire the commands

adb connect localhost:999

backup -all -f /sdcard/dev/bck.ab

Now a backup pop-up will open up, you can simply click the backup button. Now we can anytime execute the command in 4.1 and 4.2 until the user restarts the phone, but the problem is I wish to execute adb tcpip 9999 without PC

Can someone suggest to me how to approach this problem? From where should I start reading, or is there some existing application that can do this on a non-rooted phone?

ContentLicense: CC BY-SA 4.0


问:
YouTube Offline Playlist
It has been a while since I am using the YouTube's offline video feature. But there is one thing which is annoying me off late.

I have set of YouTube videos saved for offline view, and it seems YouTube app in android add all of them in Play List. I did not created this play list manually. But as soon as I add a new video for offline view, YouTube app automatically add it into this so called Offline  playlist.

The issue is, when I play, say first video from that offline play list and when it is over, app picks up another video from offline Play list and plays it. I don't want this to happen.

I only want to play just 1 video and when it is done, app should just wait, instead of picking up a video from play list. This is how YouTube itself work, when it is not playing offline videos. It waits for user to pick the next video.

I don't want to adjust the sequence in which these videos are played. I want to play only single video at a time from that Offline play list(which is really created automatically by YouTube).

YouTube app version is 11.13.56

Is there a way?

Title: YouTube Offline Playlist


问:
Read raw video stream from Android box HDMI input
I am writing an app for android boxes (not Android TV), that have HDMI input port.

Is it possible to read raw video stream from HDMI or USB input and display it in android videoView ?

Here is the link to the android box I am using. It uses API level 19 (Android 4.4).


问:
How to fix System UI error crash in landscape mode
I get a pop up "Unfortunately, System ui has stopped" with Report and OK option. It happens whenever I changes my screen orientation to landscape mode.

Everything works fine except I am unable to change screen orientation.

I have Micromax Canvas A1 AQ4502 running stock android 6.0.1.

I have tried updating the android, clearing the cache, and resetting the phone to factory settings but I am still getting the same error.


问:
Empty `IMG_YYYYMMDD_HHMMSS` folders in `DCIM`: What are they there for?
I have empty IMG_YYYYMMDD_HHMMSS folders in my DCIM folder, each of them having a corresponding IMG_YYYYMMDD_HHMMSS.jpg photo (but there are some photos that don't have an associated folder). What are those there for and can I safely delete them?


问:
Remove down voted songs
When putting music on my phone, I blindly added some albums, but I don't necessarily like all of the songs on the album.  My solution has been to simply down vote the songs I don't want as they play.

I know realize that those songs are still on my phone, just taking up space.  Is there a way to find these songs easily so that I can delete them?

I've tried using a playlist manager to create a smart playlist, but rating wasn't a filter option.

Title: Remove down voted songs


问:
AOSP nexus 10 android 7 nougat options?
I'm currently running an early AOSP build of android 6 on nexus 10. What are the aosp options for android 7? I'm not talking about a custom ROM like cyanogenmod. I mean one as close to AOSP as possible.</p>

Title: AOSP nexus 10 android 7 nougat options?


问:
Suppress calendar audible reminders at night? (HTC M10)
By default, when an all day event is set for, say, Tuesday, at 11:50 PM on Monday, your phone goes "ding" to remind you.

If you phone is your alarm clock, and by your bed, you have now been woken up in the middle of the night, for nothing.

How to control/manager?


问:
How to get root priviledges on ZTE Grand X Max 2?
This is a newer model with Cricket and I found no recovery image (CWM or TWRP) to flash yet. ADB-fastboot connection is achieved but only basic commands work (I just learned this stuff yesterday). I have not achieved the "white" screen of the bootloader, only a reboot to Android. Though I can get to the recovery menu this way and with volume up/power key combo. (I wouldn't know what to do next anyway at this point). There are some great solutions out there, but this model is not on their list. I've researched "one-click" download sites and poured through lots of Xda forums. It looks like a waiting game for a flash/root combo (TWRP and SuperSU). Now I'm looking to find the root files (su binaries?) to push into this model?</p>


问:
ROM 6582 (8382 is fake)
I have a tablet with android 4.4.2. That stayed without recovery, and hard reset doesn't work ( does nothing, don't delete anything, don't restarting anything)

I try to install cwm, and twrp with  uncletools, and mtktools . They also don't work .

Y search any recovery stock and nothing

Y search any recovery custom but any work (or I don't know who to install)

Please I need a stock rom of my tablet or recovery secure

Or any idea, any help

Title: ROM 6582 (8382 is fake)


问:
Google Keep notifications are delayed on Samsung Note 4
The reminders set in Google Keep are not displayed in time. It happens after the time has passed. I have power saver on and with limited background apps. Is it the reason?</p>


问:
Google contacts missing on Android
I originally solved a calendar sync problem using a post in the forum by deleting Google account and then adding. The calendar sync worked, but I realized I was missing all of my google contacts. After trying some things I still have no contacts (have restored them on my laptop so they are showing there) and now I have a sync error on both contacts and again in calendar with nothing showing in either.</p>

Title: Google contacts missing on Android


问:
Can't connect to Play Store. Which app keeps modifying my "hosts" file?
So I am using a rooted Galaxy S6. I am familiar with the hosts file in the Android system and how it works. I modify the hosts file to block ads every once and a while.

Recently, I haven't been able to connect to the Play Store. When I looked this up, I find out the "hosts" file has been edited. I see this line: 127.244.77.91 android.clients.google.com.

According to the Internet, the solution is to simply put a hashtag to exclude that server or whatever. But even when I do that, the same entry is added below the one I excluded!

Which app keeps modifying the hosts file? Is it the Google Play Store? Is it Google Play Services? What about the Google Play Services Framework?

How can I prevent the hosts file from being edited without my permission?


问:
Get back lost picture after flashing ROM
I'm guessing I know the answer to this but still wanted to ask. I picture got deleted and I would like it back. It was taken with the stock android camera. I flashed a new ROM and that's how it got deleted. It was the picture for the Owner profile/user/account. Any way to get it back?</p>


问:
Is it possible to detect via adb if a certain app crashed (and restarted)?
In my tablet Google Play Services crash every often. They do restart automatically.

I'd like to know if it's possible to programmatically discover via ADB whether a restart happened or not.

I tried somehow by looking at the processes with

adb shell ps | grep com.google.android.gms

but I wasn't able to realize
anything interesting - like when the process started, so that I could compare it with a previous poll.

Thanks


问:
Where does Firefox keep browsing history data?
This linked question describes how to find the time a file was downloaded in Android for Mobile.

How does one do the same for browsing history?  What file is that information stored in?


问:
Does the user profile picture get synced anywhere?
In Android Marshmallow, does the user profile picture get synced anywhere? If yes, where can I find it, somewhere in G+ maybe? By profile picture I mean this (image copied from http://forum.xda-developers.com/android/help/android-5-0-lollipop-user-profile-photo-t2939546)


问:
Menu/Recent apps SM-G935W8
I wonder if there is a way to get the menu button on the recent apps button. If you don't understand, I want to have the same thing as the gt-i9195: long press on the home button opens recent apps; press on recent apps button opens menu.</p>

Title: Menu/Recent apps SM-G935W8


问:
Is it the hardbrick. Phone is not turning on neither by forcing it by pressing vol up,down and power button
I have flashed a stockrom downloaded from the internet from the given link to my qmobile z10 mtk6753, using SP flashtool
https://docs.google.com/uc?export=download&confirm=45sO&id=0B_Wm2RQP1PtfcnVpaG1oVmhPLTQ

and it was successfully flashed into the phone by a tick mark. after that the phone doesn't turned on by pressing the power button neither by forcing it to be in the selection of recovery or factory restore options by pressing vol up vol down n power. now what? is it hard bricked?
Not turning on. just black screen. no boot logo, no recover or factory reset etc nothing.

Now when ever i connect the phone with the pc. it doesn't recognize the phone despite all drivers have been installed already. and gives unknown device. when i opened the device manager it gives this "Unknown USB device(Device descripter request failed)". I have googled it and found some solution to this generic problem by changing the power options etc and all the solutions on the internet. but it remains the same.
Is there any solution to this problem is it the hard brick? if it is how can i overcome this problem.?
thanks in advance


问:
How to display photo locations over the top of the photo?
I have a friend with a Note 4 who wants to display the location information of his pictures overlaid on top of the image itself (rather than go to Details to view the extra info). He saw another person do this on a S3. Couldn't see anything obvious to do it on his phone. He basically wants it to quickly go through photos and remember where they were taken, rather than going into individual photos 1 by 1.

Apologies, I'm not too familiar with Android, so not sure if I'm describing this correctly.

In particular we're looking for something that generally looks like this overlay http://i.stack.imgur.com/I9B9O.jpg (found from Can't view Location (textual desciption) information in Windows when opening picture taken with Camera app )


问:
Is it possible to put a password to let usb debugging work?
So, I learned that, if we have a broken screen, but had the usb debugging enabled, we could do a lot of things, and even use its apps from a desktop computer, until we can get it properly fixed.

But, also, if my phone gets stolen it just sounds like doom to me...

The alternative I thought was: keep usb debugging enabled, but limit it completely, requiring some kind of password or trick to let everything else work.

Is it possible to do that? and how?

I understand this question complements this one.


问:
CM13 Transparent lockscreen not working
I have oneplus one with the latest built of cyanogen13.1 but here is a problem, my live lockscreen which shows blur background of the recent app that is opened is not working. I just showing the regular wallpaper on the lockscreen. I tried everything but non of it seems to work. </p>

Title: CM13 Transparent lockscreen not working


问:
unknown sources turns back on about every 24 hours
I'm having to turn off unknown sources everyday. I'm on 5.1. Not rooted. Never installed anything except from app store. Eset Av says phone clean. Root checker says not rooted.
Had phone from new. Bush/archos b2.
An app called My Apps appears daily too.
It isn't in my account on play store.
Not sure if it appears in apps/downloads. I'll check when it next appears.
Malware? Bloatware?
Anyone seen this?</p>


问:
How to check adb commands executed on an Android device without executing them?
In my city recently smart benches were added to some parks. They have WiFi, heating, cooling, wireless charging and USB ports.

They're really cool and stylish, but when I plug my phone in to charge it they ask for the ADB key, which makes me think it is executing some malicious code.

Is there a way to see what are the benches doing to your phone over ADB without actually running the commands?

I have access to a Windows 7 laptop and an Android 5.1.1 device.


问:
How to replace local camera video stram by a remote one
I want to make the facebook app stream my laptop screen (as live video), my idea is to change source stream of the phone camera to a remote stream from a laptop, any idea on how to do this (with an app or programatically)?</p>


问:
How to obliterate (totally delete) a contact?
I have android devices with WhatsApp and another apps. When I try delete any contact, sometimes in the next days the contact backs to my contact list... In the end, I need most of times block the contact on WhatsApp to avoid use it. I think that some app is recovering/syncing the contact back, but I updated the Google Contacts, removing the contact and he keeps returning...

This is the reason why I use the term "obliterate", I see when learning source control... When you delete a file from source control, it is deleted, but you can recover from the history/previous commits. So when you want fully delete, you want "obliterate" it, pretending like it never existed...

I wonder if can have 5 options for deal with this:

Some option on Android to obliterate (I search but not found)

Some app with that option or that objective

Some app to monitor and block the contact to back to list

Some app to monitor and discover the app that is recovering the contact

Some app with the job of maintain the master list of contact, and from there I delete it and the app keeps "deleted", monitoring the contact list changes

Thanks in advance!


问:
Samsung GSII-GTi9100 with CM12 - no USB connection
I have installed CM12 from SDCard.

Device is running fine. It charges normaly from usb socket. But I need to access developer options and run code through ADB.

I have ADB set up on my ubuntu16.04 machine and have tried every option to enable USB debugging. I have added the OEM code to the adb_usb.ini file and have created the 51-android.rules file at the sugested places. However, my phone refuses to make the USB connection to the computer. I enable developers options and usb debugging. Connect usb cable to device and computer. I go to Settings>Storage>Overflow(...)>USB connections and phone responds with a single "USB not connected" message.

LinuxPC-side:

```<code>$ adb devices
List of devices attached

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:07dc Intel Corp.
Bus 001 Device 002: ID 0bda:5776 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
</code>```

I think my phone is the culprit because other devices connect fine, so I know its not my cable or my computer. Maybe I missed a step on the configuration for ADB? Can someone lend me a hand?


问:
Hidden files: Can I delete them?
I can see some hidden files on my android device, named as {[HIDDEN]}xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.mp4_encrypted_new (file name length is 32 characters long, in the place of x, actually it is mixed with alphabets and numbers, so I described it as x. And, in the place of HIDDEN it is hidden itself ). It stores about 1.08 GB in external memory card. Can I delete them? Any problem after that?

Title: Hidden files: Can I delete them?


问:
Access Internal Storage without internal SD-Card
In Marshmallow you can format SD-Cards as internal. Android then merges the Internal Storage and the SD-Card Storage. If the SD-Card is removed, the internal storage can’t be accessed without inserting the Card again.

My SD-Card is corrupted (so android says) and can’t be mounted. Windows is able to access the Card which is mostly empty. Some standard files Android created are on there, the data is gone. Deleted Data on the SD-Card has been partially restored with appropriate Programs.

This leaves me without a possibility to access the files on the Internal Storage. However the files still seem to be there. When I accidently re-downloaded a file, chrome asked me to override that file. Either chrome can still access the files in the download folder (however downloading new files does not work, so it might be read only). Or chrome keeps a separate list, detecting duplicates before it accesses the storage.

Things that don’t work:

- Using a file Manager to access /data or /storage/self (Solid explorer sends an “Access denied” error)

- Connecting the Phone to a PC via MTP (Does not display any storage)

- Using an Android data recovery Program (Wondershare) does not display any relevant Files.

- Repairing the SD-Card using Windows, as Windows does not detect any Errors

- Using ADB pull (0 files pulled for /data, special files skipped for /storage/self)

- Using ADB shell (“Access denied” as expected)

Things that might work:

- Telling Android the SD-Card is not coming back (“Remove internal SD-Card”):

I can’t find any information on how Android is going to handle this. Maybe this will result in reformatting the internal data partition. The dialog states that data on the Card will be lost, however it doesn’t talk about internal Data. In case of data loss it might be a good idea to have a good recovery program installed as installing it afterwards might override Data. Kind of the last resort.

- Trying to root the Phone without wiping the data partition (tethered root). I’m not sure I will have access to the folders. Wondershare uses tethered root and does not display any pictures ect.

- Repairing the SD using Linux. However I don’t have a suitable machine at hand.

- Physically soldering to access the storage (I’m not doing that)

Maybe some of you could shed some light on the way the data is stored/ access is blocked / root affects this block or faced similar problems already. Any ideas are appreciated.

Thank you very much!

Device: Moto g 2015 running 6.0.1


问:
Screen after Bootanimation
<img src="https://i.stack.imgur.com/XFL75.jpg" alt="enter image description here">What is the name of screen that shows after bootanimation ,splash screen ?
Android is upgrading box. How do i change logo like custom roms (ex; tesla rom) where do i find them ? </p>

Title: Screen after Bootanimation


问:
Lenovo Yoga tablet not automatically connecting to wifi
My Dad has a Lenovo Yoga 2 tablet running Android 4.4.2

He is encountering a problem whereby, if the tablet is switched off, it does not remember WiFi passwords and he has to input the password each time he restarts the tablet. This is true of both his home WiFi connection and other ones, so I assume the problem is with the tablet rather than the router. This is a new issue and he says that it just started happening without an obvious cause.

I have the same tablet with the same version of Android. I have gone through the connection settings on mine and compared them to his, but nothing seems obviously different. However, I am no expert myself so am not really sure what I should be looking for. Forgetting the connection and reconnecting doesn't work.

Any suggestions to fix this would be much appreciated!


问:
Cannot start into recovery
I did have dual recovery but after bricking the phone had to flash new FTF file. Ever since, I am unable to reboot into recovery. I've tried turning on the phone and pressing the volume up and volume down buttons but it just starts normally. I tried adb reboot recovery same thing. I have root on the phone. I also tried flashing a new recovery through adb but it fails with an error message.

Title: Cannot start into recovery


问:
How do I fix Helium backup/restore over Google Drive?
I am trying to back up all my game saves to Google Drive using Helium. I can backup a few game saves, but eventually I receive this error:

```<code>Backup Error
An error occurred while performing your app backup. A log of the error has been sent to ClockworkMod.

Click Backup to attempt to backup the remaining apps.
</code>```

To fix this, I either clear the cache of Helium on my old phone or reinstall it, which seems to fix it.

If I try to list all the backups I have in Google Drive on my new phone, I occasionally get:

```<code>An error has occurred while retrieving your app list.
</code>```

Once again, I need to clear the cache or reinstall to fix this.

When I can actually try to restore, many apps get stuck on a set percentage such as 93%, and then gives me the same message as above except "Restore Failed".


问:
Limiting google contact sync only for upwards sync
```<code>Device: Galaxy grand duos GT-19082
Running OS: CM 13 (Android 6.0.1)
</code>```

Is there a way that I can disable my contacts Down Syncing with google, keeping Up syncing enabled?

Elaborating the problem, I always customize my contacts by adding their contact images (which often gets replaced by their google plus profile pictures as google syncs my phone contacts with google) and removing some extra fields like Google plus account, Also I don't like all the email id's(without a name or number) whom I have e-mailed once getting synced to my phone.

But I would like to keep the uplink to Google, so that all the contacts are backed up there. I just need to break the downlink ("Downsync" which I referred above)


问:
Why setting a 1x1 pixel wallpaper fails on (a few) Android devices?
To set a black or solid color wallpaper on an Android device, one can use a tiny 1x1 pixel image with the pixel set to that color. This works on most Android devices (including Nexus devices and others that run stock Android). The system knows how to fill the entire screen with that one pixel, giving you a full solid color wallpaper.

However, there are some Android devices that give an error immediately after setting the 1x1 pixel image wallpaper:

Unfortunately, System UI has stopped.

Unfortunately, Home has stopped.

Trying slightly larger image sizes (2x2, 3x3, 4x4) also fails.

I just created an open source Android app to test this issue: Minimum Wallpaper. Its source code is available on GitHub.

So far I have a report with screenshot that on Allview P8 Energy the minimum wallpaper size that works is 32x32. From another project I'm involved in, I have some information that a 1x1 wallpaper also fails on devices such as:

LG: G5, Stylus 2

Meizu: m1 note, m2 note, MX5, Pro 6

My questions:

What could be a reasonable reason that (only) some devices are giving errors after setting a 1x1 pixel wallpaper?

What could be the minimum "safe" wallpaper size that should reasonable work on all Android devices?


问:
Problem with earphone jack
I am really afraid of this, but please help me. I was trying to insert the 3.5 mm jack into the slot, and it just stopped midway. All of a sudden. It didn't happen yesterday. I was afraid if something had gone into it. I tried to shake the phone in order to make it come out with no success. With a little harder push, I succeeded and it went inside and the earphone is working fine, and the phone's loudspeakers too. Is something that's wrong? I am afraid. Its my new Moto G4 Plus, and don't want to replace etc. Please help.</p>

Title: Problem with earphone jack


问:
Mobile data disabled notification
After upgrading to marshmallo i get that notification (mobile data is disabled) ,when i swipe it , it appears again,  for sure I know that mobile data is disabled ,i use mobile data rarely. It keeps bothering me.
How to stop it</p>

Title: Mobile data disabled notification


问:
Proof for the application XYZ is never installed on a non-rooted Android phone
With adb, we can list the applications. In the documentation, the -u option also lists the uninstalled applications. I'd tested and this is not working!

I need at least one way to prove or at least convince someone that in a non-rooted Android phone the XYZ application is never installed!


问:
Removing unused google apps
I installed a custom ROM and flashed Open Gapps Aroma. I was excited by the options to remove or exclude various features I never use (such as Google's calculator, Google Books, Google's clock, stock wallpaper etc) but unfortunately the installer had a bug and would only work if I installed everything.

How do I completely remove google apps that I don't need?

Title: Removing unused google apps


问:
Nexus 5 + TWRP: Booting to recovery works about 40% of the time
I have a Nexus 5 with TWRP as my recovery.

I've encountered and issue over the past few months.

When I reboot to recovery from the OS, or from Fastboot, it'll stay at the boot screen a bit longer than usual, but then boot the OS as if I didn't try to get to recovery.  I can usually expect this 2-3 times and then it'll boot into recovery correctly like nothing happened.

It's been across multiple versions of TWRP and I've reflashed the current one a few times to ensure it wasn't something along those lines.

Booting to fastboot always works, it's just booting to recovery where I see this.


问:
Is eMMC backup sufficient to restore NVRAM?
Android flashing/backup guides often mention that NVRAM stores IMEI, WiFi MAC, etc., and that loosing it is real bad thing.

What bothers me is following:
NVRAM is, judging by name, RAM, so it sounds like it's not on eMMC. On the other hand, all the backup guides I found make me think that it's not true, at least not entirely.

So my questions are:

If I simply dd my phone's eMMC, will the resulting backup be sufficient to restore NVRAM?

Is it sufficient to just dd this backup back to eMMC?

(bonus) On average modern phone, is there any firmware/etc. that is not stored on eMMC and can be accidentally corrupted? (i.e. not counting e.g. eMMC's own firmware, which is hard to reach in general, even more so accidentally)


问:
Can't make SD Card as internal storage
I wanted to make my Samsung  as internal. I went to Storage and USB and selected Erase and Format option to make it as internal.
After formatting it to about 40%  message popped up. I selected OK and then opted to move on. Then I selected Move Now when it asked me my permission to move my data from internal to this. But then just after that  message popped up. Now right after I press OK it goes back to the option to Move Now and it all goes in a loop.
Also SD Card is always shown corrupted after the process.

Please help me. I have restarted my phone multiple times now and even tried to format it first in my computer and then go through the process, but I got the same results.

Title: Can't make SD Card as internal storage


问:
Can't edit files in /sys/ folder
Is there any way to edit files in sys folder? I want to do that because buttons backlight on new rom is off, probably because I turned it off on previous rom and now I dont have backlight buttons settings.</p>

Title: Can't edit files in /sys/ folder


问:
Speaker sound has too much high frequencies and is too much compressed
I listen a lot to music with my Samsung A3, and the sound is totally ok with headphones (thus no strange software effect applied to audio out), but when listening with internal speaker, I notice:

too much high frequencies (between 5khz and 20 khz), it nearly hurts the ears with high RMS-dB songs, even if I reduced the high freq as much as I could in the Music Player app's EQ

it's like some high dynamic range compression is applied to the speaker output sound (it has a very caracteristic sound) and this is not present when using headphones

All this was not present with previous phones I had.

In order to enjoy the portability of listening to music with solely the phone's internal speaker, how to improve its quality?

Are there apps that can apply EQ to internal speaker only (not 3.5mm headphone out jack) ?

Are there some effects to disable in a hidden menu (Developer menu?) of Android 5.0.2 ?

Background: I have had a few Android Samsung phones, a good old cheap Samsung Young S5360, a Galaxy Trend Lite, etc. and now a Samsung A3 (SM-A300FU) using Android 5.0.2.
Music producer here.


问:
Force Android to get the most out of a power bank
In a sad case of "two smarts make for a stupid", my powerbank is trying to adjust to the power needed by my Galaxy A3, while the phone, probably trying to do the same, settles for a low amperage.  As a result, the battery charges at 500 mA instead of 1500.  Is there a way I can force my phone to suck faster from the powerbank?

Notes:

A Galaxy S4 does get 1500 mA from the power bank;

The Galaxy A3 does charge at 1500 mA when plugged to a charger.

The powerbank is a GP Powerbank FP05M 3.7V 5000 mAh/18.5Wh, Input DC 5V/2A; output DC 5V/2.1A.


问:
phone vs google contacts (android 7.0)
I have a Nexus 5X with android 7.0. A lot of my saved phone numbers are only searchable in the phone application, and are not listed in the contacts application. Various discussions, here and elsewhere, suggest that the contacts I can see in the phone, but not in my contacts app, are saved to the SIM card. However, both a third party SIM card management app, and attempting to import contacts from my SIM card to my contacts (via contacts -> settings -> import/export) indicate that there are no saved contacts on my SIM card. It is not clear to me where these contacts are actually saved then. And, how can I sync them into my contacts? </p>

<p>As far as I know, my default when creating new contacts has always been to save them to my gmail account (in fact, I don't seem to have any other option when I select "create new contact"), but somehow only a subset of those saved contacts actually seem to show up in my contacts app. </p>

Title: phone vs google contacts (android 7.0)


问:
How do I force Google Play Store to download new apps on a roaming mobile connection?
I am often on a roaming mobile connection, and I have found that Google Play Store does not allow you to install apps while roaming. Clicking the "Install" button puts the app in a "Downloading..." state, but doesn't progress until you switch to a non-roaming connection (mobile or wifi). How do I force the Google Play Store to download the app while roaming? This issue occurs on and may be specific to Android 7.0.</p>


问:
Ffmpeg on non-rooted Android?
I've set several places where I can get a ffmpeg binary for Android, but I cannot seem to run it. I use the . command to run shell scripts, but not ffmpeg. Is there any way at all I can run ffmpeg without rooting my device? (chmod-ing it is not allowed.)
I've downloaded a binary before, and attempted to run it, but I was unable to do so because it was not marked as executable. I was not allowed to chmod it and received the following error: Unable to chmod file: operation not permitted.

Title: Ffmpeg on non-rooted Android?


问:
Android: something is using up all my wifi
This is the problem I have, and it just started today. When I start my wifi, everything seems alright. I can use the internet. Then, something kicks off that uses up all the wifi, and at that point, nothing works.

Based on what's happening in the apps, it looks like all of their requests are timing out. The icon shows that I'm constantly uploading/downloading, despite their being no apps on.

I've turned it on and off multiple times to no avail.

What could be doing this? How can I track it down?

Thanks!

OwnerDisplayName: Summitch


问:
How do I download whole folder from OneDrive onto my SD card?
How do I download whole folder from OneDrive onto my SD card?
Exactly what an app called Folder Downloader (that works only for Dropbox) does for Dropbox - but getting a folder from OneDrive.

reliability is important. Also if 7 files out of 40 fail - the app should offer re-try of just those files.


问:
Why phone screens have full brightness during boot time?
A simple question.

Why do phone screens have to be set at full brightness during power-up? (Maybe at that time the hardware's light sensor/s is initializing?)

Why did the developer/manufacturers not set the display's brightness to a lower value to allow a better User Experience?

p.s.- this came to my mind when I was restarting my phone, multiple times while debugging my Xposed module and being terribly sorry for my eyes to be having to look at the bright display.


问:
How to dismiss configurations from my lock screen in Android 6?
I have just bought my first Android phone (Hauwei P8 lite). It came with Android 5.0, but it updated to Android 6.0.
I have configured it to have notifications on the lock screen, which I like. What is really bothering me is that I cannot dismiss them from the lock screen. Even if I swipe them to the right, it asks for my password and if I enter the password, the app that sued the notification is opened.

Is there any way to remove the notifications, clearing the lock screen, but not opening the app?

(By dismiss I mean that I want that single notification to go away, but I expect new notifications from that app to appear, so I do not want to change the configurations)


问:
How much voltage does “Sony Ericsson Live with Walkman (WT19)” needs (for replacing the charger)?
I need to get a new charger for my phone, wich is a "Sony Ericsson Live with Walkman" and mine is WT19a, in the wiki article says there is another model called WT19i. I need to know the exact voltage needed.

This is the manual in pdf to download easily.

I read that manual and search for this keywords: battery, voltage, current (electricity usage) and there is no info regarding the voltage needed.

According to this answer, the most important to match in a charger for a phone is the specific voltage. The current has to be greater. I need to know both things, but with only the voltage we can call it a day.

The battery says both 3.7 V and 4.2 V in two different places with unknown Asian characters surrounding.

Wich charger do I need?


问:
How to move google search bar to bottom of home screen?
I have moto g4 plus rooted phone with Xposed installed. Google search bar is at the top of screen and it is inconvenient to reach it every time to search for apps.

Is there a way to move it to the bottom of the screen? I found several ways to remove google search bar but didn't find a way to move it. I don't want to use any third party launchers.


问:
Remove Google widget
How do I remove the chunky, waste-of-space Google search widget at the top of every home screen? And if I do, can I put apps there instead? I know I can add and remove Google widgets on the main home screen:
Note: I am not willing to root it.

Title: Remove Google widget


问:
How to fix YouTube and and GooglePlay store problems?
can anybody help me?  A couple of days ago I went to YouTube and a message popped up saying "Check your connection and try again" same thing happened with the play store.  I saw that my WiFi was perfect.  I rebooted my device and re-connected to my wifi but it's still the same.  The other devices on the same wifi was working perfectly.  And the problem is also same with my Data connection.  So my wifi and data connection,  none of them are working. Please somebody help me. </p>

<p>Thanks, Apon. </p>


问:
How can I change the default download location to the external SD Card?
I have a Chinese tablet that runs Android 4.4.2 (KitKat) and comes with the default Download Manager. I googled for a way to change the default download location to the external SD card with no luck. Can anyone advise me how to do this? I don't have the my files app as stated in most solutions.

Click image(s) for larger version


问:
Can I install FM radio APK in another phone?
I have the FMRadio's APK of an old phone with recording feature and I would like to install it in a phone that comes with FM Radio but doesn't have recording feature.

I've tried but it says app was not install but the icon appears in desktop but doesn't run.

Is there a way to make this?

I saw somewhere something like the apk should be copied to system/app folder. But I receive permission denied to copy there.

I tried without success with Spirit Radio and next radio apps. They don't work for my phone model Zenfone2.

Thanks in advance


问:
Unable to unlock Boot-loader
My android device is 4.4.2 with MT6592.

I am not able to unlock its boot-loader.

After commands ….

adb reboot bootloader

fastboot oem unlock

Android device asks permission. I confirmed on android device by pressing Volume Up key.
There is no change on device screen and computer screen even after 30 min.

I checked its connectivity by a command.

adb devices

List of devices attached

x.x.x.x device

Apart from this I changed USB cable and USB port. However, there is no change.

If I go for commands …

adb reboot bootloader

fastboot flash recovery twrp.img

No TWRP images is compatible.

Please guide me to fix it.

Regards

GNS

Title: Unable to unlock Boot-loader


问:
How to root an Amazon Fire 7 5.3.1?
It has been a long time since the 5.3.1 update for the Amazon Fire 7 Tablet came out and there's no way to root it.

How to root Amazon Fire 7 5.3.1?

Title: How to root an Amazon Fire 7 5.3.1?


问:
OnePlus one stuck in CyanogenMOD recovery CM13
I wanted to factory reset my OnePlus one to its factory settings. My OnePlus one is completely stock, no bootloader unlocked and no USB debugging enabled.
After the factory reset was completed the phone rebooted itself, it entered recovery mode and there was no way out of there, it would just boot back to recovery. Just before it enters recovery mode it shows and android error for a split second; "No Command"

-I did a factory reset from within the recovery menu, took a long time but didn't work, still only the recovery menu.

-I wiped the cache, didn't work.

-Then I installed the SDK kit on my Windows PC, got ADB working and entered the sideload option in the recovery menu. Sended the latest CM13 Beacon zip to the phone. It told me that it was installing but after completion it just disconnects from ADB and shows the Recovery screen. Navigating to "Apply Update" and then instead of "Apply from ADB" I can also pick: "Choose from emulated" but that just sends me back to the main menu.

Rebooting, rebooting to bootloader, it all gives me the Cyanogen Recovery screen


问:
Low power consumption application
In a non mobile application which is powered by a battery and it has to be powered on during weeks without recharging it.

Is Android suitable? Or an embedded Linux is better ?

Android has a power management feature, but can we control it or is it something "automatic" ?

Title: Low power consumption application


问:
Can a failed sideload take up storage?
I have a stock Nexus 5, newest firmware, no root. Usually, I maintain 500 MB free space (have to clear cached data sometimes) to avoid error messages. Since yesterday, I have done these things:

Cleared data on the Hearthstone app

Updated Hearthstone, which is a big storage hog, but I don't think this update really cost me 500 MB

Sideloaded the most recent OTA update (full, not incremental OTA) using adb sideload.

Launches Hearthstone, which unpacks gigabytes of obb files.

Step 2 failed at first due to a bad USB connection. So I tried again, and it updated fine that time, going through "optimizing apps" and all that fun. However, after step 3, storage is full, all the way. Clearing cached data does nothing. Phone is slow to react, unstable, etc.

I have uninstalled Hearthstone now, freeing 3.33 GB, but I am sure reinstalling it will fill that space again, and again: I don't the previous version was much smaller.

So, my question is: Can the failed sideload be reason for this mess by taking up storage somewhere? Is there a way to clean this (without root)?

Title: Can a failed sideload take up storage?


问:
Missing folders via MTP connection
When connecting an Android device (KitKat) to a Windows box via USB, and specifying the use of MTP, recent folder additions are often not visible on the Windows end.

Is this because the Android Media Scanner needs more time to run in order to find all those new folders?  Or is there a different explanation?

Title: Missing folders via MTP connection


问:
How do I record 4k video beyond 5 minute limit in Samsung S6?
4K/UHD video recording is gorgeous, but unfortunately the phone has a built in limit of 5 minutes. Not sure if this is for reasons of overheating, or something else. I have plenty of storage.

Is there a way to bypass this? (At my own risk)


问:
How can I detect if my phone is in a "Normal calls are restricted by access control" state, blocking incoming and outgoing calls
Sometimes this error occurs on my cell (a Lenny 2 with android 5.1). I'll only notice the error when I try to make a call, there are no obvious warnings that something is erroneous i.e. signal strength is fine - perfect.
I can't receive calls then either, this can be pretty bad as you can imagine.

I tried the standard things, resting to factory defaults, only using the stock apps, updating everything, contacting phone manufacturer and network provider to no avail.

When the error occurs, its easily fixed by switching into airplane mode for a sec and back again.

What I would like to do:

Create a small app that periodically checks if I can do a call or can be called i.e. checking if the device is connected to the network correctly.
And if something isnt working correctly, it automatically does the airplane-mode switch.

Is there a method for doing such a test, without actually dialing a
number?


问:
resize screen for dead touch zone (using adb command)
My Oneplus One fell recently, and I can't use the bottom 2-3cm of the touchscreen.

I found this question here: Resize screen for Dead touch zone

I tried the option using adb.
I only used the command: adb shell wm overscan 0,0,0,400

But I get this screen:

Apparently it uses the overscan double. Once above the soft-keys, and once above them.

Anyone has a solution?


问:
Google Photos - Cannot turn on backup
I have a Yu Yureka mobile with stock CM12.1. It came preinstalled with Google Photos and I updated it to its latest version. It was working fine until one day I tried to free up space by deleting already synced photos using the app itself. It crashed. After that whenever I open the app, it crashes within 5 seconds.

I tried several workarounds like clearing the cache, data of Photos, clearing Google Play Services' data, manually turning backup photos off and on but nothing works.

[a] Finally I uninstalled the update and arrived at the stock version of Photos. Now the app is not crashing immediately but I cannot turn on backup. It is always disabled. Whenever I click the Backup button in Settings (of Photos), it opens Backup screen for a moment but then closes and arrives back at the Settings menu.

After this, I installed the latest update but then again, the cycle repeats.

Can you guys help me in solving this issue? I tried putting reviews and reported bugs, but you know, it's Google.

I took a log of the Backup window closing event I mentioned in [a]. I cleared the logcat just before I pressed the Backup button -> logcat is on -> Backup window closes -> logcat is off. Here's it:

```<code>--------- beginning of main
I/MSM-irqbalance(  279): Decided to move IRQ104 from CPU5 to CPU4
I/MSM-irqbalance(  279): Decided to move IRQ177 from CPU5 to CPU4
--------- beginning of system
I/ActivityManager(  769): START u0 {cmp=com.google.android.gms/.photos.autobackup.ui.AutoBackupSettingsActivity} from uid 10017 on display 0
W/ActivityManager(  769): startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: Intent { cmp=com.google.android.gms/.photos.autobackup.ui.AutoBackupSettingsActivity }
V/WindowManager(  769): addAppToken: AppWindowToken{89d066e token=Token{30d029e9 ActivityRecord{3c721270 u0 com.google.android.gms/.photos.autobackup.ui.AutoBackupSettingsActivity t122}}} to stack=1 task=122 at 0
V/WindowManager(  769): Adding window Window{19a2d21 u0 Starting com.google.android.gms} at 4 of 7 (after Window{26d33434 u0 com.google.android.apps.photos/com.google.android.apps.photos.home.HomeActivity})
D/ChimeraActivityProxy(17075): Loading activity implementation for ComponentInfo{com.google.android.gms/com.google.android.gms.photos.autobackup.ui.AutoBackupSettingsActivity}
D/ChimeraActivityProxy(17075): Proxying container activity ComponentInfo{com.google.android.gms/com.google.android.gms.photos.autobackup.ui.AutoBackupSettingsActivity} to Chimera activity impl .photos.autobackup.ui.AutoBackupSettingsChimeraActivity
I/art     (  769): Background sticky concurrent mark sweep GC freed 87190(3MB) AllocSpace objects, 11(220KB) LOS objects, 5% free, 36MB/38MB, paused 4.679ms total 126.710ms
V/WindowManager(  769): Adding window Window{178abbff u0 com.google.android.gms/com.google.android.gms.photos.autobackup.ui.AutoBackupSettingsActivity} at 4 of 8 (before Window{19a2d21 u0 Starting com.google.android.gms})
I/ActivityManager(  769): Displayed com.google.android.gms/.photos.autobackup.ui.AutoBackupSettingsActivity: +506ms
I/Timeline(15097): Timeline: Activity_idle id: android.os.BinderProxy@2ce0c0f6 time:17592408
I/Timeline(  769): Timeline: Activity_windows_visible id: ActivityRecord{32b2d99e u0 com.google.android.apps.photos/.home.HomeActivity t103} time:17592990
W/ResourceType( 1225): No package identifier when getting value for resource number 0x00000000
W/PackageManager( 1225): Failure retrieving resources for com.google.android.gms: Resource ID #0x0
E/GpsXtraDownloader(  769): No XTRA servers were specified in the GPS configuration
I/MSM-irqbalance(  279): Decided to move IRQ178 from CPU5 to CPU7
D/TaskPersister(  769): removeObsoleteFile: deleting file=121_task.xml
D/TaskPersister(  769): removeObsoleteFile: deleting file=121_task_thumbnail.png
I/MSM-irqbalance(  279): Decided to move IRQ104 from CPU4 to CPU7
</code>```

UPDATE: I updated the app again to latest version and the backup didn't work again. Assistant was showing "Waiting for sync" always. But then I deleted the unsynced photos from my camera folder and viola! Sync came back on and everything was good.

But today, I tried to sync a jpg and mp4 file and it synced correctly. But then I tried to play the synced video in Photos itself and it crashed. It is now crashing everytime I open the app. I took another log of this crash:

```<code>--------- beginning of crash

F/libc    (32081): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x10102464c457f in tid 32224 (Thread-1191)

I/libc    (32081): Suppressing debuggerd output because prctl(PR_GET_DUMPABLE)==0

W/InputDispatcher(  775): channel '124051c6 com.google.android.apps.photos/com.google.android.apps.photos.home.HomeActivity (server)' ~ Consumer closed input channel or an error occurred.  events=0x9

E/InputDispatcher(  775): channel '124051c6 com.google.android.apps.photos/com.google.android.apps.photos.home.HomeActivity (server)' ~ Channel is unrecoverably broken and will be disposed!

I/WindowState(  775): WIN DEATH: Window{124051c6 u0 com.google.android.apps.photos/com.google.android.apps.photos.home.HomeActivity}

W/InputDispatcher(  775): Attempted to unregister already unregistered input channel '124051c6 com.google.android.apps.photos/com.google.android.apps.photos.home.HomeActivity (server)'

D/ConnectivityService(  775): ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ id=67, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ], android.os.BinderProxy@2462edca)

D/ConnectivityService(  775): releasing NetworkRequest NetworkRequest [ id=67, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]

I/Zygote  (  314): Process 32081 exited due to signal (11)

I/ActivityManager(  775): Process com.google.android.apps.photos (pid 32081) has died

E/ConnectivityService(  775): RemoteException caught trying to send a callback msg for NetworkRequest [ id=67, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]

I/UPNPSearch(29931): Destroying...

I/AirPlayProvider(29931): Destroying...

W/ActivityManager(  775): Scheduling restart of crashed service com.google.android.apps.photos/.camerashortcut.ForegroundServiceImpl in 1000ms

W/ActivityManager(  775): Scheduling restart of crashed service com.google.android.apps.photos/com.google.android.libraries.social.async.BackgroundTaskService in 11000ms

W/ActivityManager(  775): Scheduling restart of crashed service com.google.android.apps.photos/.dbprocessor.impl.DatabaseProcessorService in 11000ms

W/ActivityManager(  775): Force removing ActivityRecord{3a9609ec u0 com.google.android.apps.photos/.home.HomeActivity t67}: app died, no saved state

I/MSM-irqbalance(  279): Decided to move IRQ174 from CPU4 to CPU6

W/MdnsClient_Cast(29876): Multicast lock held. Releasing. Subtypes:"96084372"

W/MdnsClient(29876): unicast receiver thread is already dead.

W/InputMethodManagerService(  775): Got RemoteException sending setActive(false) notification to pid 32081 uid 10075

I/Timeline( 1712): Timeline: Activity_idle id: android.os.BinderProxy@9944138 time:8891311

I/Timeline(  775): Timeline: Activity_windows_visible id: ActivityRecord{24e8a89e u0 com.cyanogenmod.trebuchet/com.android.launcher3.Launcher t1} time:8891571

I/ActivityManager(  775): Start proc 32272:com.google.android.apps.photos/u0a75 for service com.google.android.apps.photos/.camerashortcut.ForegroundServiceImpl

I/MSM-irqbalance(  279): Decided to move IRQ104 from CPU4 to CPU6

W/GCM-DMM ( 2113): broadcast intent callback: result=CANCELLED forIntent { act=com.google.android.c2dm.intent.RECEIVE pkg=com.google.android.apps.photos (has extras) }

E/SQLiteLog(32272): (283) recovered 4 frames from WAL file /data/data/com.google.android.apps.photos/databases/gphotos0.db-wal

W/linker  (32272): /data/app/com.google.android.apps.photos-1/lib/arm64/libcronet.so: unused DT entry: type 0x6ffffffe arg 0x2fc0

W/linker  (32272): /data/app/com.google.android.apps.photos-1/lib/arm64/libcronet.so: unused DT entry: type 0x6fffffff arg 0x3

I/art     (32272): Note: end time exceeds epoch:

D/ConnectivityService(  775): listenForNetwork for NetworkRequest [ id=68, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]

D/ConnectivityService(  775): handleRegisterNetworkRequest checking NetworkAgentInfo [WIFI () - 103]

D/ConnectivityService(  775): apparently satisfied.  currentScore=60

D/ConnectivityManager.CallbackHandler(32272): CM callback handler got msg 524290

I/art     (32272): Note: end time exceeds epoch:

I/art     (32272): Note: end time exceeds epoch:

I/art     (32272): Note: end time exceeds epoch:

W/WakefulBroadcastReceiver(32272): No active wake lock id #1

I/MSM-irqbalance(  279): Decided to move IRQ178 from CPU4 to CPU6

I/ActivityManager(  775): Start proc 32331:com.cyanogenmod.filemanager/u0a39 for service com.cyanogenmod.filemanager/.providers.secure.SecureCacheCleanupService

W/FileManagerApplication(32331): Command /system/xbin/su not found. Exists: false; IsFile: false.

W/IntentService[A(32351): type=1400 audit(0.0:840): avc: denied { read } for name="mem" dev="debugfs" ino=237346 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=0

W/IntentService[A(32351): type=1400 audit(0.0:841): avc: denied { read } for name="mem" dev="debugfs" ino=237346 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=0

W/ActivityManager(  775): getRunningAppProcesses: caller 10095 does not hold REAL_GET_TASKS; limiting output

V/MimeTypeIndexService(32331): onHandleIntent(Intent { act=com.cyanogenmod.filemanager.ACTION_START_INDEX cmp=com.cyanogenmod.filemanager/.service.MimeTypeIndexService (has extras) })

D/MimeTypeIndexService(32331): Action: com.cyanogenmod.filemanager.ACTION_START_INDEX

V/MimeTypeIndexService(32331): performIndexAction(/storage/emulated/0)

I/MimeTypeIndexService(32331): Starting mime type usage indexing on '/storage/emulated/0'

I/MSM-irqbalance(  279): Decided to move IRQ131 from CPU4 to CPU6

D/MimeTypeIndexService(32331): AUDIO = 11108680

D/MimeTypeIndexService(32331): TEXT = 142203

D/MimeTypeIndexService(32331): BINARY = 6825

D/MimeTypeIndexService(32331): FONT = 187236

D/MimeTypeIndexService(32331): DATABASE = 48

D/MimeTypeIndexService(32331): VIDEO = 288993908

D/MimeTypeIndexService(32331): COMPRESS = 34672032

D/MimeTypeIndexService(32331): DOCUMENT = 13951531

D/MimeTypeIndexService(32331): EBOOK = 683804

D/MimeTypeIndexService(32331): NONE = 352704314

D/MimeTypeIndexService(32331): IMAGE = 50246484

V/MimeTypeIndexService(32331): onHandleIntent(Intent { act=com.cyanogenmod.filemanager.ACTION_START_INDEX cmp=com.cyanogenmod.filemanager/.service.MimeTypeIndexService (has extras) })

D/MimeTypeIndexService(32331): Action: com.cyanogenmod.filemanager.ACTION_START_INDEX

V/MimeTypeIndexService(32331): performIndexAction(/system)

I/MimeTypeIndexService(32331): Starting mime type usage indexing on '/system'

W/IntentService[M(32366): type=1400 audit(0.0:842): avc: denied { getattr } for path="/system/bin/adsprpcd" dev="mmcblk0p25" ino=247 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:adsprpcd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:843): avc: denied { getattr } for path="/system/bin/audiod" dev="mmcblk0p25" ino=256 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:audiod_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:844): avc: denied { getattr } for path="/system/bin/auditd" dev="mmcblk0p25" ino=257 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:logd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:845): avc: denied { getattr } for path="/system/bin/bootanimation" dev="mmcblk0p25" ino=261 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:bootanim_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:846): avc: denied { getattr } for path="/system/bin/btnvtool" dev="mmcblk0p25" ino=262 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:bluetooth_loader_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:847): avc: denied { getattr } for path="/system/bin/clatd" dev="mmcblk0p25" ino=269 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:clatd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:848): avc: denied { getattr } for path="/system/bin/debuggerd" dev="mmcblk0p25" ino=279 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:debuggerd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:849): avc: denied { getattr } for path="/system/bin/debuggerd64" dev="mmcblk0p25" ino=280 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:debuggerd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:850): avc: denied { getattr } for path="/system/bin/dhcpcd" dev="mmcblk0p25" ino=283 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:dhcp_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:851): avc: denied { getattr } for path="/system/bin/dnsmasq" dev="mmcblk0p25" ino=285 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:dnsmasq_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:852): avc: denied { getattr } for path="/system/bin/drmserver" dev="mmcblk0p25" ino=287 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:drmserver_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:853): avc: denied { getattr } for path="/system/bin/dumpstate" dev="mmcblk0p25" ino=289 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:dumpstate_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:854): avc: denied { getattr } for path="/system/bin/hostapd" dev="mmcblk0p25" ino=304 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:hostapd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:855): avc: denied { getattr } for path="/system/bin/install-recovery.sh" dev="mmcblk0p25" ino=312 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:install_recovery_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:856): avc: denied { getattr } for path="/system/bin/installd" dev="mmcblk0p25" ino=313 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:installd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:857): avc: denied { getattr } for path="/system/bin/irsc_util" dev="mmcblk0p25" ino=319 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:irsc_util_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:858): avc: denied { getattr } for path="/system/bin/keystore" dev="mmcblk0p25" ino=320 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:keystore_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:859): avc: denied { getattr } for path="/system/bin/lmkd" dev="mmcblk0p25" ino=324 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:lmkd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:860): avc: denied { getattr } for path="/system/bin/location-mq" dev="mmcblk0p25" ino=327 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:location_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:861): avc: denied { getattr } for path="/system/bin/logd" dev="mmcblk0p25" ino=330 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:logd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:862): avc: denied { getattr } for path="/system/bin/mdnsd" dev="mmcblk0p25" ino=337 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:mdnsd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:863): avc: denied { getattr } for path="/system/bin/mediaserver" dev="mmcblk0p25" ino=339 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:mediaserver_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:864): avc: denied { getattr } for path="/system/bin/mm-pp-daemon" dev="mmcblk0p25" ino=345 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:mm-pp-daemon_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:865): avc: denied { getattr } for path="/system/bin/mm-qcamera-daemon" dev="mmcblk0p25" ino=346 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:mm-qcamerad_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:866): avc: denied { getattr } for path="/system/bin/msm_irqbalance" dev="mmcblk0p25" ino=350 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:msm_irqbalanced_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:867): avc: denied { getattr } for path="/system/bin/mtpd" dev="mmcblk0p25" ino=351 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:mtp_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:868): avc: denied { getattr } for path="/system/bin/ndc" dev="mmcblk0p25" ino=354 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:wcnss_service_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:869): avc: denied { getattr } for path="/system/bin/netd" dev="mmcblk0p25" ino=356 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:netd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:870): avc: denied { getattr } for path="/system/bin/netmgrd" dev="mmcblk0p25" ino=357 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:netmgrd_exec:s0 tclass=file permissive=0

W/IntentService[M(32366): type=1400 audit(0.0:871): avc: denied { getattr } for path="/system/bin/perfd" dev="mmcblk0p25" ino=366 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:perfd_exec:s0 tclass=file permissive=0

I/art     (32331): WaitForGcToComplete blocked for 16.140ms for cause HomogeneousSpaceCompact

D/MimeTypeIndexService(32331): AUDIO = 15364648

D/MimeTypeIndexService(32331): EXEC = 5424

D/MimeTypeIndexService(32331): TEXT = 2903462

D/MimeTypeIndexService(32331): BINARY = 492086588

D/MimeTypeIndexService(32331): FONT = 30253716

D/MimeTypeIndexService(32331): COMPRESS = 19015425

D/MimeTypeIndexService(32331): APP = 566877958

D/MimeTypeIndexService(32331): NONE = 330889839

D/MimeTypeIndexService(32331): IMAGE = 7799486

I/ActivityManager(  775): Killing 31076:com.cyngn.fota/u0a5 (adj 15): empty #17

I/MSM-irqbalance(  279): Decided to move IRQ130 from CPU4 to CPU6
</code>```

Title: Google Photos - Cannot turn on backup


问:
How to work bluetooth with asus eeepad?
Odd question.. How do I get my bluetooth headset to handle the audio/mic for my tablet?</p>

Title: How to work bluetooth with asus eeepad?


问:
E-mail links do nothing when I click on them
Some links in my yahoo email will not open or do anything when clicking or long pressing on them .
Ones that work are in emails that I have clicked on always show pictures .
The emails that did not pop up that window I cannot get links to open.
They all worked fine on my Maxx but my new Moto z is where I'm having these problems.</p>


问:
SMS sending to some contacts but not others in Messaging app
I have a Nexus 5 with Cyanogenmod 13.0.

I use the built-in "Messaging" app for SMS. I've never had a problem with it until now. I have been able to send texts to any number I've tried.

A week or two ago I switched phone network. Since I did that, I gradually noticed that though I can receive SMS from any number (as far as I can tell), the messages I send only get through to particular numbers.

There's no pattern that I can find with the numbers which work and which don't work. They're all numbers I've been OK with in the past, and both working and not-working numbers seem to exist on a variety of networks.

The message briefly says "sending" or something, and then soon after that they show as being sent, and I can read information about the message (like the timestamp when it was sent, and the number it was sent to, and all of this looks legit).

I phoned my new provider and after some time they told me that there was no record of their end of the disappearing messages ever getting to their network. They said it must be my phone.

I didn't want to believe this, since sending to these numbers was fine on my old network, but tried my sim card in a friend's phone anyway. Lo and behold, again using the built-in Messaging app, the texts sent just fine. And using his sim card in my phone, I could not send to that number. His sim in his own phone sent OK. So it did look like my phone after all.

This doesn't make sense to me, and I started looking for possible reasons. I found this answer to another question which suggests trying a different SMS app.

I tried Google Hangouts and sure enough, it can send the message to this number. But I don't want to use Google Hangouts for SMS, or any of the other alternatives.

What can I do? Is there anything I can try which may help, without wiping out my SMS history, or reflashing the rom, or switching rom? I just find it so bizarre that suddenly I can't send to these particular contacts, while nothing I'm aware of has changed other than my network, yet it doesn't seem to be their fault.


问:
Clean install ASUS ZenPad S 8.0
How to install a clean version of Android (Marshmallow) on my ASUS ZenPad S 8.0.
I'm sick of all the bloatware.</p>

Title: Clean install ASUS ZenPad S 8.0


问:
Bluetooth recording quality is good only when calling, but not when recording
I have bought O'Bees bluetooth headphones (amazon page) and while the sound quality of my voice is good when I talk with other people on the phone, it is significantly worse if I record only myself on the phone using the same mic of the headphones.
It makes no sense. Why would I get a bad sound quality just because I use a different application?</p>


问:
Backup an LG watch urbane
I'm now trying to backup my Android wear. I got the drivers from the official LG website, but nothing appears when I plug it in. Driver manager reports no errors, so i guess it didnt detect the watch. Usb 2.0. Can someone help me on what to do? Thanks.
Technical setup: Usb 2.0 (my connection) Windows 10, using charging dock.</p>

Title: Backup an LG watch urbane


问:
Edit password.key then unlock phone
I just did a strange thing.I went to data/system, there was password.key file.It was consisted of almost two lines of text included more numeric and few alphabets.I just edited it and add "32" at the end of second line using ES file explorer.Then I locked my phone,now i am unable to unlock it. How can I unlock my android phone without factory reset?</p>

Title: Edit password.key then unlock phone


问:
I can get Internet Access, Though I cannot Use Instant Messagings (LINE, Zalo, Viber)
I have a problem regarding the internet connection to my android applications, e.g. Instagram, LINE, Viber, etc.

I use Android x-86 version 5.1 (Lollipop) on Vm-ware.

Actually, I have internet connectivity, I can access internet via web browser. Though I cannot use my android application that I mentioned above.

How to solve that problem. Please help me out. Thanks in advance.


问:
Can't select widget
I have an android 5.1.1 tablet. There is a narrow, tall widget appearing at the top left, and just says "Problem loading widget". Whenever I hold it for several seconds, it just acts like I am holding an empty space. I can't select it. How can I get rid of it?</p>

Title: Can't select widget


问:
Restore IMEI on Android One through Macbook
I recently flashed my Android One device & installed a custom ROM on it. I've lost my IMEI number during the process. How can I restore it permanently so that the IMEIs don't get erased on next factory reset?

I'm on Macbook Pro.

PS: Would also like to know for windows on a secondary note.


问:
I can get Internet Connection, However I cannot download APK File (Kitkat and Lollipop)
I have problem related on internet connection in Android x-86 version 5.1 (Lollipop) and version 4.4 (Kitkat). I run that android emulators on VM-ware.

I use android-x86-4.4-r5.iso for Kitkat and android-x86-5.1-rc.iso for Lollipop.

I have internet connectivity and I can use web browser for both android emulators, but I cannot download the APK files.

The status of the APK files at Download Folder always show Queued status and I waited for so long but there was no any APK file at that folder (Download folder), or there is no any response.

Please help me out.
Thanks in advance.


问:
How can I create a backup ROM compatible with ADB sideload?
Can someone explain how to backup a rooted Android device into a ZIP file that would be compatible with adb sideload? Is it possible without having a custom recovery installed?

Is there a specific name for a ROM in that format? Is the format documented somewhere? Are there tools that package ROMs into that format?


问:
How does "GMSActivator.apk" work?
Android distributions for PC don't come with Google apps installed out of the box because they would need a Google licencing for that. Using those apps requires, according to some sources, a GMSActivator.apk app file or other means of installing Google apps, which are relatively easy to do. My question is how is it possible that it's so easy to bypass Google restrictions and install their apps? I was planning to try Android on my PC but now I'm a little suspicious about that...</p>

Title: How does "GMSActivator.apk" work?


问:
Clash of Kings on One Plus 2 with OxgenOS 3.1.0 not responding error
I have installed clash of kings game on my new android device which is one plus 2 and I just updated the OxgenOS to 3.1.0 and Clash of Kings stopped working,it always shows not responding error before upgrade it was working fine.

If anyone have faced same issue please help me. I have tried by reinstalling and clearing data but nothing worked.


问:
Countdown timer going off late
I've had a problem with the default clock app, specifically the countdown timer portion (also has alarm clock and regular timer in it). Sometimes it goes off late by several minutes when setting it for intervals under 1 hour. What could be causing this problem? I don't have any other apps which could affect time to my knowledge. Android version is 4.4.2, phone model is HTC 626G+.</p>

Title: Countdown timer going off late


问:
How to remove bloatware in non-rooted android smartphone?
Is therr anyway to remove the system app via adb or else ?
I am not talking about disabling application!?</p>


问:
Mount f2fs sdcard on boot
I have a 128 GB microsd and I do not want FAT32 on it. I have MIUI 8 (Android 5.1.1) with 3.10.49 kernel, TWRP 3 and root. For some reason mount doesn't work at all, it always produces error Invalid argument. I tried replacing it with one from BusyBox but it didn't help. Some forum guys told me that I should add the card to fstab (which AFAIK is located inside boot.img), and edit the config of vold (which is located I have no idea where). Also this. All I understood from there is that there is some storage_list.xml and I should edit it. Again, searching through forums led me to this path framework-res.apk\res\xml\storage_list.xml.

But still! I have no idea where this framework-res.apk is located and how do I unpack-repack it.

All info that I'm desperately trying to extract from google is outdated or related purely to cyanogen >_< Please give some instructions

Title: Mount f2fs sdcard on boot


问:
Alarm is intermittently not sounding since Marshmallow update
I have a Samsung Note 4.  Since the upgrade to Marshmallow 6.0.1 the built in Clock app's alarms do not sound consistently in the morning.

This only ever happens in the morning (wake up alarm) making it hard to debug.  The phone is plugged in, set to vibrate only, and the Do Not Disturb setting allows Alarms and calls/texts from my favorite contacts.

I get a notification that the alarm was silenced after 1 minute, but there's no way I slept through a minute of it sounding.  I cannot reproduce during the day however.

[The alarms in the "Sleep as Android" app work just fine under the same conditions.  I have been backing up my Clock alarms with Sleep as Android alarms.]


问:
Digitizer turns off when palm is on screen: want to stop this
I'm working on an algorithm for palm rejection for an Android writing app. The idea is to find features of palm touches versus stylus touches that will allow me to reject the palm touches and keep the stylus touches (without having to use a special stylus) in my app. Unfortunately, my phone won't detect any touches at all when my palm is on the screen. I Googled around about this quite a bit and played with my phone's settings to no avail.

Is this just a hardware thing, or is there some software solution or setting I can change?

My phone: a Galaxy S5. I have also tried this on a number of Samsung tablets.


问:
How can I debug degrading performance for my Shamu device?
I've had my Nexus 6 since it first came out and will be replacing it with the new Pixel anyway but I want to get to the bottom of this.

In the last 6+ months the phone got increasingly slow and unresponsive at times. Especially when using the camera but not only then. Battery life remained constant so I don't think there's something using all the CPU. Another symptom was that when having the Android 7 beta installed and being in low signal areas, it would restart randomly but that could've been just the beta part of Android 7.

I've noticed that factory resetting the phone or installing a new version of Android (such as Android 7) improve performance for a while after which it degrades again.

I've tried connecting the phone to adb but haven't noticed anything suspect in the logs. But then again I'm not an Android developer so I'm not sure what should I be looking for.

So my question was: is there any tool or procedure by which I can monitor the device and identify the cause of the issue?


问:
Does verifying the apk signature fingerprint guarantees it has no malware?
I want to check if an apk file is really from a specific developer and that the whole apk has no malware in it.

I unzipped the apk and in the sub-folder META/INF I used the following command in Ubuntu:

```<code>keytool -printcert -file RELEASE_.DSA
</code>```

If I use this technique with a "clean.apk" and a "suspicious.apk" file from the same developer and the MD5 / SHA1 are the same ... does this mean that the "suspicious.apk" really is "clean" ?

Does this work like GnuPG verifying a file? Or is this not reliable to check for integrity / authencity of an apk file?


问:
IME: How to enter katakana rather than hiragana with Swype keyboard
I am using the Swype Japanese keyboard for Android. With the Japanese language selected, how do I tell my keyboard to enter katakana instead of hiragana?

Thanks.

OwnerDisplayName: Jack Maddington


问:
Why wasn't contents visible on SD card? Is there a write buffer?
I am using a SMS backup app that stores a local copy in /sdcard/sms_backup/. After running the app and making a backup, I connected the phone to the computer, by a USB cable, and nothing was there. I verified using File Manager, that on the phone the folder did have the backup files. I found restarting the phone fixed the issue, and I was able to view them on the computer.

Is there some sort of bufferthat makes it so contents don't get written to the sd card immediately?


问:
How to move contacts from SIM to phone - need simple "private" local storage app
I've read like these posts:
How to move contacts from SIM to phone?

However, my Alcatel Android 4.4 phone does not have contacts app as purchased, only some People app that can display and group contacts, no other actions as I see.

Please advice on simple app to copy/move contacts from/to SIM that is not trying to ask for permissions I don't see it needs, like internet, sms, calls, etc. Ads ok (don't think ads work w/out internet though) :-)

Thanks a lot!

P.S. I've tried to extract Contacts app from other phone, but PC app that extracted some apk-s failed to do that, as I see it, when functionality is part of initial install package, there is no apk file on device.


问:
phone as router, no internet needed.
So I have a droid RAZR Maxx HD xt926 and I currently use it without a Verizon sim or plan. I use it in airplane mode with wifi turned ON, so I can do Google voice calling and texting.

I would like to use the phones wifi networking capabilities to be a router for my friends and I when we are away so that we can do LAN parties. However when I install apps like HOTSPOT CONTROL and that Fifi one it just fails saying I have to have a data plan. I DONT NEED the internet access. All I want is a basic wireless switch/router.

I have also searched everywhere I can think for an app that will do this.

Phone is NOT ROOTED as many of you probably know this particular phone cannot be rooted or the bootloader unlocked because some genius at Motorola decided I can't do that.

Does anyone have an idea of something that will work?

Title: phone as router, no internet needed.


问:
Block "Mobile Data Turned Off" Notification
I keep getting this one notification from Call Services on an AT&T LG G5 that says "Mobile Data Turned Off." Indeed, mobile data is turned off when I switch from cellular data to a wi-fi connection, but I don't need this notification. How can I stop this notification from appearing?

My one thought would be to have an app that blocks notifications that contain that certain text, but I haven't been able to find an app that does this. Notifications from Call Services can't be blocked in Notifications settings.


问:
Lollipop - Google Play Services is murdering my battery when roaming
I'm on vacation in America, and ever since I got here, my Samsung Galaxy S5 running stock Lollipop (no updates pending) has been burning through its battery at about 1% per minute (with the screen off). The phone gets crazy-hot to the touch (chassis, not battery) and the culprit is Google Play Services according to the Battery screen.

I've looked up some advice articles that recommend disabling GPS (I switched Locations off completely), uninstalling recent apps (done, and then some) and uninstalling updates to Play Services itself (which I can't do on my Samsung device, all the buttons are greyed out).

The phone was working okay when I left the UK. When I landed and switched flight mode off, the device was utterly unusable for 5 minutes straight. I ended up disabling background data sync to get some kind of stability. However, it still gets to the point that the keyboard lags some seconds behind my taps, and swipe is totally unusable.

I'm struggling to work out exactly what's causing this, because switching off features only seems to buy me a short reprieve. I've never seen battery life this bad back home, but equally, I've never seen a phone annihilate its battery like this while roaming. What else can I try?

(I should mention that my plan from the UK allows me to use my data allowance when roaming, so this is not costing me any money)

Edit: upon returning to the UK, my battery life appears to have returned to normal. Something about being out of the country was causing the CPU to go crazy.


问:
How to resize the screen on Android 4.2.2 (adb shell wm overscan doesn't work)
I was following this tutorial in order to resize my screen (or "deactivate" a small part from the bottom of it): https://android.stackexchange.com/a/113782/191822

As describes above I tried tried it with ADB. I'm using Android 4.2.2, which is probably the reason why the following command doesn't work:

```<code>adb shell wm overscan 0,0,0,100
/system/bin/sh: wm: not found
</code>```

Replacing wm by am didn't work either:

```<code>adb shell am overscan 0,0,0,100
...
...
Error: Unknown command: overscan
</code>```

Does anyone know how to accomplish that with Android 4.2.2

I'm working on Ubuntu 16.04

EDIT: ok, I've come so far to notice that the command I have to use might be something like:

```<code>adb shell am display-size
</code>```

e.g. (from 540x960 to 540x700)

```<code>adb shell am display-size 540x700
</code>```

However, this will resize the screen on the top and the bottom. I couldn't find a way to only remove a part of the screen from the bottom withouth changing the screen position on the top.


问:
Installed TWRP, but still getting Odin?
So I'm trying to install CM13 on a Samsung Galaxy S3 (I9300) and I'm following the guide here:

https://wiki.cyanogenmod.org/w/Install_CM_for_i9300

I've managed to do the first part "Installing a custom recovery", but am thinking that something has gone wrong.

I managed to do all the steps without any hiccups, but in step 11. where

```<code>11. The Galaxy S III (International) now has a custom recovery installed.
</code>```

I'm not sure whether this really is the case, since when I hold Home + Volume Down + Power to get to recover mode, what I get to is still Odin, eventhough I'd expect this to boot into TWRP. Odin lists the following

```<code>ODIN MODE
PRODUCT NAME: GT-I9300
CUSTOM BINARY DOWNLOAD: YES (1 counts)
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
</code>```

Judging by CUSTOM BINARY DOWNLOAD, something has been downloaded, but did something go wrong in its installation?

What should I do?

Title: Installed TWRP, but still getting Odin?


问:
Can't go live on Facebook while using Galaxy Camera 2
I'm trying to stream a live video using Facebook android app my galaxy camera 2 running Android 4.3.3, but I can't find the "live" option on it.

Is there a requirement for it to work? Will it work if I flashed a CM rom on it?

P.S it's not a regional issue; i can stream just fine using my Xperia Z5 and my galaxy s 5.

OwnerDisplayName: Omar


问:
Boot Android disabling display
I know that android doesnot have a login prompt like linux and only has diplay to interact with the user.
Still I want to boot Android without any display and I expect only the UART console prints of Andriod.
Does Android source code has this implementation or do I have to customise Android for this specific requirement ?</p>

Title: Boot Android disabling display


问:
sending AT command with NCK code unlock sim?
I need information. How can I send the NCK unlock code network using AT commands? Or is there any other ways?</p>


问:
How to unbrick my device (yuphoria)
I was using CM 13 nightlies for the past few months, everything was working fine without any issue but day before yesterday all of a sudden my devices rebooted and showed something like device encrypted or something like that. Being unable to use my device I thought i should change my ROM to a stable one so i went into twrp and tried installing new ROM but to my surprise the internal storage was showing 0Mb.

I searched internet about this issue and did something like formatting data or wiping everything except the storage. Nothing seems to work and i keep getting this error which says

"unable to mount /data (invalid argument)"

"unable to mount /cache ( invalid argument)"

here are the screenshots:

Screenshots (click images for larger variants)

I even tried flashing the stock ROM through fastboot but that also seems to be not working. It is failing to write system partition and desplaying this message
FAILED (remote: flash write failure)
Here is the screen shot

Than i tried adb sideload. This also gave me no luck. Here is the screenshot of the process.

Now I feel hopeless :(
Any help would be much appreciated.

Title: How to unbrick my device (yuphoria)


问:
How to Transfer contact from Lumia 820 (Windows 8.1 \ Denim) to CSV file or to Android Phone - Huawei P9 (Android 6.0)
How to Transfer contact from Lumia 820 (Windows 8.1 \ Denim) to CSV file or to Android Phone - Huawei P9 (Android 6.0)

Kindly needs assistances, syncing the outlook accounts along with Google account didn't successfully transfer all the 1980+ contacts.


问:
Decryption unsuccessful after enabling a PIN lock when full disk encryption is already activated
I have a Moto G3 with full disk-encryption enabled when I created a PIN lock and after that when my phone was restarted I got the decryption unsuccessful message and I couldn't boot it anymore.

I would like to recover my data.

I've obtained another identical phone and have been able to isolate the bug to cryptd configuration where it is not changed from default to PIN:

10-14 16:57:02.169  6084  6103 D CryptdConnector: SND -> {14 cryptfs getpwtype}
10-14 16:57:02.170  6084  7357 D CryptdConnector: RCV <- {213 14 default}

Since my device have the bootloader locked, do I have any chance to obtain a image of the device flash, or have a shell access during the boot process so that I can decrypt with the correct PIN configuration and not with the "default" password?

Thanks!


问:
Android system storage shortage
Plz help me. My android 4.2.2 only has 1 app of 6.4 mb space. but my junk cleaning app says I have only 2% system space storage left. I cannot even download a single app from the playstore. plz somebody help me. I will be very thankful.
Thanks, Apon.</p>

Title: Android system storage shortage


问:
Options for setting up podcast syndication on an Android device
On an Android device, what options do I have for following podcasts via web syndication our other forms of syndication? How do I set up syndication of podcasts on an Android device, and, since the files are downloaded automatically to my device, what options do I have to control download versus streaming, and are old episodes of the podcasts automatically deleted? Otherwise, do I need to have much blank space on the device to user it? I side it depends on the length of the podcasts.

Thank you for your support.


问:
LG G3 digitizer not reporting movements smoothly
I just replaced the LCD/digitizer assembly on my LG G3, and the new digitizer is behaving strangely. When I scroll views in apps, they jerk a few pixels at a time rather than moving smoothly. The actual scrolling is smooth; if I scroll quick and let go, then it decelerates smoothly. As long as my finger is in contact, though, it's as though the scrolling has a series of detents that it briefly pauses at. At first, I thought it was that it was operating at a lower resolution than the pixels on the screen, but I've found that these detents occur in any direction, not independently on the X and Y axes. It is almost as if it has some sort of built-in hysteresis, where it won't report a position update until the touch has moved at least a certain distance from the last report. I've never encountered anything like this with the phone in the past, including with a previous replacement LCD/digitizer assembly of the same type from the same supplier.

I've recorded a video of this in action, with the "Show touch data" Developer option enabled:

https://youtu.be/-3N-2uft00w

You can see how there are regular intervals in which the X/Y coordinates displayed at the top of the screen don't update even though my finger is moving -- as though it is only reporting an update every 20 pixels or something.

Is this something I can fix, or is this likely a hardware problem with the new digitizer, and if I want my smooth scrolling back I'm going to have to get it replaced again?


问:
What does 'read/write instant messages' do?
Here are my steps on a Motorola using Android 6.0.1
Go to Settings > Apps > Show System > Google Services Framework > Permissions > Additional permissions

What happens if I turn on these options?
- read instant messages
- write instant messages


问:
How do some android apps know from where they have been downloaded?
If you read privacy policy of some online apps, you will find that their services also store information about from where you download their app.

I wonder if this is possible because apk is a compressed archive which can't capture this information while being downloaded. Is it possible that google play store and google play services maybe adding this information after you install that apk.

Most of the time I don't even download or update apps from play store in my every android phone. I just share the apk from one device among every other home device via wifi and side-load them. How do they come to know the download source in this case?


问:
com.android.contacts - need apk file
I want to install standard android contacts app to phone which does not have such. I could not find com.android.contacts package via google search.

Where can I get it? (or it's part of android system and there is no separate apk file in existence?)

Title: com.android.contacts - need apk file


问:
Can I disable charging peripherals via USB?
I have an external DAC with it's own source of power. However when I connect it to the phone, it drains the phones battery.
Is it possible to disable charging via USB on a rooted phone? Or at least slow it down?

My phone is Samsung Galaxy S3, Android 6, CyanogenMod


问:
Swype keyboard: how to add a letter to a keyboard?
I am using the Swype keyboard on Android. When I hold down a letter on the English keyboard (and others), I can see a list of similar letters with diacritics and other options for Unicode character's to input. I want to add an "h with dot below" to my "h" list. How do I do that?

Thanks..


问:
How to make a copy of files from internal memory using adb in recovery mode? (S4, usb debugging is turned off, stock recovery)
My S4 doesn't turn on and unfortunately I didn't back up my files :-(

I only have access to recovery and download mode.

Is it possible to backup the files from my S4 using adb in the recovery mode? Or some other method?

I've tried to do it, but when I type the command adb devices, function in a console doesn't output any connected device. If in the recovery mode I select apply update from adb when I type adb devices, the function returns:

List of devices attached

  5f1e329c Sideload

But after entered the command adb pull / in a console function shows the message error: closed.

Sorry for my English.


问:
Can't add or remove files on SD card
I have a Samsung Galaxy S5 (SC-04F). It has a stock ROM, not rooted, recently upgraded to Android 6.0.1.

After upgrading to Android Marshmallow, No application seems to be able to add, remove, or edit files on the external SD card. For example, Dropsync, can not download files to the SD card, n7player can not remove music files, QuickPic can't move or edit pictures. These are just examples... no app on my phone seems to be able to access the SD card.

Reading files is okay. n7player can play music, and Quickpic can view images, but no app can make changes to the SD card.

If I connect the phone by USB to either my Linux or Windows computer, I can add or remove files from the SD card just fine.

I tried reformatting the SD card, and that didn't change anything.

Whenever I try to take action on a file from within any app, I'm always given this screen:

I follow through by pressing "Got it", and then I am shown the following interface:

Unfortunately, though, nowhere in this interface can I find any option to change permissions on my SD card, or even act on it in any way at all.

In the top left, there is a three dot icon, and if I press it, it gives me the alternate options of either "Show SD Card" or "Hide SD Card". However selecting either option changes nothing.

How do I make my SD card available for use by the apps on my phone?

Title: Can't add or remove files on SD card


问:
Queries on Android Camera
I know the concepts of camera driver and camera HAL(hardware abstraction layer) but I don't have much idea about the upper layers(camera service and application).

I want to know
1. Who and when is camera service created?
2. Is there a process for camera HAL or it runs in the context of camera service?

Answers w.r.t Qualcomm HAL would be more helpful but if not any HAL is OK for me.

Title: Queries on Android Camera