问:
Conference Call using adb shell
I am trying to automate a conference call in android. So far I have been able to automate making a call and receiving a call. I use the following command to make a call

```<code>adb -s <serial no> shell am start -a android.intent.action.CALL -d tel:<telephone_no>
</code>```

And then I query the other phone that is connected to adb server by this command

```<code>adb -s <serial no> shell dumpsys telephony.registry | grep "mCallState"
</code>```

for windows

```<code>adb -s <serial no> shell dumpsys telephony.registry | findstr "mCallState"
</code>```

based on the call state I can accept the call by

```<code>adb -s <serial no> shell input keyevent 5
</code>```

and reject the call by

```<code>adb -s <serial no> shell input keyevent 6
</code>```

Now if I want to make a conference call, I have to hold the call then dial again and on receive I will have to merge the call.
I have used KEYCODE_BREAK as I found it as the break and pause button from the page android keyevent

I also need the merge button key map.

thanks in advance.

Title: Conference Call using adb shell


问:
Samsung Galaxy y does not boot even after factory-reset
Suddenly my Samsung Galaxy Y start to stuck at Samsung screen (not the initial Galaxy Y screen) and keep on restarting after that point. The situation is verymuch similar to this.

I did a factory-reset from recovery mode when I have sdcard in it and found no luck
then I re did the factory-reset after removing sdcard and still no luck

What are other options I have to recover from this point?

ContentLicense: CC BY-SA 3.0


问:
How to regain access to Google after phone is found?
I lost my Android phone but after a few days someone returned it to me. Unfortunately, in the mean time I had blocked my SIM, and blocked my Google and Facebook accounts from using that phone device. Is there any way I can unblock the accounts? I need a phone in which I can check my email.</p>


问:
battery gets drained at a certain time
Lately I've gotten a very strange behavior from my phone:

at a certain time (around 23h) the battery begins to drain,

it's very annoying because I used to keep the phone on during the night (and as a result woke up with a dead phone in the morning).

I use juice plotter to see what's going on and surely:
at around 11 the graph drops at a higher speed compared to the graph during daytime.

I didn't install new apps (that I know of), don't use wifi or mobile network.

I do keep my phone updated (I regularly update all my apps) so an update of a certain app can be the cause (question is: which app?))

If I look at the info of the os itself it doesn't show a certain app using more battery then usual.

How can I investigate this issue?

S.

Title: battery gets drained at a certain time


问:
How do I get rid of the GPS navigation and replace it with an icon?
I have the Samsung Galaxy s4 with echoe rom v51 (lollipop 5.0.1 ) installed and I would like to learn how do I get rid of the GPS navigation text notification and replace it with an icon (of course disabling the GPS is out of question)?

The screenshot is from my phone it sets on Greek language.


问:
Android 5.0.2 x86 on laptop problem
I would like to get info about an issue..I installed lollipop on my laptop (through unetbootin) and everything 's fine except one thing..videos on YouTube app do not play..they keep loading and loading..and if I set a lower quality,all I get is that screen..!!

Can anyone help on that issue??

Title: Android 5.0.2 x86 on laptop problem


问:
How can I ever root my Samsung Galaxy V, SM-G313HZ, Android version 4.4.2? Please help
I've tried everything on the internet to root my phone and followed the exact procedures – but when I try to install CWM or .tar files through Odin mode, I seem to always lose my recovery mode:

Pressing volume up + home button then power button won't work to boot to recovery mode. It just displays a very small red exclamation point at the topmost left of the screen and the logo at the center of the screen then it will turn black, then back again at the logo with the (!).

I still can open my phone but can't boot to its recovery mode and still not rooted. Good thing, there is a way to recover my recovery mode by reflashing my Android's stock ROM through Odin mode, which works 100% in reflashing back my recovery mode. I do, still, have to factory reset my phone after reflashing through the newly flash stock ROM.

Now the question is, how can I ever root my phone?


问:
How to restore APN Settings?
I edited my Android phone's APN Settings. I did not have a back up of my APN Settings file [/system/etc/apns-conf.xml]as mentioned in this post.

I deleted the Proxy and Port fields from my APN Settings. Currently, my device is showing "Not Set" for those two fields as I deleted those 2.

Is there a way I can get my earlier APN settings back? Will remove and adding the SIM Card solve the issue?

Android Device: Samsung Tab 2 running 4.1 and Mobile carrier: Idea Network (Country:India)

Title: How to restore APN Settings?


问:
How to delete SU binaries without root?
My Android device used to be properly rooted, I had root access to things, but the root manager (old version of vRoot, no computer) was a virus. So, I deleted the root program and I was gonna root another way, but I can't delete the old su binaries. I was gonna try and use something like Odin and TWRP to root, or perhaps another method. I have a Samsung Galaxy Tab 3 7' Wifi Only (SM-T210).

How do I delete the SU binaries without root? Maybe using adb? I do not have fastboot.

Title: How to delete SU binaries without root?


问:
USB and charging port is not working after rooting
I have rooted my HTC Desire 620G with kingoroot. After rooting the phone is not getting charged while its switched on.

The phone can be charged by switched it off. Also the phone can not be connected with Laptop via USB, hence I am unable to unroot it again.

It seems like kingo has blocked the charging/USB port.battery is draining very fast. I have reset the phone but no luck. Can anyone help??


问:
How do I enable MTP on S4 with Lollipop
I have a Samsung Galaxy S4 running Android 5.0.1. I don't know the last time I tried accessing the phone with my computer but it worked using MTP.

Now I struggle enabling MTP. The phone prompt (asking for MTP/PTP) won't appear. I double checked it with another PC so the USB port doesn't seem to be the problem.

I followed this little answer but I don't have the three dots (aka context menu) on storage settings.

My PC is running Linux. But I don't think this is the problem as the phone prompt does not appear and the device is not even recognized (no /dev/-entry). But to be sure I additionally installed mtpfs and mtp-tools just to be sure. But it didn't help.

Oh. I'm using encrypted device with encrypted SD card. Does this disable MTP at all?

Title: How do I enable MTP on S4 with Lollipop


问:
Lenovo S850 crashes randomly!
Lenovo crashed randomly thrice this week. The screen each time just went black and the phone would not turn back on afterwards when power button was pressed and held; however, after a few hours it would turn on by itself. When the phone is in a such a "blackout" (sorry for a lack of a better word) and the power button is pressed and held the screen flashes for a short second but then  becomes black again. Before it crashes, the phone does not freeze or get stuck, i.e the phone is running fine before it just blacks out. The phone runs quite smoothly otherwise. RAM isn't the problem as well.

I don't know if this is related or not but the apps being used when the crash occurred were youtube and two gaming apps, including Cheating Tom.

What should I do? Should the phone be taken to an expert or can I do something to fix it myself?

Title: Lenovo S850 crashes randomly!


问:
How to change default dialer app in Asus Zenfone 5?
How can I change the default dialer app in Asus zenfone 5. I tried Settings → Apps → All, then selecting the phone app. There was a Clear defaults button which was greyed out.

Do I have to get root access to change it?

The purpose of it is to automate a conference call using uiautomator and adb shell. For this reason we are supposed to have a same UI for all devices so that we can automate it easily.

But right now, even when I call with Truedialer I get this default screen that I used earlier. The resourceid is com.asus.asusincallui:id/holdButton.

(Click image to enlarge)


问:
Are there other ways to enter fastboot mode if the power button is broken?
I've dropped my phone (ATRIX HD) and now it isn't turning on. The thing is when I connect to charger it shows the green light and start to boot (Motorola logo appears) but then it keeps restarting forever.

I've read that to solve this you've enter fastboot mode and do some modifications. The problem is that I'm unable to enter fastboot when the phone is connected to the PC instead of the charger.

Since the power button broke it gets even harder because I have to use a mini screwdriver to press it (and it is very hard to press the "Volume Down" at the same time also).

So, is there any other way to pass the files needed for recovery or to enter fastboot mode?


问:
Recovery mode on android netbook?
2 years ago I was given a netbook for Christmas and it came with the Android 2.2 OS. Since then I haven't used the netbook much but recently I decided to put Linux Mint on the netbook. But I didn't get that far – as when I turned the device on (and before I could do anything), I was stuck on this screen:

(click image for larger variant)

So I couldn't put Linux mint on it because it is stuck on this screen.

The netbook worked when I first got it. It doesn't have volume keys and I've tried presing Fn+F2+Home. I have also tried pressing F2 and nothing happens. I'm at a loss for new ideas on how to fix this so my plan is to try and get into recovery mode so that I can flash another version of android to it.

So my question is how do I get into recovery mode.

I have also tried holding Power On+Home and nothing happens.

Title: Recovery mode on android netbook?


问:
Why does Google play services stop working in restricted accounts?
With many apps, my son's restricted account gives an error about Google play services having stopped, and the game quits.  I'd there a way to fix this?</p>


问:
Custom Google Contacts list view in Xiaomi Mi4i
I am an Indian residing in the UK, and the phone is bought in India.

Phone Model: Xiaomi Mi4i

Android Version: 5

MIUI Version: 6

Problem

I am an avid user of Google and I have my contact lists grouped this way in Google:

My Contacts

UK Friends

India Friends

Stack Overflow

Directors

Phone Contacts

As everyone know, the contacts can co-exist i.e., if Praveen is found in UK Friends, it can also be found in Phone Contacts. What I have done is, the group Phone Contacts has all the contacts that are supposed to be displayed in the phone, and currently I am using my Lava Iris 504Q phone, that shows my contacts in Custom View, where it displays only the contacts from Google (Account) » Phone Contacts (Group).

Currently using my Lava Mobile, what I can do is:

 (Click image to enlarge)

Step 1: Open the Contacts App. Tap the menu and tap on Contacts to Display.

Select Customize from the next menu, that displays all the Accounts that are configured in the phone.

The Define Custom View screen appears and again it shows all the Accounts that are configured in the phone.

This view provides me a checkbox view, where I choose to display whichever contact group from any account that is configured on this phone.

Is the problem understandable? Can this be sorted out?

But this process is not there in my new phone. Currently I have:

See the order of images as Step 1 → Step 2 → Step 3:

 (Click image to enlarge)

References

The best reference for this issue I could find is on the MIUI Forums. The other reference for the custom contact view is here.


问:
Routing instead of NAT/Masquerade for WiFi Tether clients
When clients connect to Android Tethering they get IPs of the private Tethering networl. There is plenty of info available on how to NAT/Masquerade WiFi tethering clients (for example into a VPN), but I haven't managed to find how should I change or re-write IPTABLES and ROUTES in order to avoid natting/masquerading and just make ordinary routing from the tethered devices IP to the other networks (or a VPN).

Example:

Local Tether client 1 gets : 192.168.43.1/24

Local Tether client 2 gets : 192.168.43.2/24 ...

and at the VPN interface we have the 10.1.0.0/24 Network.
Disabling NAT and adding the routes in an ordinary router is easy, but I need help to do it on my Android device.
Thank you!


问:
What are these small 8-4-4-4-12 hexdigits-named files in root dir?
(Post edited to add more info.)

My Android phone contains, in the lowest user-accessible directories of both phone storage and SD card, several small files named xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx where x is a hex digit.

There are three of them in the phone storage /sdcard (all zero size), owned by root:sdcard_rw and mode 664.  And there are six in the external SD card /mnt/extSdCard (some zero size, some 36 bytes long), owned by system:media_rw and mode 775.  Dates range from 2013 to one week ago.
All files are readable, and those who aren't empty contain only a string which is identical to the filename.

I was curious to know what is the purpose of these files and if they can be deleted safely.

Is it a coincidence that they have the same format as an UUID?


问:
Where is the recovery installed on Android phones?
As far as I know, every Android phone has a stock recovery. Where is this recovery usually stored? On a separate partition in internal storage(usually an eMMC memory chip)?</p>


问:
LG l70 DBI Err Fatal - boot up display stuck here
I had LG l70 and I have rooted and fully unrooted it few times. Recently I fully unrooted it and factory reseted because I had intention to sell it. I left Lg l70 in sleep without battery in it for about 2 weeks and then I wanted to sell it, but when I booted up phone I got DBI Err Fatal. I have searched and tried every method to solve this, but the problem is I can't get phone to download or recovery mode. Everytime when I try to do it, it just displays DBI Err fatal. Even my computer can not recognise phone through USB connection. I am desperate for help.

Sincerely, divjad---

Here is the image of what it looks like everytime when it boots up.


问:
Digital Clock Widget
I use the Digital Clock Widget on my Samsung S4 Mini. Recently, I have noticed that when on 'Lock Screen' as small 'Qo' is displayed below the date:

Screenshot (click to enlarge)

Anyone able to help identify this?

Title: Digital Clock Widget


问:
How do I check which apps are hibernated the most by Greenify (so that if I don't use them, I can freeze them)?
I'm on a rooted LG G3 and running Android 5.0 - I have the paid versions of Greenify and Titanium Backup on my phone.

I just want to know if there's a way to check which apps are hibernated most often by Greenify so that, if I decide that there are often-hibernated apps that I don't really use that much, I can opt instead to freeze them using Titanium Backup.


问:
Android detects bluetooth gamepad as mouse
A couple of days ago I bought a bluetooth controller(Steelseries FREE Mobile Wireless Controller), but unfortunately my tablet detects it as mouse(I can move pointer with left analog etc.).

I have written a message to support, and they replied that they are sorry but there's nothing they can do...
So I decided to fix it myself. Some games that support keyboard controlling I can play with an app called Bluez IME. But all of the other - not :/

I started logcat in terminal and I've discovered that after I connect my gamepad, it loads hid-keyboard layout and says it's "keyboard mouse"

Below is photo of terminal with important part of logcat(Sorry it's a photo - I'm in a hurry)

So my idea is to load my own prepared key layout file instead of hid-keyboard.kl, but I don't know how to achieve it.
Any help would be appreciated :)

EDIT:

dmupsys input also didn't give me a lot of information: device is called hid-keyboard(while on my phone it's full name of device), its Identifier is:
"bus=0x0019, vendor=0x0000, product=0x0000, version=0x0000" - that's why my configuration file didn't load, but I can't call it "vendor0000product0000.kl", because my tablet sees a couple ofother devices with this identifier :(

My guess would be that it's some system app that hijacks input from gamepad and gives me mouse pointer - it would be fine, but when I enter some game, it's still a cursor :<


问:
How to record a game music in Android?
I failed to find the background soundtracks for some Android games, so I thought I could just record their music when the game is active but I don't seem to have any solution to do so.

I first thought of using some Android apps but all I see in Play Store and forums are links to apps recording voice of the user or the external environment (using mic) while I'm interested in audio I hear from speaker or earphones.

I also came to know of screen recorders but my default screen recorder records sound using mic and using screen recorder is an overkill since it tends to use a lot of CPU which is needed for the game. But I'm open for any suggestion.

Then I thought to find a file or something under Android which may be redirecting output to earphones or speaker or may be grab that final end and save it using ADB, but I seem to have no idea how to do that.

I would like to draw attention specifically to the said ADB part i.e. anything related to Android that could solve the problem since the other parts or even the title might be considered off-topic for being Android Independent.

So, how exactly do I record my favorite game's music?

Note that the question can be extended to any app, be it a media streaming or lecture app, or anything that plays sound and user wants to record it.

I'm using OnePlus One running CM12 and is rooted.

Title: How to record a game music in Android?


问:
How to manually upgrade rooted Lenovo Vibe X2 to Lollipop?
I have Lenovo Vibe X2-CU edition that was come rooted and has Android 4.4.2, how I can manually upgrade the device to latest official ROM and where I can get this ROM ?

I am new to this process so please give full details.


问:
System UI Crash on Boot
I was playing with the developer options on my Droid Turbo, and I think I accidentally hit Force RTL Layout, which crashed System UI. I tried rebooting and now it also says "Unfortunately, System UI has stopped". I cannot access any apps or settings, even in safe mode. Is there any way I can turn this setting off or reset the developer options, maybe through a computer? I would like to not have to do a factory reset. I am running Android 5.1</p>

Title: System UI Crash on Boot


问:
Google Play Games fails to find "Public Google+ Profile"`
I created a "Public google+ profile" after the first time it asked me, but it just endlessly asks for this every time I try to launch Google Play Games, or any game that relies on it.

I deleted cache, deleted data, and running short on ideas here.

Is this something that's known?

Does my Google+ profile need to be more public?

Does anyone know the requirements on a Google account for Google Play Games to be able to find it?


问:
WiFi does not work properly on my phone only
This problem occured randomly. I have this problem for a week now.

My phone does not connect to the router, although it shows it in the list. If I get very close to the router (max. 2-3 meters) it does work.

I have tried setting the router to 5 or 2.4Ghz and tried different channels. The router does not show any problems. Also deleting the WiFi profile on the phone and re-adding it normally or via WPS does not help. I even installed another ROM on the phone (was on a 5.1.1 ROM, changed to stock one).

The connection works fine on at least 10 other devices (no, they are not connected at the same time, that's not the problem ^^)

Phone: Sony Xperia Z, newest firmware (Android 5.0.2)
Router: Fritz!Box 7490, newest firmware (113.06.30)

Thanks for your help!


问:
After resetting, phone is crippled
I got an old HTC Wildfire S from someone, without a SIM card, but I won't need one since I'll only be using this for testing purposes. Now the first thing I did was give it a hard reset to get rid of all his old stuff, his Google account etc.

Maybe I shouldn't have. Or maybe I should have backed up everything first. So it's really my fault. Anyway, this is what I have now.

The home screen is black. There's nothing on it, no background image, no icons, nothing

There is no keyboard. Tapping in a text field does nothing

In Settings, many items give the error "The application Settings (process com.android.settings) has stopped unexpectedly"

I can't connect to my Wifi, because the WPS button doesn't do anything. (And I can't type in the password to my modem manually, because there is no keyboard to type on.)

Restart > Recovery no longer works properly; this does the same as a normal Restart instead of booting into the Recovery console

So, does anybody recognise these problems, and do you have any idea what I can do about them?

Title: After resetting, phone is crippled


问:
samsung galaxy s cannot add google account
My HTC was run over by a bus and I am temporarily using my Samsung Galaxy S whilst the phone is being repaired.

I discovered yesterday that my google account was syncing.  I was able to login into my gmail via the internet but the account would not allow me to sign in via the gmail/ youtube or market app.

From reading around it appears these apps need to be updated but there is no update option in settings.

When I try to access the play store via the browser to download , it says it is no longer supported.

Any ideas?


问:
File copied to /system/bin keeps disappearing
After copying Sqlite3 to by /system/bin folder, the file disappears.  I can successfully change the folder to rw and modify the file properties on sqlite3.  However, as soon as I remount my /system as ro, the sqlite3 file disappears.  I have attempted this using these instructions, from both a terminal session on the phone and adb session from my pc with the same results.

Here's what I've tried:

```<code>mount -o remount,rw /system
cp /sdcard/sqlite3 /system/bin (ls confirms that the file is present)
chmod 4755 /system/bin/sqlite3 (SQLite command works)
mount -o remount,ro /system (file is gone)
</code>```

I also tried copying SQLite from my TitaniumBackup folder, but with the same results.  Although, calling SQLite from this folder seems to work.

And, I tried using File Manager with root to copy and set permissions on the files, also unsuccessfully.

And, I have also tried SQLite Installer for Root, but it hasn't worked.

My device is a Sprint HTC One M8, rooted with TWRP, Android 5.0.1.

This question is very similar to this old, unanswered one on StackOverflow.

UPDATE 2015-07-27:  I have used @Izzy's suggestions and run a logcat and collected the file (actually several repetitions). After searching the files for anything related to any key terms (e.g. sqlite3, mount, chmod, remount, cp...) I can't find anything of obvious value.  Of course, I've never done this before, so I don't have any experience parsing or interpreting these files.  Any other thoughts/directions would be appreciated. FWIW, for the short term, I'm using the TitaniumBackup SQLite file, so my immediate problem is solved-not it's just personal between me and my OneM8!

UPDATE 2015-07-28:  This problem affects any file I try to copy to /system/bin-they're all erased/removed upon a reboot.  I also tried from TWRP Recovery's file manager with the same result


问:
Lenovo Update failed. Stuck in recovery
Today my Lenovo A6000plus said there is an update to download, and I clicked it. It was a 9MB download. Download went fine, and to update it restarted to recovery. I think there is some error in the downloaded update. It is now stuck in recovery mode. I tried wiped cache, and factory resetted it through recovery, Still no change. It was rooted, but no CWM installed.  What should I do?

Urgently need help.

Thanks

Title: Lenovo Update failed. Stuck in recovery


问:
How to remove spywares from factory reset list?
I have a lenovo phone with Android in it. The phone is so infected by auto installed apps for the past few weeks that I've decided to do a factory reset. However, the factory reset happen to reinstall all of those unwanted apps (Takatap, EasyTouch, OmniSwipe, Privacy Guard etc)

Even when I uninstalled those apps before factory reset, it got installed back by the factory reset itself.

How do I remove these apps?

I've tried:
- Disable auto restore
- formatted sd card


问:
Samsung syncing messages but not contacts on Galaxy S3
I messed up bad and lost all my contacts/messages when I tried to install another OS on my Samsung Galaxy S3. Now I have gotten the operating system back and Samsung Account let me retrieve my messages.

But not my contacts. I've checked all my Google accounts that I might have had synced on the phone using my PC web browser, but none of them had any contacts.

Is there any way to restore my contacts via Samsung? Or any chance I could restore them another way?

If anyone cares to hear the (almost) whole story in short:

I decided to change OS and so I rooted the phone (never done any of this   before) and made backups with Titanium Backup (TiBa).

I couldn't restore the contacts to the new OS with TiBa, guessing because it was only for the old OS.

So I reinstalled my old OS but it wouldn't boot so I had to do a factory reset as well. Which I heard would leave my data on the SD card untouched.

Well it didn't. So I lost my backups as well. I should have moved it to the computer, but I was lazy and had already started to install the old OS.

Luckily, I can at least get all my messages back because of the synced data.

Edit: Ah, also, before I did any other backup (which I lost) I did copy everything from my phone to my PC  using Windows Explorer, but I don't think that included my contacts. I have a folder  .../Android/data/com.android.contacts  but it's empty except for an empty cache folder.


问:
How to lock the pull down menu / sound settings
I am using Android 5.1.1 on a Nexus 4.

When the screen is locked, I still can change the sound settings (mute, volume) and I can pull down the top screen menu with the settings for WLAN / Bluetooth, flashlight and so on.

Sometimes I do switch those settings accidentally when the phone is in my pocket, so the light goes on and the battery is finished fast.

How can I lock those settings?


问:
Factory reset without resetting settings
On a Sony Xperia, there is a way.to reset the settings, and not data. Is there a way to reset the data, without resetting the settings. I am not accepting any methods needing root. I find it a hassle to even look for the bootloader on this thing.

Why? I have a tank setup for my battery, and all sorts of power optimization settings. (They are Xperia only settngs)I don't want them reset when I clear my data

Using Sony Xperia E C1505


问:
Samsung Galaxy Core Prime non responsive touch screen and back button for a while
I am using Samsung Galaxy Core Prime. Everything has been running smooth except the fact that for sometime I'm facing a strange problem of touch screen as well as touch button (Back button) at the same time. For example, when I chat using either Facebook Messenger or WhatsApp, sometimes I observe while typing in the keys the screen behaves abnormally i.e. if I try to erase a character there appears a new line or so. The keys don't respond.

At the moment, if I touch the Back button instead of going back to the previous app a new app appears (say Google+ here). Moreover, if I try to swipe down to go to the settings at the same time it pops down partially and disappears. The touch screen doesn't work entirely for a while. The problem vanishes automatically after a while, but very annoying as it occurs repeatedly.

I have 360 Security Antivirus installed and scanning shows no viruses either. What is the cause of this problem?


问:
problem loading fastboot and recovery
I have a Croma CRXT1125 tablet. I was trying to flash a custom recovery and some problem occurred. The recovery failed to flash and the stock recovery is also not opening now. Stock recovery worked fine earlier but now when I press vol down + power button the options for normal boot, fastboot mode, and recovery mode appear; when I try to open recovery mode it just shows the name of the tablet as in boot screen and switches off and then switches on after few seconds to boot into normal mode.

I think I have deleted my stock recovery by mistake. Apps like Flashify require an already installed recovery and thus they too shut down the tablet AND THE SAME THING REPEAT itself.

So I tried AIO flasher on PC. It required my tablet to boot I fastboot mode. But when I tried to boot into fastboot using the same way as recovery vol down + power and select fastboot the tablet suddenly hangs and I have to hard reset it.

In simple words: I cannot open recovery nor fastboot and thus I'm unable to flash a custom rom. Please help anyone.

Title: problem loading fastboot and recovery


问:
How can I control my tablet from my PC, while using it as a second monitor?
I have a not-so-powerful computer, and sometimes, when I'm running games, tabbing out is bothersome. I managed to connect my android tablet as a second monitor for Windows, however I'd like to shift workload even more, by using the Android OS, and not just streaming Windows's stuff to the device.

Basically, I'd like something like this:
I'm playing a game, I decide I want to lookup something on chrome, move mouse to the left/right, it appears on my tablet, I open the chrome app, and google what I was looking for.

Is this possible, and if yes, what apps do I need?


问:
Is Link2SD completely safe on a rooted device?
I have a rooted device, and I was wondering:

Is Link2SD app safe to allow root access to? Is it a scam or anything?

Does it work as is says it does and does it actually save the stuff to the SD card?

And can it break or damage my device or apps in any way?


问:
Do OTA updates accumulate if you let them be? Or are they strictly incremental?
I'm on a Nexus 5 running 5.0. I used to get a system update notification for 5.0.1, but since I have Xposed, I decided to wait. After a while, I started getting an OTA notification for 5.1. What will happen if I choose to update? Will it automatically first install 5.0.1 and then 5.1? Or do I need to search online for an OTA zip for 5.0.1, install that and then proceed with 5.1?</p>


问:
SELinux context init_shell in boot.img permission denied with Android 5.0.2
I'am used to start a service in the android boot image with inherited context of the init.rc script (u:r:init:s0).
In Android 5.0.2 (Samsung), my service does not inherity the init context anymore, it has to be set explicitly.
The tool sesearch allowes to find the corresponding domain to the filetype. This is an output of a rootfs executable search:

```<code>allow init_shell rootfs: file { ioctl read execute open ... }
</code>```

This means that the init_shell context is able to execute rootfs labled files.

```<code>-rwxr-xr-x  system  system  u:object_r:rootfs:s0  my_binary
</code>```

But if I set the init_shell label of my service in the init.rc script (running as init) , I still got permission denied in the dmsg output.

```<code>service my_service /my_binary
    user root
    seclabel u:r:init_shell:s0
    oneshot
</code>```

Does this error refers to the executing of the service, meaning the init_shell context does not have permission to execute a rootfs file or does it mean that init is not allowed to set the init_shell context?

I've already tried other contexts like "shell" > "shell_exec" with the same result.

If I do not set the context, I receive a warning about a missing selinux context, but the file will be executed, unfortunately without the needed permissions.

UPDATE:

Injecting the permissive statement to the init_shell context works. Is there no other way to use existing contexts to stay enforced? my_binary should run as deamon with init_shell context to hand over its context to other processes.


问:
How to stop Sony Xperia Z3 Compact making noise on using camera button?
I've got a Sony Xperia Z3 Compact running Android 5.0.2, and is not rooted, which has a button that instantly wakes the phone going straight into the camera app.

One problem - unless Media Volume is at zero, pressing the camera button makes a distracting and annoying tinkling sound.

It does this despite the fact that:

I already have "Sound" turned off in Camera settings. This turns off noises like the shutter sound, but doesn't stop the camera button sound. It seems the phone thinks "camera sounds" and "camera button sounds" are completely unrelated things.

I've turned off all the Sound options under the phone's system settings.

How can I turn off this specific "camera button" sound? I've looked through the system settings but can't find anything relevant.

Right now my "workaround" is to always turn media volume to zero after every time I do something which uses it, but this is far from ideal.


问:
Connect Samsung Galaxy Heart Rate Monitor to fitness apps
With the fitness tracking revolution, I'd like to pair my heart rate to tracking apps. Is there a way to do this? It works with "S Health" but I want to EXPORT that data automatically or put it into another app.

For example, if I could upload my heart rate number into a Nike app, then use IFTTT to upload that to google spreadsheet, then use Zapier to connect it to beeminder, then I could be charged $5 if I don't work out that week, as PROVEN numerically by a heart rate sample from my android.

Or I guess I could just use gympact, but that doesn't user the heart rate monitor =/


问:
Can Samsung patch security faults on their devices by an update?
There was an exploit that turns Samsung Galaxy phones into remote bugging devices (reference: ArsTechnica)

As many as 600 million Samsung phones may be vulnerable to attacks that allow hackers to surreptitiously monitor the camera and microphone, read incoming and outgoing text messages, and install malicious apps, a security researcher said.

The vulnerability is in the update mechanism for a Samsung-customized version of SwiftKey, available on the Samsung Galaxy S6, S5, and several other Galaxy models. When downloading updates, the Samsung devices don't encrypt the executable file, making it possible for attackers in a position to modify upstream traffic—such as those on the same Wi-Fi network—to replace the legitimate file with a malicious payload.

Is there a way for Samsung to patch this security fault by an update? Also, how can I find out if the Samsung phone I'm using is affected by this fault?


问:
My gallery shows nothing
I've searched high and low and cannot find a solution to this problem. The other day I wiped my phone for various reasons. Ever since I did the wipe the gallery does not display any of the images that are already stored on the device. If I take a new picture it will go right into the /sdcard/DCIM/Camera directory and it will display in the gallery. Same thing happens if I download a picture it will go into /sdcard/Download and will display in the gallery.

However, any of the images that are already in any of the folders on my sdcard do not show up in the gallery. Is there a way to force the gallery to scan the sdcard or something? Thanks in advance.

Title: My gallery shows nothing


问:
Where can I find the Chrome bookmarks stored locally in Samsung Galaxy S6?
I'm freaking out as my Chrome browser on my rooted Samsung Galaxy S6 got reset after using Datasync, and when I opened my Chrome browser it showed as a fresh install. Like never used before.  I had months of research in my bookmarks which I now see did not get backed up.  Now would the bookmarks be stored locally on my S6 somewhere so I can access that info???

And I didn't sync my Chrome bookmarks to the cloud since before I kept losing bookmarks by synching across devices.


问:
How do I get MyBackup Pro to back up Chrome bookmarks and not the stock browser?
On my S6 I thought my Chrome bookmarks were being backup to the cloud using MyBackup Pro only to find it just backs up stock browser bookmarks.  Other backup apps in the Play store back up so many things like SMS etc. but how do I backup just the Chrome bookmarks locally or in the cloud?  Google's own sucks.</p>


问:
Cannot install Google Camera on Nexus 5 running CM 12, neither from Play Store, nor with ADB
I need to reinstall Google Camera, and I tried to remove it via Settings -> Applications. Everything went fine, but when I tried to install it back via Play Store, it said:

Unknown error code during application install: -505.

I've then attempted to install it's APK via ADB. It showed the error  INSTALL_FAILED_ALREADY_EXISTS. But I'm pretty sure it's removed, I've checked /system/app, /data/app, and /data/data for any residual files, but there's none.

Installing APK with -r key yields INSTALL_FAILED_UPDATE_INCOMPATIBLE.

Package manager  pm list packages doesn't list Google Camera, which is only logical, since it's removed. But then how could it "already exist"? I wonder what to do and how to bring Google Camera back.


问:
Can I receive security updates without upgrading from KitKat to Lollipop?
I have a Samsung Galaxy Tab S tablet, and it's currently running the stock Android 4.4.2. A friend of mine had her Galaxy S5 upgraded to Lollipop, and i personally don't like the way it looks, especially with no dark theme available. So i simply ignore the software update notifications my tablet keeps giving me, since they also promise me that upgrade to Lollipop.

Considering the yesterday's statement from Zimperuim about a critical vulnerability in the Stagefright library, I'm really concerned about getting a security update for it when it comes, but still I really don't want to jump onto Lollipop for the sake of it.

So does anybody have an idea how to stay on KitKat while keeping the security up-to-date?


问:
AdAway and Xposed Framework unable to edit system files in a rooted Huawei Ascend Y330
I rooted my Huawei Ascend Y330 using King Root (verified it with Root Checker). The problem started when I was trying to install AdAway and Xposed Framework. They both are unable to edit files. I already tried to change permissions with Root Explorer / Root Browser, but I keep getting the same error.

Screenshots of the errors (Click image to enlarge)


问:
Same Number, different area code
I know there was a similar question asked earlier
Same phone number with different code problem
But none of the answers are of any help and it is now 4 years and several versions later. There was even a bug report opened on the issue that is now marked as "obsolete" but I am still having the issue.

https://code.google.com/p/android/issues/detail?id=18684

Phone: Samsung galaxy s4 i9505

Version: 5.0.1 Lollipop

Issue: two different contacts with the same number but different area code

eg

Larry: (411) 123-4567

Sarah: (909) 123-4567

When a phone call comes in from either number, Larry's contact info (picture, name) is displayed in caller Id.

Any suggestions?

Title: Same Number, different area code


问:
How to view my Google Searches archive on my S6?

I downloaded the SEARCHES archive from Google web history but when I open it with a HTML viewer or any other app it looks like a bunch of gibberish/code on the screen.  What am I doing wrong?


问:
How to disable or remove the predefined setting for long press Home button in Samsung Galaxy S4?
I have a Samsung Galaxy S4 running  Lollipop 5.0 update. The phone's OS has designated the long Home button function (hold it down) to access the task manager.  I want to disable, remove or change this function.

I have tried eight different applications for Home buttons and none of them work as they only work for one or two tap functions.  While this may not sound major, it is very major to me and my needs.  I only need to be able to access the task manager from settings.

Samsung has advised that I can't change it.  I have searched the internet and forums high and low with no result.

I have never installed a new OS or anything like that, but I will have to get rid of my phone if I can't fix this problem.


问:
Can I get the delta Cyanogenmod files?
I have a Cyanogenmod nightly build installed, and I want to update it.

Unfortunately, I don't have WiFi but only an ethernet connection, so I'll have to install it from a computer.

Is there a way to download the delta file which I get from the phone?

Title: Can I get the delta Cyanogenmod files?


问:
No Keyboard on Android Device Manager lock screen in Cubot X9 running Kitkat
I have locked myself out (forgot numeric PIN) of my Cubot X9 running Android 4.4 (probably, I am not 100% sure, but as it seems there is no vendor update on Lollipop available, and I definitively didn't update it manually).

So I logged in into Google's Android Device Manager and replaced my PIN code with the password specified in the form. It gets applied, as I see the new lock message, but there is no keyboard to input anything. It looks like this:

But no keyboard is showing. When I hit the return button or the home button I get back to a screen where I can enter a numeric pin (the original password)? But no letters are available.

If I press on "Emergency Call" and go back, I also come back to the PIN lock screen.

How can I enter my ADM password? Is there anyway to bypass the locked screen without losing data?


问:
Mute an APK file
How to patch an APK file so that its permanently mute?

For example if I want to send a game to my friend but don't want him to hear its sound?

Can I edit permissions related to Audio?

Title: Mute an APK file


问:
SIM Toolkit keeps disappearing from app drawer
I purchased a phone sometime back (LG G3) that initially came with Android Kitkat. Eveyrything worked beautifully until I upgraded to Lollipop. Many things suddenly broke but my main concern is the SIM toolkit disappears a few minutes after reboot. I use the toolkit a lot and it's a pain to have to reboot the phone twice or thrice a day.
Can this be fixed or the phone is now forever broken?</p>


问:
User profile Freezes in Android Lollipop
I created a new user in my MotoG Android Lollipop and, sometimes while i'm in this new user, my actual aplication freezes by undetermined seconds, and sometimes minimizes the aplication. I only can acess the header menu when it occurs (and I change the user in this case, mainly), even the app list does not work for sometime.

Also it not occurs in the main user. There is a reason for this problem? And I can do something to fix it?


问:
Can I add a Wi-Fi connection to the Trust Agent so as to avoid unlocking phone at home?
I have the Vodafone Smart Ultra 6 which runs Android 5.0.2. Is it possible to add a Wi-Fi connection to the "Trust Agent", so  that I don't have to unlock my phone when I'm at home?

I have found how to add Bluetooth/NFC and locations using the Location service, but none of them are really suitable for what I want.


问:
Recover data from a Nexus 4
The touch screen has stopped working. The side buttons still work.

No backups to any cloud services/pc and no sd card. No special apps installed.

Am I able to recover the data? I don't have any special equipment.

Title: Recover data from a Nexus 4


问:
Prevent Glympse from stopping sending my location due to low battery
How can I configure Glympse so that it doesn't stop sending my location due to low battery?

Screenshot - (Click to enlarge image)


问:
How can I root a Lenovo S660?
I want to root Lenovo S660 and I came to know that Framaroot will help me in doing that; however, it doesn't work.

On this site it says that
after installing framaroot click Boromir and it will pop up a SUCCESS dialog (the device is rooted). But it doesn't happen for me and the device does not get rooted.

What are Boromir, Faramir, and Barahir?

Title: How can I root a Lenovo S660?


问:
How do I connect my Android Device to an external touchscreen?
I would like to know if there is any chance to connect my device to an external, touch sensitive display, such as ordinary touchscreen monitors. If yes, then how do I do that?

There are many solutions out there or coming up that would might be an option but I could not find anything related being close enough to my question.

Those solutions are:

Matchstick

PiCast

AllCast

Raspberry Pi

I found similar reads:

How can I connect an Xperia X8 to an external monitor?

USB touchscreen on Android 4.0.3 -> not possible to select (only moving the pointer)

Connecting Android tablet to external Touch screen

But the final end user friendly step is still missing.

It would be nice to have a kind of reversed iDisplay, simple and user friendly. I just don't want to buy anything additional just for the bigger screen when my smartphone has already all the necessary hardware.


问:
Are there any browsers out there that don't drop my browsing session?
I own a Samsung Galaxy S3 ( rooted, not custom-rommed, and running kernel 4.3 ), and often, I would be browsing an interesting site, or an article, and I would get back to work ( hehe ;). Hours later, to my chagrin, I would find that my browser dropped my browsing session, and I'd have no idea on how I landed on said article. Currently, I'm using worst-of-the-worst stock browser, Google Chrome, Firefox, Opera, Dolphin, and InBrowser, and the closest to do this is Opera. The problem that I have with Opera, is that when I'm browsing privately, the problem I just described happens within ten minutes of switching to another task.</p>


问:
Tilting Huawei Ascend Mate 2 just right displays a gray screen with a clock
I can be in a game or any other up, but when I tilt my phone back a little to avoid glare, this notification thing comes up with a clock. If I hold it just right and scroll right it shows me the weather and the status of my internet, data, bluetooth and GPS.

It is really annoying and I have no idea how to stop it from happening. I am trying to snap a screenshot of this and if I manage to, I will upload it.

Any ideas?


问:
Audio applications (spotify etc) continue playing when bluetooth calls come in
When I'm in my car and listening to the ESPN Radio app, the Spotify app, or the Soundcloud app, and I receive a call either on my bluetooth or the d/c phone itself, the audio application keeps playing the podcast or music over top the call. This only happens some of the time, sometimes it pauses as it should.

Also, this may be related. If I get in the car after using spotify on headphones, it will start playing on the bluetooth even if I had paused and closed the app long before. I'm not sure if it's related, but it's more strange bluetooth issues.

My phone is a completely up to date Samsung Galaxy S5 with no alterations like being jailbroken or anything. Just a base model S5. My carrier is ATT.


问:
samsung tablet not connecting to my wifi router
I have a samsung galaxy tablet. Before 2 days it was connecting to my home wifi router. But now it is not getting connected to the router and it can not find the home wifi network. all other surrounding wifi networks are detected except my home wifi network. I have tried to factory reset many times but still same. need help</p>


问:
S5 "Recommended Apps" & "Toolbox" crashed when selected
I just got my new S5 and I restored system data from Titanium Backup from my old S3 which crashed the "Recommended apps" and "Toolbox" functions when selected in Settings.

When either of these two were selected,  the message "Unfortunately, Settings have stopped" appeared.

I'm running Samsung stock ROM Lollipop 5.0. Are there any ways to restore these two settings by flashing some zip files?


问:
How do I install CM11 on YU Yuphoria?
I have recently bought YU yuphoria which came with CyanogenOS 12 . But I am having so many issues with Android Lollipop like many other users.

Now, I want to install CM11 which is working great on my friend's YU Yureka. I have downgraded YU Yureka from CM12 to CM11 by following this link.

Can I do the same with the YU Yuphoria?

Title: How do I install CM11 on YU Yuphoria?


问:
HP Slate 7 will not charge
My sister got a quite new HP Slate 7 running Android 4.1.2, but the tablet won't charge. When I charge it while it's running, the charging is flickering between charging and not charging. If I charge while it's turned off, it displays the battery with a triangle and an "!" (exclamation mark).

It has been a permanent problem, but we used to be able to workaround it by tilting the device, sometimes that got it charging.

Any ideas?

Title: HP Slate 7 will not charge


问:
How to backup media without logging into the phone?
The screen of my phone is not responding. I tried to restart the phone but this didn't correct the problem. Now, I can't access it, and log in to my phone, so I probably need to take the phone to the SAT. But maybe, I will lost all my photos, videos and music.

My phone is not rooted, and I have not installed Helium or Titanium Backup. So, is there any way to backup all files of my phone, without be logged in with ADB?


问:
Smart Lock Timeout
With my MotoX (pre-Lolipop) I could unlock my phone via the Motorola Skip app and a trusted NFC device.  Post-Lolipop, the Skip app no longer works, but the NFC unlocking is now built in.

The problem is that every 4 hours the trust is expired and I have to unlock with my password again.  Is there any way to change the 4 hour timeout or disable it altogether?

Title: Smart Lock Timeout


问:
How to control other apps using air gestures in s5
I have a Galaxy S5 and I love using air gestures with samsung apps but I wanted to know if they can be made to work for google apps as well</p>


问:
Mute the autofocus for the camera on samsing galaxy S3 i9305 (4.4.4) for the video mode
I have done the follwoing to silence the camera :

Renaming the files in system/media/audio/ui/

Adding this line to system/csc/others.xml <CscFeature_Camera_ShutterSoundMenu>true</CscFeature_Camera_ShutterSoundMenu> and setting to true <CscFeature_Camera_EnableCameraDuringCall>true</CscFeature_Camera_EnableCameraDuringCall>

Checking if <ShutterSound> was set to off in system/csc/customer.xml

Adding ro.camera.sound.forced=0 to /system/local.prop and /system/build.prop

Steps 1 and 2 were the only things that worked. I now have a silent camera for the photo mode (even the autofocus sound I gone!) BUT I still have the autofocus sound when I am on the video mode. The Shutter Sound option doesn't appear in the menu when I am on the video camera mode, but it does when I am on the photo mode.

Any idea how I can add the Shutter Sound menu entry to the Setting menu for the video mode of the stock camera app?

I am aware that disabling the camera sound is illegal in some part of the world.

Edit: using Tasker to switch to silent mode when the app is open is not an option.


问:
Stolen phone: Is there any way to get Automatic Call Recorder recordings that were set to be stored in SD card?
I had extremely important calls recorded of ex-boyfriend threatening my life and admitting to the things he did that I'm taking him to court for. But my phone was stolen recently, and I had only set the app to save the recordings to my SD card.

Is there a  way to retrieve those recordings? Maybe they are saved somewhere I just don't know about?

When I got my new phone I downloaded the same app and these recordings are saved to my Google drive, but old ones aren't there.


问:
ifup/ifdown scripts
I am fiddeling with some network related things and want to try them on Android too. In Ubuntu it was quite easy to run some commands if an interface (eth0 or wlan0) goes up or down by simply adding the script call to /etc/network/interfaces.

How can I do that in Android?

There is no such file, and I could not find a way to have my script executed on every network up/down.

I have root, and I am running the latest CyanogenMod. I would also switch the ROM if needed.

Title: ifup/ifdown scripts


问:
Error: package x.x.x is unknown, for "run-as (classname)" command on Samsung Galaxy Note 10.1 running Android 4.4.2
I'm using a Samsung Galaxy Note 10.1 tablet, Android 4.4.2.

As a developer, I need to be able to see my files in /data/data/(classname), but I don't want to root my tablet.  Found out one can read files in /data/data/(classname) by using run-as (classname) after getting into the shell (i.e., adb shell), but this is giving me "package x.x.x is unknown".

Seeing, upon searching, that this is a Samsung issue, perhaps with this particular Android release.  Went to Samsung support chat, but the 'technical support' could not help.

Has anyone seen this issue?  TIA.


问:
Add to home screen not working
I am trying to add a bookmark to my home screen on my android device, but it is not working.

I tried both Firefox 38.0 and Android Browser which both have this option and none of them was able to create the shortcut. I also tried various websites to confirm that it is not a website problem, still nothing.

Is there something wrong with my phone, what do I have to do to get this working?

Title: Add to home screen not working


问:
Purpose of .push_deviceid file
On some Android devices, in the data folder (within user storage), there is a file called .push_deviceid

For example, on one Android device, I found it at storage/emulated/0/data/.push_deviceid

It is a text file that contains a 32-byte hexadecimal value.

Searching the internet has not resulted in helpful results.

Does anyone know the purpose of this file, or what created it?

If not, besides deleting it (or renaming it) and then running every app to see what recreates it, is there a way to find what process created the file?

Title: Purpose of .push_deviceid file


问:
Phone does not use SD card
I have a Lenovo A526. In storage settings I've selected SD Card as the "Default Write Disk".

The phone storage is 2gb and I have ~150 MB available, whereas the SD card is nearly 15GB and has most of that available.

The problem is that when I attempt to download any app, I get an error saying that there is not enough space available and I should make some room.

Why is this happening? There's plenty of room if the phone simply decided to use the SD card.

How can I make it use the SD card instead of always using the smaller (and full) phone storage?

Title: Phone does not use SD card


问:
How to edit and merge two different sms backup from two different phone?
I have my SMS backed up using SMS Backup and Restore, and also my girlfriend's SMS was backed up using the BlackBerry Desktop tool.

I converted the BB SMS back up to an .xml file.

I just want to know how can I edit the converted back up (from BB) so that the sender will be me, because due to unfortunate crashing of my SMS app, some texts are deleted.

So I want to restore that deleted text but from my GF's SMS and merge it to my backed up (Android) file. How can I best accomplish this?


问:
Disable all but a few applications from accessing mobile data connections
I would like to disable all of the applications on my phone from accessing my mobile data connection, except for a select few applications that allow me to remotely control my phone, and thus, require a data connection. Is there any way to do this?

Im using an HTC One M8, running stock (non-rooted) Android 5 with HTC Sense 6.


问:
Abysmal Skype audio on Asus Fonepad 8
I bought a new Asus Fonepad 8 for a friend. It works great, and the sound is crystal clear.

The only exception is Skype - all calls sound perfect on the receiving end, but on the Fonepad everything sounds like through a phone! The audio quality is consistently awful.

We've tried different Wi-Fi networks and people to call (including the Skype test call, which sounds as bad).

Skype was the main reason for buying the tablet, so this really hurts. What can I do to try and fix this?

The Fonepad is running Android 4.4.2.

Title: Abysmal Skype audio on Asus Fonepad 8


问:
"Calendar Storage" uninstalled. Calendar doesn't work
I had uninstalled the "Calendar Storage" system app from my device. Now I cannot use my Calendar Application. I assume this because I had uninstalled Calendar Storage.

I haven't got any backup for restoring that app. I have even tried factory reset, but I cannot get the app back. Now I need to get an apk file of the app, move it to /system/app/ and reinstall. But I cannot find the correct apk file of the app for my device.

I am using iBall Slide i9018 (rooted) running on android 4.2.
Please help me find the correct apk file of the app for my device.


问:
Where does the "privacy protection password" come from?
I wanted to insert a second sim card in my Umi phone.
From then onwards, it always asks me for this 'privacy protection password'.
I can only insert numbers, not letters... so I'm very puzzled about what this does.

I have all pin, puk, passwords of everything in a book here. But whatever pin I try it keeps failing.
Can anyone help me please?

Is this from the Prey app? Or from Android itself? Can I reset it somewhere witha  password online on the web?


问:
Tapping Back button for closing Chrome always redirects to the same website
Every time I want to close chrome with the back button I am redirected to same website. I want to get rid of this website but i cannot.

I cleared the browser history but the website keeps reappearing everytime I go back with backbutton before chrome is closed.

I have googled but could not find any solution to the problem. I ran multiple anti malware tools but none of them fixed it.

It is a particular website namely http://jamesclear.com/confirmed?__s=1bueuwtvop3g6ssfsutv which then redirects to jamesclear.com.

Can anyone help me out?


问:
".walkfree" folder automatically created in SD card, and APKs downloaded into it without any notification
In my SD card a folder is created on its own named .walkfree by an unknown source, and in that it automatically downloads .apk files showing no notification of being downloaded, and if deleted, a new same folder appears and again apps are downloaded, and it does not stop.

What is going on?


问:
CM 10.1.3 randomly freezes, and stock ROM phone does the same
Using a Samsung Galaxy Tab 2 (P3110) on CM 10.1.3 RC3, and a Sony Xperia E (C1505). My tablet randomly freezes with no reason. Sometimes it's 9 or 10 hours after it's last turned-on, sometimes it's 10 minutes. I would just put it as "normal side effects" if it weren't for that fact that my phone freezes at the same time.

They freeze within 3 seconds of each other, until reboot (remove and reinsert battery on phone, hold power for 10 seconds on tablet) and this seems to always happen on the same WiFi. However, this sometimes happens when "separated" (not linked via WiFi or Bluetooth), though a lot rarer.

Please help, I don't understand what is going on, or why.


问:
Wifi Hotspot dnsmasq no DHCP ACK
I am creating a Wifi hotspot with hostapd and providing DHCP/DNS through dnsmasq on an Android 5.0.1 device.  When a client connects to the Wifi hotspot it is subsequently unable to obtain an IP address through DHCP.  The dnsmasq server claims to send a DHCP ACK response but no packet is seen in wireshark.

dnsmasq is started with the following options (formatted for viewing).

```<code>/system/bin/dnsmasq
--keep-in-foreground
--no-resolv
--no-poll
--dhcp-authoritative
--dhcp-option-force=43,ANDROID_METERED
--pid-file
--dhcp-range=2001::2, 2001::10, ra-stateless,infinite
--enable-ra
--dhcp-range=192.168.42.2,192.168.42.254,1h
--dhcp-range=192.168.43.2,192.168.43.254,1h
--dhcp-range=192.168.44.2,192.168.44.254,1h
--dhcp-range=192.168.45.2,192.168.45.254,1h
--dhcp-range=192.168.46.2,192.168.46.254,1h
--dhcp-range=192.168.47.2,192.168.47.254,1h
--dhcp-range=192.168.48.2,192.168.48.254,1h
--dhcp-range=192.168.49.2,192.168.49.254,1h
</code>```

The dnsmasq logs show that dnsmasq receives the DHCP REQUEST from the client and attempts to respond with DHCP ACK.

```<code>I/dnsmasq (10989): started, version 2.62 cachesize 150
I/dnsmasq (10989): compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-scripts no-TFTP no-conntrack
W/dnsmasq (10989): warning: no upstream servers configured
I/dnsmasq (10989): IPv6 router advertisement enabled
I/dnsmasq (10989): DHCP, IP range 192.168.49.2 -- 192.168.49.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.48.2 -- 192.168.48.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.47.2 -- 192.168.47.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.46.2 -- 192.168.46.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.45.2 -- 192.168.45.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.44.2 -- 192.168.44.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.43.2 -- 192.168.43.254, lease time 1h
I/dnsmasq (10989): DHCP, IP range 192.168.42.2 -- 192.168.42.254, lease time 1h
I/dnsmasq (10989): stateless DHCPv6 on 2001::2
I/dnsmasq (10989): SLAAC on 2001:: prefix valid infinite
I/dnsmasq (10989): read /etc/hosts - 1 addresses
I/dnsmasq (10989): using nameserver 8.8.8.8#53
I/dnsmasq (10989): update ra:true|wlan0|rmnet0|97
I/dnsmasq (10989): internal inf is wlan0
I/dnsmasq (10989): external inf is rmnet0
I/dnsmasq (10989): set table number:97
I/dnsmasq (10989): update_ra count:0
I/dnsmasq (10989): link local address:wlan0
I/dnsmasq (10989): failed to send_ra: face_enumerate, parm.found_context
I/dnsmasq (10989): failed to update ra:send_ra
I/dnsmasq (10989): DHCPDISCOVER(wlan0) c0:bd:d1:4a:3a:0f
I/dnsmasq (10989): DHCPOFFER(wlan0) 192.168.43.127 c0:bd:d1:4a:3a:0f
I/dnsmasq (10989): DHCPREQUEST(wlan0) 192.168.43.127 c0:bd:d1:4a:3a:0f
I/dnsmasq (10989): DHCPACK(wlan0) 192.168.43.127 c0:bd:d1:4a:3a:0f android-e55b7f59c0dfe96
</code>```

Wireshark shows the reception of the DHCP REQUEST packet from the client but no DHCP ACK is ever sent.  Instead, the host is issuing ARP requests for the offered IP address.

I cannot understand why the host is sending ARP requests for the offered IP address instead of sending the DHCP ACK.  Can anyone help me understand what I am seeing and how it can be fixed?  Thanks.

EDIT

The wifi hotspot was created by monitoring all commands sent to the netd socket during standard wifi hotspot creation through Android and replaying those commands with /system/bin/ndc.

```<code>ndc netd softap fwreload wlan0 AP
ndc netd softap set wlan0 Redskins wpa2-psk DanSnyderSucks
ndc netd softap startap
ndc netd interface getcfg wlan0
ndc netd interface setcfg wlan0 192.168.43.1 24 up multicast running broadcast
ndc netd tether interface add wlan0
ndc netd interface getcfg wlan0
ndc netd network interface add local wlan0
ndc netd network route add local wlan0 192.168.43.0/24
ndc netd ipfwd enable
ndc netd tether start 192.168.42.2 192.168.42.254 192.168.43.2 192.168.43.254 192.168.44.2 192.168.44.254 192.168.45.2 192.168.45.254 192.168.46.2 192.168.46.254 192.168.47.2 192.168.47.254 192.168.48.2 192.168.48.254 192.168.49.2 192.168.49.254
ndc netd tether dns set 501 8.8.8.8 8.8.4.4
ndc netd nat enable wlan0 rmnet0 1 192.168.43.0/24
ndc netd tether ra true wlan0 rmnet0
</code>```

EDIT

Any suggestions or ideas on where to even begin debugging would be greatly appreciated.  I have tried comparing logcat logs and kmsg logs but I have been unable to exact any useful information.

Title: Wifi Hotspot dnsmasq no DHCP ACK


问:
Sound profile automatically set to "do not disturb" on LG G3
For some reason, my phone resets the sound profile sometimes.

It chooses the DND sound profile.

Why?


问:
Explanation of Settings > Apps and internal vs external storage (Android 4.1)
Can anyone please provide a clear explanation of the different information displayed in the Apps section of Android Settigs? Precisely:

Apps List

The ON SD CARD tab. Does it show apps that are installed on the SD card, or any app that has some data stored on the external storage, even though the app itself may be installed internally?

The checkboxes. Does it indicate that this app is actually installed on the external  storage? Implying that the unchecked apps are installed internally, but have some data stored on the SD card?

The size in MB. Is this the total amount of data this app has stored on the SD card, including the app "executable" itself, in case the app is also installed on external storage?

App Details

The 'Move' button. It offers either a) Move to Internal Storage or b) Move to Data Storage. Is this a reliable indication of where the app is currently installed? I.E. when it offers to Move to Internal Storage, is it safe to assume that the app is installed on external? Or does it say nothing about where the app executable is located, and is only offering me to move any app-related files to the internal memory? Is data storage synonymous to external storage ?

What do the different sizes mean? I mean App, USB storage app, Data, SD card.

Thanks in advance to anyone who takes their time to try and clarify this to me!


问:
Can I remove all these garbage apps without rooting the phone?
I just got a Samsung Galaxy 2 from Docomo in Japan.

The only thing I don't like about it is that it came with about a million pre-installed apps, 99% of which are just garbage that clutter my application list. I'm not just talking about a few that I don't like, I'm talking about so many that I have to scroll through pages to get at the apps I want.

I was unable to uninstall a handful by going to the Market and simply opting to uninstall.

However, with all the rest, the uninstall button is greyed out.

Can I remove these apps without rooting the phone, and if so how?

If I have to root the phone, is that possible with my model?


问:
MMS Downloading Hangs on Data State Change
As a general rule, I turn my data off and pretty much force everything to be done via WiFi unless I am out and about, at which time I have data turned on obviously.

However, as many know, messaging app (in my case the default Google one) requires data for some reason to down the MMS and won't do it over WiFi (if there is a way to change that behavior, please share) but since my data is off while at home/work, if I receive a MMS message, then it will just sit there with "Tap to download" as the option.

So far that's fine, but when I turn on data at this point and then click on Tap to download, it will just sit there forever saying downloading but not actually downloading anything. It is not until I restart the phone that clicking Tap to download instantly download the MMS. This makes no sense to me and I would like to understand what's going on here.

My question is basically, WHY doesn't turning the data back on not successfully download the MMS without having to restart the phone? What is preventing the system from honoring/recognizing the data state change and availability here? TIA


问:
How to get OK Google from Lockscreen back? OnePlus One CM 12.1 nightly
I recently updated to the new CM 12.1 nightly on my Oneplus One from the official version because of constant touchscreen issues. The touchscreen issues are now fixed, but OK Google doesn't work from the lock screen any more. I also can't select it from the Google Now voice options or through settings>language and input. The device is rooted. I've googled this issue a lot, yet no one else seems to be having this issue. I also know a lot of people don't rate OK Google, however I'd love to have the functionality as I recently got a Bluetooth stereo for my car.

Anyway. would be great if anyone had an idea. Cheers!


问:
How to convert time-stamps into human readable form written in a usage-stats file of Android Lollipop?
The file under consideration is any file under /data/system/usagestats/0/daily/. The entries it has are like:

```<code><package lastTimeActive="77497976" package="com.android.settings" timeActive="471657" lastEvent="2" />
<package lastTimeActive="50486897" package="com.android.dialer" timeActive="180327" lastEvent="2" />
<package lastTimeActive="83158956" package="com.cyanogenmod.trebuchet" timeActive="461860" lastEvent="2" />
<package lastTimeActive="59444603" package="com.slovoed.oald" timeActive="405608" lastEvent="2" />
</code>```

Here is the complete text for the file 1438905600000.

The value 77497976 doesn't seem to be Unix Time, and 471657 seems to be milliseconds.

I added that value into the value mentioned in file name i.e. 1438905600000 + 77497976, and the converted resultant of 1438983097976 here doesn't reflect the actual result shown in GUI here:

(Click image to enlarge; screenshot was taken on Aug 8, 2015 at 05:08 AM)

Package name of apps shown in screenshot whose raw time-stamps you can see in the file:

Settings → com.android.settings

Dialer → com.android.dialer

Launcher3 → com.cyanogenmod.trebuchet

SQLite Editor → com.speedsoftware.sqleditor

Titanium Backup → com.keramidas.titaniumbackup

OALD → com.slovoed.oald

ES File Explorer → com.estrongs.android.pop

Clock → com.android.deskclock

adb shell su -c 'dumpsys usagestats' is of no help since it gives no output to me.

In Android 4.x, it is easy to understand the time-stamp (mainly the "last time used") because Unix Time is written in the logs, and you can convert it into human readable time easily.

I looked at UsageStats, UsageStatsManager, UsageStatsActivity but couldn't understand how the time gets converted.

Alternatively, is there a schema which Lollipop follows to write entries in those usage-stats file? Perhaps, that can help to figure out in conversion?

I'm using a rooted OnePlus One running CM12.


问:
native email client on galaxy S2 does not attach original message when I reply back to the sender?
When i reply back to the sender or people in CC, The email client shows me the original message while i'm typing my reply but somehow it gets removed/deleted when i send the email and it appears to come as a new message to the person.</p>


问:
android - difference between running process and cached background process
In my running processes,

camera has 1 process and 0 services running. I don't have it open in the foreground so why wouldn't this be a cached background process? How can there be a live process if the app isn't in the foreground?

Could someone clear this up for me?


问:
Using PC to control Android (ex : using mouse or keyboard to tilt, rotate, emulate gyroscope, etc)
Is there any way to input fake sensor data from PC into your android phone (not the opposite)? Like using WASD from PC to make your android phone thinking they are being tilted, rotated, etc even though they actually aren't.

I want to try google cardboard applications. Most of them require gyroscope in order to run properly. Sadly my phone doesn't have gyroscope installed in it.

I'm thinking if there's already a bunch of options to use the data from the sensors from an android phone to do a lot of things in PC (joystick, etc), why not the opposite?


问:
System Data folder swelled to over 50% of the whole disk space after updating to 5.0
I have a LG G2 Mini and a few weeks ago, I got a notification asking me if I want to update to Lollipop - I did it and, to my surprise, a few days later all the apps stopped updating screaming that there was not enough disk space - being confident that there is at least 3GB free, I went to the settings to check and... there was only 400MB free, with "System Data" folder under "Other" occupying 5.2GB (out of 8GB my device comes with).

This state of things has persisted ever since and, as a consequence, my phone is really laggy, apps crashes often and I can't even update anything. From what I googled, some people had this problem as well on various devices but no one came up with a definitive solution. I've tried zeroing the apps cache but to no avail, it only freed 30MB or so.

What can I do with it, apart from the ever-present golden advice of a factory reset? I would prefer not to root either. Is there anything I can do, then?


问:
scp is given access to a subdirectory. How to command scp to change parent directory?
When using scp, I am given access to a subdirectory. How should I amend the command to copy files from a different parent directory? I am using the standard scp command as follows:

```<code>scp -P port-number hostname@ip-address:path/to/file path/to/folder
</code>```


问:
Hide patterns when unlocking protected apps?

(source: virtualthoughts.org)

Is there any way to hide pattern in Protected Apps App in CM11 ?

ContentLicense: CC BY-SA 4.0


问:
HD Video in Chrome Browser is not working properly
I have an Android device with Android 4.2. It's a Box with an HDMI Output, to plug in to a TV.
This box is capable of playing 1080p HD-Videos in the media-player app. However when I try to display a 720p Video (downscaled via ffmpeg) in the chrome or chromium browser, the framerate gets horribly low. (It varies between 15fps and 22fps) You can't really enjoy the video...
When the video is not fullscreen, but in a smaller div-container it gets even worse!

In the chrome://inspect-settings I have set the flags:

#ignore-cpu-blacklist

#show-fps-counter

#enable-gpu-rasterization (force enable)

When I do not set those flags, the video does not play at all.
On the video-screenshot in the top right corner you can see, that the browser almost takes none of the available GPU-memory! Why is that? Can I do something about it?

When I enter chrome://gpu it shows, that Hardware acceleration is supported. Nevertheless the output is just terrible...

Do you have any tips how to improve HD-video playback in the browser?

Best regards


问:
Change LED for charging
How can I change my LED to show colour, when it is charging. More specifically, how can I change these colours? I am using a rooted Sony Xperia E C1505. I do not want to use an app, for storage reasons (I have tiny storage on '/data)</p>

Title: Change LED for charging


问:
Launch google now into listen mode by holding home button like in iOS
I just switched from iOS to android 5.0. With Siri, you are able to hold the home button (from the lock screen or otherwise) and it will immediately start listening for a command. I would like this same behavior with Google Now.

I realize you can set your phone to be listen for the "OK Google" initiation command. That is not what I want. I hate having to do that. I want to activate voice commands by holding the home button.
Is this possible?

Please any help would be appreciated!


问:
How to unbrick my motorola moto g if it does not power on?
I use motorola moto g xt1033. I tried to root it and upgrade it to lollipop 5.0, while rooting it suddenly stopped and then i unpluged the data cable in between and tried to power on it but it does not do any thing. So i even pluged it on charge but only a led white light blinks continuesly and do nothing no response same i also tried connecting again it on pc but it does the same thing.. i also tried to bring the boot option with pressing power button along with volume down button for like 5mins but it was of no use nothing responded. But when i plug it with a datacable on my pc on the pc screen it shows conected and it stays conected just for 1min and again the led starts flashing on and off anc in pc it shows connected again disconected. Please help me with this problem..</p>


问:
VPN to an android TV box via a MikroTik routerboard
I have a threefold question:

Is it possible to control an android TV box over the internet at a remote location?

What program is suggest by the community.

And if this is possible how does one set it up?

Keep in mind that this is for a remote site that cannot accept user input and has a MikroTik RB that I will be using to port forward to the devices in question.


问:
my mobile is not showing memory card?
I have samsung pocket GTS-5300,  suddenly it's showing a message of not enough space. 4 gb memory card inserted in it. But it's not showing the card's space. no messages are coming nd everytime my phone is showing message of not enough space.
so tell me how this problem be sovled.</p>

Title: my mobile is not showing memory card?


问:
How to turn on app notification badges in Aviate launcher?
I have a Galaxy S3,  and I just installed the Aviate launcher. For the most part, I really like it, but I have one quibble - I can't work out how to turn on app notification badges. I've found this page but the solution there doesn't work for me - pressing and holding on the home screen doesn't bring up a settings button.</p>


问:
Adaptation of ROMS for other devices
Could I install certain custom ROMS for other devices e.g. Samsung tab 3 Stock on Samsung Galaxy tab 2? If so, how, and what should I do?</p>

Title: Adaptation of ROMS for other devices


问:
NFC occasionally stops working. Fixed by battery removal.
I have written an app utilising the NFC radio running on Android 4.4. The NFC radio stops working on 2 occasions :

After an APK update.

Occasionally at other times.

The NFC function is still turned on and the system says it is working.

Interestingly the only thing that seems to fix it is *taking the battery out
*

Powering on/off doesn't work and neither does switching NFC function off then on.

It's very hard to even find where the bug is occurring but given that battery removal works, my question is :

What does battery removal do to an android system that powering off completely doesn't do. Does it wipe a cache or reset something?


问:
Group Messenging with 5.1 LG4
Question 1: I recently purchased the LG4 with 5.1. I noticed that when group messaging using the LG 5.1 stock messaging app. I don't see the name of the person replying. I only see a color bubble. In order to see who is responding, I have to click on the bubble. How can I see the name of the person w/out having to click on the bubble.

Question 2: How can I receive replies in one conversation? I am receiving responses individually. It makes it hard to follow the conversation.

Title: Group Messenging with 5.1 LG4


问:
Where are the lollipop OTA system upgrade files stored?
Android devices automatically download OTA system update files and store them on your device until you install them.
Then you get a notification that the file has been downloaded.
I do not want to update using this OTA file.
I just would like to delete the OTA file but cannot find where it is stored.
In the past they were stored in the /cache directory, but with lollipop that no longer seems to be the case. </p>


问:
Android browsers blocking Youtube preroll ads natively
I was wondering if anyone else noticed that Youtube preroll ads are automatically blocked when browsing on Android Chrome or Android Firefox. This is without any adblocking features enabled (no Adblock Plus installed, no Adblock installed in Firefox, no Firefox tracking protection enabled, etc.). I'm not complaining by any means, because I do everything I can to block ads, but I was wondering if anyone knew why this happens (I'm curious from a technical/networking standpoint).


问:
Tired of having no data despite having plenty of bars
I'm on T-Mobile US with a Google Galaxy Nexus, I don't use WiFi, and I've grown to be very tired of very often having some spots around town where I get great (or sometimes even excellent) HSPA+ reception, yet, nonetheless, get basically no data working at all -- even phone calls don't connect.

Going into the *#*#INFO#*#* Testing menu, Phone info screen, and selecting GSM only in place of WCDMA preferred, and then, after the phone connects onto EDGE, then manually selecting to go back to the WCDMA preference as above, generally fixes the issue, and data starts flowing again.  I also recently noticed that every time this has happened, the Location CID value when in UMTS/HSPAP, is different between the working and non-working states, and, in a given geographical location, some CIDs always appear to not work, and some to always work.

Why is this happening?  Why is the phone/baseband not smart enough to abandon the broken cell towers, and automatically connect to working ones, if that's actually what happens once you force it into EDGE, and then back to WCDMA?  (I guess the better question would be -- why isn't TMUS monitoring these broken cells, but that'd be for a different SE property.)


问:
My Samsung galaxy tab 2 does not switch on
I am using Samsung galaxy tab 2 gt p3100. It freezes when showing Samsung galaxy tab 2 gtp3100. I cannot switch on my tablet neither switch off.</p>


问:
Error `ssh not found` in terminal Android
I'm trying to use ssh in the app Terminal Emulator in Android, but it gives me the error /system/bin/sh: ssh: not found.

This is strange to me, since I also use ssh in the apps AndFTP and SSH Server and they work just fine.

When I then try find -name *ssh* in the root directory in an attempt to find the ssh program I get the error /system/bin/sh: find: not found.

Are perhaps all the symbolic links to these standard programs missing?


问:
Can I set up Lync account on built-in mail client?
Is it possible to setup Lync into built-in mail client application?
How?</p>


问:
set pr_set_dumpable value to any apk on android device
I am trying to debug sigsegv errors in different apk files and found that many apps disable dumping the logs by setting prctl(pr_set_dumpable,0). Is there any way to get around this and get the complete log data?

PS: I dont have source code for any of the applications


问:
How to use PC internet in to android phone using usb cable
I want to use my PC broad band Internet in my android device using USB cable because my pc has not any Fifi or blue-tooth so I want to connect with standard USB cable and Used my pc Internet. if any suggestion then let me know.      </p>


问:
Android phones hangs -phone hardly usable
I have a moto g2 android phone with 5.0.2 android Lolipop.

It has started to hang so severely that the mobile is almost unusable.

The mobile never really had any hanging issues earlier.All of a sudden this problem popped up.

I tried :

factory resetting the phone

removing sdcard

removing junk files & folders from sdcard & internally memory

I have uninstalled most of the apps.(I have google keep,calender widget & watsapp)

Can this be a hardware issue?

I don't want to root my phone as it is still in warranty.

Please share how can I fix this problem .

Thanks

EDIT

when the problem popped up I was on 5.0.1 lollipop version

There is no common point when my phone freezes

After the rest the, when I linked the google account etc & installed watsapp , hanging problem started . Only when there was a fresh reset & no app or account was added the phone worked fine


问:
Extracting data from running app’s memory address space
Note: the original problem was solved in another way.

Can Ī̲ access memory of an app without (already obtained) root to extract some lost data? A weaker version: can Ī̲ see which files does the app access? Or, possibly, looking in the file system’s deleted/unused space would provide better chances? To be specific:

the device is Explay sQuad 7.82 3G

the OS is Android 4.2.2 kernel 3.4.5 (the one supplied by manufacturer)

the app has the word “Tips” on its icon (its name is presumedly “com.mediatek.notebook”; it has android.permission.READ_NOTEBOOK and android.permission.WRITE_NOTEBOOK permissions)

My problem is trying to recover a chunk of text lost after some UI glitch and recklessly pressed back (↶) that caused the crappy software to save the damaged record. The text in question was saved many times during several days and lost just before Ī̲ stood for copying-and-pasting it to ssh client’s window. Any help will be appreciated; just note that Ī̲ have fairly strong skills locating and extracting various data from memory dumps, but am not a frequent Android user.

Update: Ī̲ rooted the device via USB using instructions from there and there, located the process, and entered its /proc/pid. The system even has gdbserver already installed. Now what?

Update: Found all data needed in files in /data/data/com.mediatek.notebook/databases/ and am not very interested in obtaining memory dumps.


问:
Will LG Optimus Exceed update to Lollipop?
The LG Optimus Exceed ships with KitKat 4.4.2. Will that automatically update to Lollipop, or would I need to root the phone?

http://www.amazon.com/LG-Optimus-Exceed-Verizon-Prepaid/dp/B00K2XX4OY/ref=sr_1_3?ie=UTF8&qid=1439610488&sr=8-3&keywords=prepaid+android


问:
Reverse Tethering (USB) through Windows 10 using Android 4.2.2 without installing additional software
I want to use the Internet Connection of my Windows 10 PC with my Android-Device through USB-Cable.

How can I reverse tether through windows 10 using my usb-cable?

I have found some similar questions, but the question and its answers are telling me how to use the Android SDK to do USB-Tethering. I don't want to install additional software like the Android SDK.

It sounds, like there was an built in solution in windows, but the necessary sharing tab is missing:

Is there really no way to do usb-tethering using Windows 10 without installing external software like the Android SDK?


问:
Android storage with UTC timestamps?
I would like to use UTC timestamps on the FAT partition on my Android phone.

Reason:

When one moves files from an Android phone to a Linux desktop, one gets wrong timestamps for files which were modified during daylight saving time. The FAT driver on Linux converts the local timestamps from the FAT partition to UTC timestamps on the desktop. It cannot handle daylight saving time, though.

There is an option tz=UTC to mount on Linux to skip this conversion, i.e. to assume that the timestamps were in UTC on the FAT partition.

Consequently, a way to get around the problem would be to use a similar option on Android to use UTC timestamps on the Android storage.
Is that possible?

Title: Android storage with UTC timestamps?


问:
Change notification text and background color
I'm looking for a way to change the color of the text that appears on the notifications in the notification drawer.

I'm running CM12.1 with Xposed.


问:
Saving image out of Google app
I can't find a way to get an option to save an image out of the Google app on my phone? I open the image and after going through enough many steps to call it awful UX, I get to these menu options which offers sharing but not saving:

Is it purposely designed to make saving images difficult or impossible?

Title: Saving image out of Google app


问:
Unable to connect to wifi router: Something wrong with configuration?
I needed some way to interact between my desktop and my android phone (Cynaogen). I got a router from my friend. To be clear, its not about getting access to internet, I just want to establish LAN connection between by desktop and Android phone.

By logging into the router, I've configured "Wireless Network" to following settings (advanced view).

Problem is even though XYZ wifi network is shown in  available networks in Android phone, after entering the password, status is turning to Saved and after  a while it says Authentication Problem.  I tried rebooting the router, forgetting the network and try connecting again in my phone. I tried connecting using my friend's phone (kitkat 4.4) too. But still it isn't connecting.

```<code>To make sure MyDslModem does not transmit on illegal frequencies, you must set where you are in the world.

Global Setting
    Select Profile:     802.11B/G
    Wireless Network:   Enable
    Select Country:     USA
    You may either choose a channel yourself, or allow to automatically select the best channel.
    Channel Selection:  Auto
    Select Channel: 1
    Network Name (SSID): XYZ
    Hide SSID:  No
    Fragmentation Threshold : 2346
    RTS Threshold : 2347
    NitroXM PiggyBack:  Enable
    WMM:    Disable

Security Settings
    Select Security Option:  Wi-Fi Protected Access2
    [disabled] WEP Authentication Mode:     Open
    [disabled] Select Tx Key Index:     0
    [disabled] Select Key Method:   Pass Phrase
    [disabled] Key:
    [disabled] WEP Pass Phrase:
    Select Encryption Protocol: AES-CCMP protocol
    Select Authentication Method:   PSK (Pre Shared Key)
    WPA Pass Phrase:    mypassword@47
    802.1x Identity String: BSNL Voip gateway
    [disabled] 802.1x Rekey Timeout: 600
    [disabled] PMK Caching:     Enabled
</code>```


问:
hidden photos in gallery lost/deleted/disappeared?
So I have a problem... all my pictures in the galaxy's own 'hide photos' option have deleted. I went on holiday and took some pictures. I decided I would sort them and keep only my holiday photos in the gallery and hide the pictures of me and my friends. After a month of checking back at them couple times during the week they decided to disappear just after I had a look at them. I'm pretty sure I didn't delete them because if I did have accidently  clicked the deleted button it would take a couple of minutes for round about a 1000 pictures to delete and I did not see any box that said deleting 'whatever amount of number out of a 1000' please wait because I looked back at my phone within seconds. I've read many different forums which told me to use third party apps or going through to my files > ticking the show hidden files in the settings > clicking all files > phone/sd card storage > .hide file > island > and my pictures should have appeared..  but they did not... all I got was an empty file. I had no luck with anything so far. Please help me to retrieve these photos, they are important to me. Any help will be appreciated. Thanks</p>


问:
How to filter IP address in a hotspot/tether
For non rooted phone IP can be filtered/blocked by using a firewall like NoRoot firewall. Every apps in the pthone can be controlled this way. But when mobile data is shared with other devices (like tether to a PC, WiFi hotspot) they aren't under the control of the firewall. Applications, like software update, on the other devices are sucking the whole data which lead to exhaustion of mobile data.

So How to filter IP/domain from  connection on a phone that act as a WiFi/USB hotspot.
I have visited many hotspot manager apps but none of them seems to have a filter option. Does any hotspot manager support it? or any method? nonroot highly recommended.

**Update  **

PLAN to identify spam IPs
After creating the hotspot client devices are connected. Clients are requested wait for some time so that spam apps begin to update/download by connecting to their server. These IPs are noted and filtered by the hotspot manager.


问:
Vodaphone 875 Uninstall SuperSu
I own a Vodaphone 875 model phone, which I rooted previously using Cydia Impactor. Installed SuperSU, everything was fine and dandy, and when I needed to transfer it to another person who wasn't comfortable with a rooted device, I used the standard master reset button within the Settings page. However, on startup, I discovered that SuperSU was still installed, and, knowing that it was now a system application for whatever reason, I attempted to reroot with Cydia Impactor again. However, something changed, I have no clue what (probably a Google update or the like), and the exploit no longer works for my phone. A quick google search resulted with people having this problem, on different devices, with the solutions being a flashable zip, which I have no intention of doing.

Therefore, my questions are as follows:

How do I remove SuperSU from my device, permanently?
Is there a flashable zip for my device?

Any help would be extremely helpful, as I have been looking for a solution for over two months now.

Title: Vodaphone 875 Uninstall SuperSu


问:
Change the filesystem mounted when plugged in to USB
Is there a way to change the mount location when plugging a device into USB?

I want to move it to the root directory. I am rooted.

Please note that I want no setup done on the PC, that is, do not suggest methods involving changing the PC. If I have to, I will though.


问:
Kiosk, Rom + Launcher, need a little guidance
I am currently developing a software for use in the Home health industry, which handles Verifying an aid is actually administering care (EVV). This works with GPS and the read of a fixed NFC chip. i have the application itself developed using Phonegap and Nodejs and it works well, but id like to kiosk this application on a 4g enabled device.

Now i know to kiosk, i need a launcher not a custom ROM to do this, which isn't an issue, but i do not want the aides to be able to access the drawer or settings menus, or really any function of the phone other than the application itself. This is problematic if NFC or GPS is not on at boot. do i need to customize the ROM for these 2 functions to be permanently forced to remain on? or is there a way i can do this in the launcher app itself?

Thanks in advance


问:
Can we stream Pocketcast to the pc?
I just want to listen to the podcasts through my PC speakers when ever im close to the pc. How can. I do this? </p>

Title: Can we stream Pocketcast to the pc?


问:
Ubhind app not working properly after android security update for 5.1.1
I have a nexus 5 and the android version is 5.1.1.I have been using the app Ubhind for controlling how much time I spend on the mobile device. After the security update from android this month the app seems to have lost all right to device administration even though the app has full access . </p>


问:
How does the gmail apps notify once feature work?
I have been looking into the settings to make gmail better for myself however one thing I couldn't get my head around is the notify once option.

If I receive an email I get notified, if I get another one from the same sender and the notify once option is ticked I no longer get another notification. Or does the notify once feature mean from any other sender?

So I've already been notified and I receive another email from a completely different sender, do I then get notified with the notify once option ticked?


问:
Samsung Galaxy 4 GT 19505
How do I stop apps from enabling high tech users to access my messages, call logs, emails, photos, samsung memos etc?

How can I save all text messages, call logs, photos, documents, downloads and everything else on my phone to a private and secure cloud domain without hackers knowing I did so?

Title: Samsung Galaxy 4 GT 19505


问:
View chrome passwords on Android device
I've been searching for a way to do this for a while now and haven't come up with a good solution. Does anyone know if chrome-saved passwords can be viewed on an android device? If they can't be, is there a particular reason this feature hasn't been built?

Thanks!

Title: View chrome passwords on Android device


问:
what's my IP address location.. 22.87.160.96
Need help to figure out why my IP address keeps changing and how I can stop people from hacking my phone</p>


问:
How to fix emmc memory showing 0mb?
Yesterday actually I messed my Xolo Q700. Actually I wanted to install a custom ROM "experia final" on it. But I didn't installed any custom recovery previously. So I installed TWRP recovery using mobile uncle flash it from SDcard. It worked absolutely fine. Then I installed custom ROM but during cache and dalvik wipe stage, I selected advanced wipe and wiped everything including emmc. Now my phone stuck in boot animation forever and if I open TWRP it shows "unable to mount e: emmc" and emmc memory showing 0mb. I can't side load ROM using adb cz. My phone is not detected via USB cable. Please help me on the issue.

Title: How to fix emmc memory showing 0mb?


问:
Left Align all menu items and texts in Android 4.4
It's about Android 4.4. I would like to left align all menus including conversations from Whatsapp for example. How to do it? In fact, I upgraded from version 2.3.1 to version 4.4, and as we know Google made this change of alignment. Is someone unknown?</p>


问:
Screen Alerts - Android 4.4
screen alerts - when, for example, I get some new Whatsup. I do not want to see any new messages are lined up, but I want it to be like it was in the previous version, it says to me, "received 3 new messages" Then I came in INTO the application and read them.

Thanks!!

Title: Screen Alerts - Android 4.4


问:
Problem with Xposed 3.5.9 on alcatel idol 2 mini 6016d
i had a problem with xposed framework i install it on my alcatel 6016d but when i install module , restart the phone don't boot ,stands on alcatel logo .

the only Solution this problem is power + up to format aphone.

i try xposed more than 27 times but no solution

i belive th problem is xposed don't support alcatel rom.

I wish to run Xposed on my phone with no problem
Thanks.


问:
Image not display in Gallery
What is the reason and solution to display images in SD card but not display in Gallery in Android Phone ?</p>

Title: Image not display in Gallery


问:
Automatic popup for captive portal
I have a working access point on a rspbi, works perfectly with my captive portal on ios and os x based machines.

But android does not popup a captive portal, and I can see the requests for clients3.google.com

The way I do the captive portal is by redirecting port 53 (udp) to my apache server, and there display the login page for the access point.

Any ideas why there is no automatic popup? I already checked the chromium project page and it looks like I did everything right.

Thanks.

Title: Automatic popup for captive portal


问:
No longer I get SMS notifications
I have installed a few new SMS management apps to test them and uninstalled them because they were not better than the original SMS app. But now I no longer receive any SMS notifications. No alert sounds, no notifications.

How can I turn on notifications again.

Title: No longer I get SMS notifications


问:
Prevent the predictive text from learning a set of words
Is there anyway to prevent the predictive text from learning a set of specified words?

I use a a Samsung Galaxy S5 (SM-G900A) with Android 4.4.2


问:
How to reset efs
I just did an upgrade to a custom rom but then my network failed to work for me and I also failed to make a backup. Can someone tell me a solution for restoring the efs?</p>

Title: How to reset efs


问:
Lost system upgrade on factory reset
I own a LG G Pro Lite which came with default android version 4.4.2 (Kitkat)

sometime back, it was upgraded to lollypop and was working fine.

Recently I had to reset the phone to restore factory settings which rolled back the upgrade.

In software update section, it is saying "Not updated yet" but when I try to upgrade the OS It is saying "You are using the latest software version for current OS."
What is causing this issue and how can I upgrade to latest android version?

Title: Lost system upgrade on factory reset