问:
Identifying why Google Play Services is hogging background data
My biggest data usage is Google Play Services background data.

Google Play Services is used by many other apps, hiding which app is actually responsible for the data usage.  This also means you can't block background data for this app, because it will have side effects like preventing Google Hangouts from working.

How do I identify which apps are actually responsible for this data usage?


问:
How to prevent shutdown when low battery?
When I'm using my hacky backlight modulation program which toggles screen off and on fast enough to simulate ultra-dim brightness Android sometimes gets wrong info about battery charge (it sees 0% 0V sometimes for a short period) and starts shutdown unexpectedly for me.

How to turn off that shutdown on low battery?

Expecting something like:

Changing settings to forbid this behaviour

Temporarily locking battery reporting to some constant

Temporarily making it think that it is charging

Root access is present.

Update: After updating from android 2.1 to android 2.3 it does not shut down anymore when I run that program.

ContentLicense: CC BY-SA 3.0


问:
Prevent apps from being suspended
I run sshd in a Termux window as my main means of accessing files on my Galaxy S7.  This works fairly well, except that I seem to have to re-run sshd rather frequently.  I suspect that this is because Termux is getting suspended by the OS.  I'm fairly certain that I've told it not to do so, but it seems to be happening anyway.  Using these instructions, which seem to be out of date for Nougat, as a rough guide, I've navigated to Settings -> Device maintenance -> Battery -> Unmonitored apps; Termux appears in this list of "apps that will not be recommended to be put to sleep."  However, after using other apps, Termux is not always present in the list of apps that appears when I hit the, erm, "windows" button at the bottom left corner of the phone, and as mentioned above, I frequently have to open a Termux window and run sshd again.

Is there something else I need to do to prevent Termux (and/or other apps) from being suspended?

Title: Prevent apps from being suspended


问:
six-dot icon on home screen shows app icons, not app names
Something on my phone changed.  I don't know what or how, but now when I press the 6-dot icon in the middle of the bottom row of my home screen, I get pages of app icons without any names.  How can I get the names back?</p>


问:
How can I force android apps to not use more than a specific bandwidth ?
I know that I can use TrafficStats class to have an idea about how much data an app is using. But, I would like to know if there is any way in which I can force the apps to not use more than a specified bandwidth.</p>


问:
How to detect memory of a Web page on Android?
I want to test the memory of a Web page on Android. The memory is mainly used for DOM, so I need to know the overall memory, rather than JavaScript memory.

Any idea?


问:
Can't turn WiFi off from lockscreen status bar options - Action Not Allowed [Nougat]
Recently updated my moto g4+ to nougat and now I'm not able to toggle WiFi and some other actions from lockscreen status bar.

Are you guys having the same issue? How to fix it?
follow the attached screenshots if you couldn't understand my issue.


问:
Enable charging while in MTP mode on Android
When I connect my Android device (a Samsung Galaxy Tab E with Android 4.4.4) to a PC in MTP mode, the tablet always shows the USB charging being disabled, which makes sense because the USB port of a PC might not be designed to drive a high current.

Now I have a Y USB cable that allows two inputs (one for power connecting wires GND and VCC and one for data connecting wires D+ and D-) to connect to a single output that is my Android device.

I want to force my Android device to both communicate in MTP mode with the PC and charge its battery through the same cable. How can I do that?

FYI I am perfectly OK with the idea of flashing a custom Android image to my device.


问:
How to enable unsafe volume warming in android 7?
I have a Huawei P9 lite smartphone with android 7. I disabled the unsafe volume warning by accident and I cannot find any settings to enable it again. I checked settings and then sounds, however, I cannot find an option to enable it again.</p>

OwnerDisplayName: MOON


问:
Unable to reboot Sony Xperia XA in recovery mode
In order to root a Sony Xperia XA phone I followed the steps described here, until the step to reboot the device in recovery mode. Using an Ubuntu computer and the phone connected by USB, I ran the following command:

```<code>sudo adb reboot recovery
</code>```

after I copied the recovery image to the phone as described on the page linked above.

However, the phone rebooted normally and not in recovery mode. There was no option to load the root file to flash the device.

Is there any other way to reboot the device in recovery mode?


问:
Restoring deleted video on Android Marshmellow
I accidentally deleted a video on my Nexus 5 running Android (6.0.1) Marshmellow. The device uses internal storage only. I'd like to recover the video and from what I already know from the Internet, there are desktop/mobile apps that can recover the file.

The problem is, all of the apps I've tried need root access to the system. Rooting the phone, on the other hand, <s>will</s> can wipe all my data (see the comments below), as far as I understood the process correctly. So, ironically, if I root, there will be no file to be restored.

1. Is there any way to recover the lost file without the root access?

or

2. Can I root the phone without deleting all its data?


问:
android 8.0 su not working in terminal on Nexus 5x, ROOTed
android 8.0 su not working in terminal on Nexus 5x, ROOTed. Is anyone else experiencing the same problem? ROOT-based apps work fine, but in terminal emulators when I try su I just get a stalling of the app.</p>


问:
Help with dumpsys usagestats [ADB]
I'm totally new to ADB in general and I wanted to try to quantify my app usage throughout a weekly/monthly period. I used the adb shell command dumpsys usagestats
My questions with this is that

Can I specify  time range (a period of 30 days) to get the stats for ?

What does lastTimeSystem and inactiveTime mean ?

In-memory daily stats
  timeRange="9/2/2017, 5:30 AM ΓÇô 9/3/2017, 12:48 AM"
    packages
package=com.facebook.katana totalTime="25:35" lastTime="9/2/2017, 11:43 PM" lastTimeSystem="9/3/2017, 12:02 AM" inactiveTime="37:43"

I also wanted to check how much music I stream but spotify usage is 00:00 Is this a bug or is it because the app runs on the background? (I've been streaming for the past 2+ hours)

package=com.spotify.music totalTime="00:00" lastTime="9/3/2017, 1:28 AM" lastTimeSystem="9/3/2017, 1:28 AM" inactiveTime="01:09"

Is there a way to automate the log saving daily to my storage ?

In my earlier searches the dumpsys showed how many times the app was used as well. How can I get it with this adb version ?

Phone details: OnePlus2 on android 6.0.1

Title: Help with dumpsys usagestats [ADB]


问:
Phone died after installing ROM
I wanted to install Global Developer ROM for my Redmi 3s Prime which I downloaded from their website. So I started with installing TWRP custom recovery and completed successfully.
After this I installed my developer ROM and after success TWRP tool asked me whether to root the phone or not, to which I said YES.

After this blank screen appeared for very long time and nothing happened.
So, I long pressed the power button and now my phone is not booting up at all.

I tried the following things but none of them are working.

Fastboot mode by pressing VOLUME DOWN + POWER buttons.

Recovery mode by pressing VOLUME UP + POWER Buttons

Also tried by pressing all three buttons.

I also ran these commands adb devices and fastboot devices, cannot see my device.

And even the battery charging indicator is also not showing up.

Is there any tool or something which can help me to fix this problem?

Any help is appreciated.

Title: Phone died after installing ROM


问:
How to fix "Unable to mount storage" error while trying to root xperia phone?
In order to root a Sony Xperia XA phone (using an Ubuntu computer and USB connection) I follow the steps described here until step 12. First, I am not able to select Micro SDCard. But I am able to copy the zip file to the internal storage of the phone. But when I try to install it (step 13), the process soon stops because of an error displayed on the phone:

```<code>Unable to mount storage
</code>```

How to fix this? What am I doing wrong?

Addendum: I managed to copy the zip file to an SD card and to start the installation from there. No error occurs, but no installation either; the phone is still not rooted...


问:
ghost-input with phone screen-locked
I use my phone to hear music via bluetooth while doing my running training.
I always screen-lock the phone and put it into a hip belt, where it sits tight. Obviously it gets shaken while I'm running. I don't use a phone case.

It randomly happens that the phone all of a sudden changes music, stops it or even starts something else like a youtube video. It does completely random stuff like going into flight mode or writing ghost emails. :-)

When I notice it because the music stopped/changed I get it out of the hip belt and see that the screen is activated.

How can that happen and what can I do to avoid it?
I consider getting a case but since I wouldn't normally use one I'd prefer a simpler solution.

Thanks!

Galaxy S7 edge, Android 7.0

Screen unlock with either fingerprint sensor or pattern-unlock

Teufel AIRY

Title: ghost-input with phone screen-locked


问:
How to detect spy software like flexispy, mspy, phonesheriff?
I don't want to factory reset my phone nor do I want to reflash Lineage OS ROM. I just want to check for a possible trace of spy software like flexispy, mspy, phonesheriff, ikeymonitor thetruthspy, and possibly others that I don't know of.

Just to check for root is enough? I have not installed the root feature of Lineage OS.

Is there any way which could do that? I don't mind doing things manually but I need to know instructions or pointers to begin with.


问:
How can I change the default calendar for Cortana?
When I use voice command for Cortana to add an event to my calendar, it defaults to the wrong Google account calendar.  I have to manually switch to the correct calendar each time.

I'm signed in to Cortana with the correct account, which is a "Microsoft" account using my primary Google email address.

I have gone to "Manage Calendars" on my device and 'turned off' the calendar for the other account.

I have cleared the cache & data for the Cortana app and signed back in with the correct account.

I do not want to remove the other Google account from the phone completely, as I still use it (primarily for YouTube and games), but I do not use that account's calendar for anything ever.  I have no clue why Cortana insists on using it or even knows it exists.

Device details:

SAMSUNG-SM-930V (Galaxy S7)

Android v6.0.1

Rooted


问:
Cell Standby draining 71% of battery?

I have Droid Turbo I am having issue with battery draining about 70% by cell standby which is a huge percentage . Of anyone have issue same want to share.
Thanks.

Title: Cell Standby draining 71% of battery?


问:
samsung galaxy note 3 factory reset
I have a samsung galaxy note 3. I tried to do a soft factory reset and my phone shut down and now it's been more than 15 minutes and my phone is flashing the samsung galaxy note logo then the little android guy laying with a red error on him and it goes back and forth.
Is that normal? should it take long??</p>

Title: samsung galaxy note 3 factory reset


问:
Is it possible to run a custom kernel that works with T-mobile wifi calling?
I am interested in understanding if it is possible to install a very lean version of Android (to maximize performance) and maintain TMO wifi calling.  If you have had success using a custom kernel and configuring to work with TMO wifi calling please state this in your reply.</p>


问:
Is there currently a method to install Android as the main OS for Lumia 640 LTE?
Sorry if this has already been answered. I've scrounged for recent answers about whether it is possible to replace a Lumia 640 Microsoft phone OS with Android, but as far as I can tell it's not yet possible. I figured you guys would have a better idea than myself.

Long and short of my asking is that I bought one, and I just don't like the OS at all. I'm very much a novice with rooting and any sort of software manipulation, so I came here hoping for some good news.


问:
How to disable charge waiting time Alcate 9024w
My Alcatel A30 tablet 9024w is a great tablet but it has this issue. If i let my tablet die it will be 20 minutes of charging until i can use it again. I would like to disable this self-imposed limitation.

And btw, I know there's gonna be that one huy who's like, "isn't that bad for the battery if you do that?" And I am going to say right now, I dont care.

(Sorry if i come off a bit harsh)


问:
How can I prevent apps sending cleartext over open Wi-Fi without using a VPN service?
Sending cleartext data over an open Wi-Fi network, or an encrypted network controlled by someone you don't trust, is very bad for security. This has been discussed here previously. The usual solution to this is to use a VPN, but that adds latency, and requires you to run it on your own server or buy a third-party VPN service - which is itself someone you have to trust.

Most reputable apps these days use HTTPS or other encrypted protocols to communicate with their servers, and most websites are available via HTTPS too. So in many cases it's safe to let these apps communicate over any network - there's no need for a VPN. But as an end user, I don't know if any given app is secure.

I'd like to block all apps from using cleartext while I'm connected to an untrusted network, but allow HTTPS and other encrypted protocols. I don't mind the block being port-based: I'm not worried about malicious apps "tricking" the filter by sending cleartext over an SSL port. I don't mind if the solution uses Android's "always-on VPN" feature to work, as long as it doesn't require a remote VPN server. I'd like to avoid the need to root the phone. I'd also like to be able to designate some networks as "trusted" and allow cleartext data over those networks.

Is there a way to achieve this?


问:
Flashing custom recovery using DD with locked bootloader?
So, I understand that you can flash a custom recovery using DD. I have done this on my Nexus 6p, with an unlocked bootloader.

My carrier is Verizon, which loves to lock down bootloaders. I have another phone, an HTC One M7, which has been branded by Verizon. I have gained temporary root access using Kingroot. I am wondering if maybe I could flash a TWRP build to /dev/block/bootdevice/by-name/recovery. I am afraid that this will brick it though.

Even if it flashed and booted successfully, would it even work to flash a custom ROM?

Thanks for any helpful answers


问:
adb shell touch is not working
I am trying to force the timestamp of a specific file on my android device to a specific date.

when I run..

```<code>touch specific_file
</code>```

it succeeds and sets the timestamp to the current time.

But if I run

```<code>touch -t 20170901.123456 specific_file
</code>```

the command does not take, although it does not scream out an error. This is the exact format and argument structure that the version of touch I am running in Busybox suggests.

Is this just a bug?

Title: adb shell touch is not working


问:
Are Android updates encrypted?
We are seeing weird traffic in our network. We opened today the update of Android devices and capturingvtrafgic we see encoded, binary or encrypted data over port 80.

Are Android updates encrypted?
What protocol is used?

OwnerDisplayName: Filtered Port

Title: Are Android updates encrypted?


问:
SU binaries stop working randomly and require device reboot
I'm having this very strange problem with rooted devices: SU binaries are installed along with SuperSU and everything works fine. From time to time SU stops working until I reboot the device. If I open SuperSU I get the message saying I should install the binaries. Testing from shell SU doesn't work either.

I am not able to reproduce this reliably but I have noticed it right after reboot. So I turn the device on, SU doesn't work, then I reboot and then it does.

The device is running Lollipop and SuperSu version is 2.65. This matches the SU binaries version, I checked. Hardware is a prototype device based on a phone, not sure about the details though. I do know it has a Mediatek processor.


问:
Using a presentation pointer with Android tablet
I have recently bought the Nvidia Shield Tablet, which happens to have Mini HDMI output. As a PhD student in Maths (potentially staying in academia afterwards), I give and will most likely continue to give presentations on a regular basis and was wondering whether it would be possible to do away with bringing my heavy laptop to conferences and just completely rely on my tablet instead.

It seems like the answer is positive, as there are Android versions of pretty much all the computing software I use and a Bluetooth keyboard should allow for a rather smooth 'working experience'. One final issue that stands out is presentations and in particular the comfort of having a pointer to work with. The way cheap wireless pointers work these days is that you simply plug in a small usb stick to your laptop and immediately it starts to work. Can something similar be achieved with Android? Quickness is key here, I really want to be able to just plug things in and be good to go. I can see two possibilities:

1) Use the so-called USB On-The-Go adapter (micro USB to normal USB) and then plug in the usb stick provided. Any chance of this simple approach being a solution?

2) Buy a more sophisticated pointer which has Bluetooth support and use it to connect it to your device. I guess once it is connected it should work immediately?

King apologies if this question is a duplicate (I sincerely think it isn't, I have done a fair bit of digging) or whether the answer is simply 'both (1) and (2) will work', but I just wanted to be sure before I order relevant accessories.


问:
Erase external SD card via adb
Is it possible to perform "Erase external SD card" action via adb?

To be clear, my goal isn't to manually call partitioning/formatting tools such as newfs_msdos from command line. I want to get exactly the same result as if "Erase.." button was pressed in Settings via GUI, but using a command line to achieve that.

Title: Erase external SD card via adb


问:
Dismissed notifications come back
I'm having an issue on my LG G6 where if I swipe to dismiss a notification (such as a text message or Tweetcaster mention), sometime later (an hour, maybe more) it will come back. Only if I tap on the notification, and go all the way through to the app, does it register as properly dismissed.

There doesn't seem to be a "repeat notifications" in Accessibility which would cause this. Any other likely causes?

Title: Dismissed notifications come back


问:
what image does fastboot -w flashall flashes?
Take Google Pixel as example. I managed to do a full APSO+kernel build and the resulting binaries is located at out/target/product/marlin as the following:

```<code>boot.img
ramdisk.img <-- I believe this is part of boot.img?
ramdisk-recovery.img <-- I believe this is part of boot.img?
system.img
system_other.img
userdata.img
vendor.img
</code>```

Question 1:
If I perform a fastboot -w flashall which of the binaries will be flashed into a phone?

Furthermore, when i inspect the factory image I found the following files:

```<code>bootloader-marlin-8996-012001-1608281716.img
radio-marlin-8996-012511-1609081444.img
image-marlin-nde63j.zip <--- contain basically all images from build plus many more
</code>```

Question 2: Looking at the factory image, is obvious not all images can be obtained by build. I will assume that bootloader and radio are close source, and many more in the zip files such as modem.img, keymaster.img ...etc, are there any documents regarding to all these images?


问:
What app does this notification icon belong to?
What app does this notification icon belong to?  Upper left (x shouldn't be there). Looks like a chat bubble or ribbon. Thanks!!

ContentLicense: CC BY-SA 4.0


问:
Facebook and Youtube apps dont play videos properly in Note 2
I use Samsung Note 2. it works fine. it has only one problem. video thumbnails in youtube and facebook app looks fine but when i play the  video pixels mix. touch screen , audio works fine.
It is my first thread and i don't know  how to upload ss directly. so here is imgur version of problem https://imgur.com/a/7puki   </p>


问:
Can quick charge be enabled with custom rom?
Suppose I have a device (eg Redmi 4) which inherently has quick charge 3.0 support but the developer has disabled the feature to save the cost, then can I by installing the custom rom enable it?</p>


问:
Image Android Phone, then run on Windows
Is there any way to take an image of an android device, then run that image on an Android emulator (e.g. BlueStacks) in Windows?

I'd like to do this as a way to help investigate an issue with some Android software (specifically, a rollout of a Soti MobiControl upgrade which worked on most devices, but erred on a subset with common features (OS version & hardware):

I have a device on which I can reproduce the behaviour, which I'd like to take an image / backup of before doing a factory reset on the phone to see if the issue reoccurs after a clean install.

I'd then use the image / backup to restore the phone to its faulty state if the factory reset resolved the issue, so we could zero in on the root cause (i.e. to find a more efficient fix before pushing this out to all phones).

If I could emulate the faulty device, I could also check whether the emulated version still had the issue, and if so try upgrading the version of Android on the emulator beyond what the device's hardware supports to see if that's the issue.

i.e. this gives me lots of options, some of which are mentioned above.


问:
How do I interpret the numeric columns' output of the adb ls command without the -R?
A little background. I've had an app with a database that's worked fine for a few years. I added new options, including DELETE DATABASE, with this line of code:

```<code>getApplicationContext().deleteDatabase(DATABASE_NAME);
</code>```

No error. But now I get exceptions where I try to re-load or create a new database. I wondered if there was a possibly-corrupted database on the emulator or if a file with the name I was using was present but with 0 size, somehow. I needed to see it in a directory listing. Never seen one before.

Using adb at the DOS command prompt, I (finally; long time spent) found command syntax to show the files. Here's the command:

```<code>C:\Users\Dov>adb ls /data/data/com.dslomer64.servyhelperton/databases
</code>```

Here's the output.

```<code>000041f9 00001000 59b7bc7d .
000041e9 00001000 59b5a17d ..
000081b0 00005000 59b72501 Dictionary.dic
00008180 00002210 59b72501 Dictionary.dic-journal
000081b0 00005000 59b6e3c3 TEST2.dic
00008180 00002210 59b6e3c3 TEST2.dic-journal
000081b0 00005000 59b710c8 TEST.dic
00008180 00002210 59b710c8 TEST.dic-journal
</code>```

YAY. But what are the columns of numbers? Size? Mod/create date?

(I think the two less-urgent questions below just require YES/NO answers.)
(I would hate to start a new Question for either.)

Just to see what I'd get, I asked for ls of the database itself:

```<code>C:\Users\Dov>adb ls /data/data/com.dslomer64.servyhelperton/databases/Dictionary.dic

C:\Users\Dov>
</code>```

Got no error. Got nothing.  Did anything hidden happen?

I pulled TEST.dic and opened it with Notepad. Not text.

But assuming what I pulled is a valid SQLite database, could an app read it?


问:
Personalize Lenovo P2 LED notification
I'm new to the Android community and I've just got my new Lenovo P2. I'm really happy with it but there is one thing that bothers me.
I cant personalize the LED notification settings. For example WhatsApp has no access to the LED control.
I've tried many apps like light manager and others but without success.

I've seen other P2 phones where the LED control worked properly, so I guess it should work somehow.
Has anyone an idea how I can fix this problem? Possibly without root.

Title: Personalize Lenovo P2 LED notification


问:
How to save Chrome bookmarks to a file on an S6?
I don't see any options in the Android Chrome browser to save the bookmarks to a file?  Any way to do that? </p>


问:
Wifi down with Android 6.0.1, errors in 'adb logcat'
I thave these errors when I try to switch 'on' the wifi :

```<code>09-12 22:46:04.850  2590  2590 D HotspotTile: onReceive : android.net.wifi.WIFI_STATE_CHANGED
09-12 22:46:04.850  2590  2906 D NetworkController: onReceive: intent=Intent { act=android.net.wifi.WIFI_STATE_CHANGED flg=0x4000010 bqHint=4 (has extras) }
09-12 22:46:04.850  2562  2843 D PhoneInterfaceManager: [PhoneIntfMgr] getDataEnabled: subId=1 phoneId=0
09-12 22:46:04.850  2590  2590 D HotspotTile: onReceive : 4, 0
09-12 22:46:04.850  2562  2843 D PhoneInterfaceManager: [PhoneIntfMgr] getDataEnabled: subId=1 retVal=true
09-12 22:46:04.850  1814  2530 D ConnectivityManager: getMobileDataEnabled()- subId=1 retVal=true
09-12 22:46:04.870  1814  2527 E WifiController: Wi-Fi driver is unstable. Received CMD_STATEMACHINE_RESET
09-12 22:46:04.870  1814  2527 D SecContentProvider: insert(), uri = 2
09-12 22:46:04.870  1814  3831 D SecContentProvider: query(), uri = 18 selection = isWifiEnabled
09-12 22:46:04.880  1814  2818 D SecContentProvider2: query(), uri = 20 selection = isWifiStateChangeAllowed
09-12 22:46:04.890 16726 16726 D WifiSettings: >>> ERROR_ACTION RECEIVED code:10
09-12 22:46:04.890  1814  3562 D SecContentProvider2: query(), uri = 20 selection = getAllowUserProfiles
09-12 22:46:04.910 16726 16726 W System.err: android.content.pm.PackageManager$NameNotFoundException: com.samsung.helphub
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.ApplicationPackageManager.getPackageInfo(ApplicationPackageManager.java:259)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.settings.Utils.isSupportHelpMenu(Utils.java:3743)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.settings.wifi.WifiSettings.addOptionsMenuItems(WifiSettings.java:2204)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.settings.wifi.WifiSettings.onCreateOptionsMenu(WifiSettings.java:2015)
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.Fragment.performCreateOptionsMenu(Fragment.java:2376)
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManager.java:2049)
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.FragmentController.dispatchCreateOptionsMenu(FragmentController.java:266)
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.Activity.onCreatePanelMenu(Activity.java:3148)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.internal.policy.PhoneWindow.preparePanel(PhoneWindow.java:661)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.internal.policy.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:1042)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.internal.policy.PhoneWindow$1.run(PhoneWindow.java:350)
09-12 22:46:04.910 16726 16726 W System.err:    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
09-12 22:46:04.910 16726 16726 W System.err:    at android.view.Choreographer.doCallbacks(Choreographer.java:686)
09-12 22:46:04.910 16726 16726 W System.err:    at android.view.Choreographer.doFrame(Choreographer.java:619)
09-12 22:46:04.910 16726 16726 W System.err:    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
09-12 22:46:04.910 16726 16726 W System.err:    at android.os.Handler.handleCallback(Handler.java:739)
09-12 22:46:04.910 16726 16726 W System.err:    at android.os.Handler.dispatchMessage(Handler.java:95)
09-12 22:46:04.910 16726 16726 W System.err:    at android.os.Looper.loop(Looper.java:148)
09-12 22:46:04.910 16726 16726 W System.err:    at android.app.ActivityThread.main(ActivityThread.java:7325)
09-12 22:46:04.910 16726 16726 W System.err:    at java.lang.reflect.Method.invoke(Native Method)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
09-12 22:46:04.910 16726 16726 W System.err:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
</code>```

Any clue to be able to recover wifi network ?


问:
What is the easiest way to get host file adblocking AND security updates?
For a long time I've been using LineageOS to get root access and long-term updates. However my requirements are rather limited: I pretty much only use root access for system-level adblocking, and I want long-term security updates for my phones.

I am wondering whether I can get this without installing an alternate ROM? Do any manufacturers offer this in their stock ROMs? Or can you suggest any other solutions?


问:
How can I root a Lenovo Moto G5?
I think question is quite clear ... I have a Lenovo Mot G5, and I want to root it (mostly to use AFWall), but I have not yet found any "clean" way to do it. Do you know any way to have it rooted, but not bricked ? ;-)</p>

Title: How can I root a Lenovo Moto G5?


问:
How to fix Bluetooth taking around a minute to connect to devices?
With the bluetooth on my phone I used to be able to listen to music on my headset, get into my car while the music is playing, have the bluetooth hand off its "media" processes to the car's bluetooth, then pass it back to my headset when the car shuts off and its bluetooth connection ends.

Lately, my phone has not been doing that successfully, and will only connect (sometimes) if I wait for long (1 minute), or if I open my bluetooth options and force it to connect.

I feel like it's something to do with how my phone is "searching" for bluetooth devices around it, but I have so far not had any luck with poking around in its discovery and connection settings. I have tried resetting network settings and did a factory reset too but to no avail.

Basically the way the process should be is:

Headset connected as Media and Call device

Another Media Only device (that has been previously paired) turns on in range

Bluetooth passes Media to new device (speaker, car stereo, etc.)

Media only device turns off

Bluetooth passes back to the Headset

If anyone else has had a similar issue and knows of a fix including those requiring root access, please let me know.

Phone Info:
Verizon LG G4 (VS986), unrooted, Android 6.0


问:
How do I export saved web pages from Chrome on Android?
I have a lot of sites saved for offline reading in Chrome.
Some of them aren't online anymore.
Is there a way to get them out of the app in HTML files?

Chrome version:  60.0.3112.116


问:
Is there a way by which I can uninstall a specific update to an app?
I have an app, Uber, that is taking up huge space on my phone. It cannot be moved to sd card.

Recently, they've launched an update of size 21MB. I'm afraid of the fact that, every time there is a new update, the size of the app increases. I know that I can uninstall all updates of an app from settings, but is it possible to uninstall a specific update of an app? I'm asking because if I find the update useless, I'll uninstall that specific update only.

It is preferable that the process does not require rooting. I'm working on Samsung Galaxy On7, Android 6.0.1-Marshmallow.


问:
Change languages for specific apps
A week ago I was surprised with an update of an app that suddenly changed its language from English to my local language. This kind of change is usually good for most people, however, I would like to have the option to change it back, since I was used to the English therms the app was using...

Is there a way to change it back for this app (or, maybe, select apps that would be in English) without changing the whole phone language?

This specific app does not provide an UI (or any way to provide specific configuration) where I could select the language I want (I also don't know any app that has that kind of configuration option inside it)...

Title: Change languages for specific apps


问:
Is there a way to filter “My Cards” in the Trello widget?
In the web version of Trello the "My Cards" page can be filtered to only show cards from specified boards. I use this to filter "My Cards" to show cards from personal boards and hide cards from work boards.

In the Trello widget for Android I can't find a similar filtering option. Is there one? If so how do I get to it?

OwnerDisplayName: WileCau


问:
How to root without executing unknown binary? (Open source/adb shell root?)
I have an Android 6.0 phone that has not received updates in a year.  It has likely dozens of security holes that allow one to gain root access.  I wish to do this in order to remove pre-installed bloatware system apps and change system config files.  However, all methods known to me involve running some closed source rooting tool that may very well contain a trojan or other malware.

What open-source (or ideally, type-in adb shell command list) method is there to root an Android phone not patched in the last year?

Of course, if a rooting tool is open source I would need to build it myself to be sure - so that would involve much more work than executing a script or entering shell commands


问:
Installing an app after deleting its apk using Bloatware removal tool
I'm working on Samsung Galaxy On7, Android 6.0.1-Marshmallow. It's unrooted.

My phone has a lot of apps preinstalled that I don't use, like Google Play music and movies and TV. I want to remove these apps completely as they use up a lot of space on my phone'so internal memory.

I found here a tutorial on how I can remove such bloatware without rooting my phone. However,  my question is: if I completely remove the app files from my phone, then will I be able to install them later, if need arises?

For example, in my phone, MS Word and Excel are preinstalled, which is why I can't move them to sd card. If I remove the apk files, and later try to install it again, will I face any trouble, and will I be able to move it to the sd card?

N.B.: I don't want to root my phone.


问:
Delete ALL cookies in Android Chrome
Running Chrome 60.0.3112.116 on Android 7.1.1 I tried to remove all cookies from the browser using the Clear Data button provided in Advanced tab of Chrome's Privacy Settings (selected All Time to make sure to delete all stored cookies).

However, the cookies section in the Advanced tab showed about 30 cookies before clicking on Clear Data and I had 23 left after deleting the cookies. Since some cookies can be deleted while the browser closes I quit Chrome and went back to Settings, giving me the same 23 cookies left.

I am a bit surprised about that fact since I thought clearing all data actually means that all stored data (including all cookies) is being removed, which in fact obviously does not seem to be true.

Since I am using Google News App and allowed to open web content inside the GMail App I think those 23 left cookies might come from those two apps since those apps should be based upon the system-built-in version of Chrome, but I am not sure and unable to proof this assumption.

In order to make sure that this is not a somehow other related problem, I went to Apps of Android Settings and cleared Chrome's cache which does not result in any changes. However, Clear All Data via the Manage Space option does delete the cookies hence resetting Chrome to its initial state.

Is there any way to really remove all cookies from Chrome without resetting Chrome via Android Settings as described above? Do you have any suggestions where those 'additional' cookies come from?

Title: Delete ALL cookies in Android Chrome


问:
Oneplus one is not starting as expected
My OPO(One plus one) with cyanogenmod (last update in August 2016) purchased 2.5+ yrs back, is not starting when it is connected to USB or starting to fastboot mode when it is not connected. It is happening from last 3 weeks only.

When it is in fastboot mode, I connect it to my PC and run command fastboot continue to resume the boot and it starts. But I need to do it everytime.

So I have wipe cache partition and then full factory reset. But I can see that the problem still persist.

I have installed TWRP now. But it din't solve the problem too.

If I install some custom ROM, would it solve the problem?

Why fastboot mode comes everytime while there was no update happened
recently?

Can it happen due to some hardware issue? (I actually put a cup of hot tea on back of my mobile for a min .... :( )

:: Update ::

I have installed LineageOS. But still facing the same issue.

Title: Oneplus one is not starting as expected


问:
Multilangual spellchecking in Android
I have a ZTE Axon with Android 7. Sometimes I write German texts and other times I write English text.

With English as system language the spellchecking is set to English and it considers German text I write to be wrong. Is there a way to switch to bilingual spellchecking?

Title: Multilangual spellchecking in Android


问:
How to Automatically Connect as MSD on Android 7.0
There is another similar question for an older version of Android and instructions here for Android 6.0 but neither work, plus I would like to have the entire phone connected, not just the MicroSDHC card.

How can Android 7.0 be force to automatically connect as USB Mass Storage Device?

It would be nice to have solutions for both standard and rooted phone but mine is currently rooted.

Right now, it is a pain since it automatically connects for charging and one must unlock the phone to get to the notification to open the list of options to select Use USB to Transfer Files. This is too much work as the only reason I am connecting the phone to a computer and not a charger is to get files.


问:
Storage not recoverable
Are there any known conditions where an update results in irrecoverable storage?  I am asking this because an Android device has lost storage and I have been unsuccessful in recovering 3GB.</p>

Title: Storage not recoverable


问:
How to decrpyt & extract data from encrypted removable SD card from another device?
My Xperia z5 died for an unknown reason and I had to send it for repair. I had an SD card inside for my pictures and kept it home. After a longer time, Sony sent me a new phone. Happy, I put back my Sd card to see that the files were existing but are encrypted, the new phone not having the same setting.

I don't really remember setting the encryption but now its too late.

Now my question, I have several pictures saved on my computer unencrypted who are also on the phone. Is it possible to extract the key by comparision or is android encrypting the whole drive making it impossible to find the key when you have the original file at disposal?


问:
Set phone to unlock when pressing fingerprint sensor button (LG V20)
I'm not sure if the above question is specific to the device, the LG version of Android, or a general Android limitation/issue, so apologies if my tags are inaccurate.

LG V20 user here, running Android 7.0, the latest update for the device so far.

Phone is set to unlock using fingerprints, with the fingerprint sensor slash button on the backside of the device.

Currently, the phone unlocks both when I press this button or when I simply rest one of the registered fingers on the sensor, leading to 'accidental' unlocks sometimes, e.g. when simply picking up the phone.

My question: Is it possible to change this behavior (In stock Android? In some custom ROM?) to only unlock when the fingerprint sensor button is actively pressed, not when a finger simply rests on the sensor?


问:
Storage space running out when using adoptable storage
I'm using adoptable storage in Android 8.0.0. I have a persistent notification that says "Storage space running out. Some system functions may not work."

Settings > Storage shows this:

Attempting to move apps to the SD card from there results in a toast that says "Not enough storage space."

How can I make use of the whole 24.00 GB I get with the SD card?


问:
Will a OTG + USB ethernet cord work for Internet access?
Will a OTG adapter (the one with a micro-b male on one end and USB 'standard' female port on the other end) connected to a Ethernet to usb  ('standard' USB male one end, female/male Ethernet end on the other) work to connect an Android device to a network, providing of course proper sofware support on the devices side? My guess is yes, but I though maybe their is something special about Micro-b to ethernet adpaters

Example of OTG adapter: https://www.amazon.ca/Micro-USB-OTG-Adapter-Cable/dp/B00D8YZ2SA

Example of Ethernet to USB: https://www.amazon.ca/Cisco-USB300M-Linksys-Ethernet-Adapter/dp/B001NLV4TQ


问:
Provide APN settings from outside without Internet (i.e. SMS, QR Code)
I'm looking for a way to provide APN settings to a device that doesn't have an internet connection yet.
It is intended to set up hundreds of devices more quickly by a variety of users across the country. They have sim cards for each device, but we need to change the APN settings for them to work. Testing has shown that our customers/users have the most trouble with this step.

Is it possible to provide APN settings via QR-Code or SMS?

You can prompt a user to go to WIFI settings etc. this way, but can you provide a configuration, too?

It of course doesn't have to be 'hidden', but we want to avoid people typing off these addresses, the easier we can make the set up process of their devices, the better.


问:
Change shown username and hostname in terminal emulator
I am usong Sony Xperia Z3 6603 with latest available android. When using the Terminal Emulator, by default, the shown username@device is some random jibberish@D6603. Copy below:

u0_a218@6603

I have fiddled around with the hostnames, since one was localhost and the other one was the wi-fi random generated one. Its the one in net.hostname and the /proc/sys/kernel/hostname, i havent touched the /etc/hosts since i think it will break something. I havent touched either build.prop for the same reason, i dont really know what depends on the ro.product.device. $PS1 gives different output than the shown username.

The question is, which values are safe for editing, and which one should be edited for the shown username?


问:
how to unbrick android phone?
I have an Oppo N3 android phone and is now hardbrick. The cache and partition is formatted. Now I can only go inside recovery mode. ADB sideload not working because it stuck at 48%. Install from sd card also not working(Installation aborted). ADB shell not working(Device unauthorized). Cant flash using sp tools because do not have scatter file. If you guys have any idea what i should do is very much appreciated.</p>

Title: how to unbrick android phone?


问:
Phone's power and volume buttons will not work in bootloader
I have recently decided to unlock the bootloader of my BLU Studio X8 HD. I have first installed the ADB drivers and afterwards I have used the command
adb reboot bootloader
to boot the device into the bootloader. This was the only way to boot the device into the bootloader, PWD + Vol. UP goes to recovery, PWD + Vol. DOWN goes to factory mode (which contains a bunch of hardware-based tests), and PWD + Vol. UP + Vol. DOWN does nothing.

Afterwards, I ran
fastboot oem unlock
which displayed the Are you sure that you want to unlock the bootloader on your phone? screen on my phone. Vol. UP is yes and Vol. DOWN is no. I clicked both of the buttons and there was no response in the terminal or on my phone. I even pressed the PWD button after each time I pressed either of the volume keys.

I need help with unlocking the bootloader.


问:
Android 5.1.1 won't install apps [re asked]
I have a Alcatel onetouch model 50540 running android 5.1.1 as in the title. it is rooted and began uninstalling pre-installed bloatware on my device. I do not have a complete list of uninstalled apps because I had only kept track after the first few, but ill list the ones I do know about

Download Manager
Downloads
Talkback
Hangouts
Cricket Wi-Fi Manager
Camera
Email
Onetouch Launcher
That is the essence of what I did. I do have an edited hosts file as a makeshift adblock.

Play store gives me an error code 0 to which I removed app data and tried again, same problem.

I have tried installing local apps which brings up an "app not installed" box.

Lastly I have tried do directly extract the app into /data/app and rebooting which didn't work.


问:
A data forensic tools for android
I have recently taken interest in digital forensics.  What is the best tool, or set of tools to obtain and analyze images of android phones?</p>

Title: A data forensic tools for android


问:
Custom voice commands
I'm looking for an open source way to specify custom voice commands that use the Google voice recognition backend. It has to be open source and work offline. (I already managed to get the Google app which is responsible to voice recognition to work offline, restricted by Xprivacy and AfWall+.)

What I need to do is relatively simple. For instance when I say "Turn on light 1" it has to send a simple HTTP request to ’http://192.168.1.5/light/1/on’, when I say "Temperature to 23 degrees in the living room" it should use the url ’http://192.168.1.5/livingroom/temperature/23’ instead etc.

I know there are closed-source apps that can do this (Tasker for instance), but I I'm way too paranoid to install something on my device that needs network/Internet access and is closed-source. So are there any open source apps that could do this?

Title: Custom voice commands


问:
Android 8: USB connection now drains the battery, instead of charging it
Ever since I updated to Android 8 on my Nexus 5X the USB connection drains the battery, instead of charging it. I have tried it with my laptop, my workstation at the office and another computer, and the result is always the same.

The picture below shows the battery charge graph. After 2 hours and an half connected through USB to the computer the battery went from about 20% to 7%. I have no applications running, turned off the WiFi and the mobile data.

Why has Android 8 changed the behaviour of the USB connection? Is there any way of reversing it?


问:
Moto G 4- Call ended when I start calling
I have a trouble with my Moto G4! When I tried call someone my cellphone start calling and after 5 seconds it ened the call! I remove my SIM CARD and put it in another cellphone it happened too!

Can someone help me?


问:
Google tells me my smart phone was in Brazil two days ago, but I've been in California - what could it be?
I'm worried because Google tells me my smart phone was used to access my Google account from Brazil a couple of days ago.  But I and my phone have been in the San Francisco Bay Area the whole time.
(Note: Google find phone does not use a cell phone tower location, but judges by ip address location)

Two possibilities have occurred to me:

(1) Opera Max (a VPN which offers a free data compression service) has been running on my phone for a few weeks - at least I hope it is Opera Max.  Could it be that Opera Max allocated a temporary IP Address located in Brazil as part of the VPN service?  There are no other locations besides Brazil showing up, but then again Google only showed "recent" locations, without being specific about how long "recent" is.

(2) Somebody has created a doppleganger of my ATT sim card, and is using it from Brazil in an attempt to hack me and steal something.
I'm planning to go down to ATT and change my Sim card.

If anyone has had similar experiences with their phone accessing IP addresses in unexpected distant locations, or knows anything about this subject, I would be grateful to hear about it.


问:
Google Maps - Avoid motorways only on part of route
Planning a route in Google Maps, I am trying to create a route which is part motorways, part country roads (i.e. not motorways). Say, for example, that I want to create route "A --> B --> C", and I want to go from A to B using motorways, but from B to C I want to avoid motorways. Is there any way to do that in Google Maps - or at least in another platform?</p>


问:
Music player does not start when pressing Play on stereo
I have a new Asus Zenfone 3 I bought back in February. I'm having issues getting my bluetooth devices to automatically start playing when paired.

With all my previous phones, I can pair the device with bluetooth speakers (i.e. car stereo or portable speaker), press the Play button on the bluetooth device, and the phone would start playing music from the last app. This worked with a Samsung S2, LG G2, OnePlus One, and OnePlus Two. The process should be the same, in my experience.

On my Asus phone, I have tried with both Vanilla Music Player (F-Droid App Store) and the Google Play Music app. I have started songs, got to my car, and have it continue playing. If it stops for whatever reason (i.e. a phone call), then I have to fiddle with the phone to get music playing again.

My goal is to have my old behaviour without being forced to wipe and root it - connect to a bluetooth speaker, and use the bluetooth's controls for the music app even if it's not currently running.

The phone is running Android 7.0, phone model number is ASUS_Z012DC


问:
How to access history or recently closed tabs in Chromer
I use Chromer in web heads mode. Occasionally I have had all web-heads disappear, presumably due to a crash. In past sometimes Chromer suggested me to reopen old tabs when restarted but not today.

Is there a way to make it reopen recently closed tabs without being prompted? I cannot find anything like that in the menus.


问:
Is there any method of installing Xposed framework on non-rooted devices with stock recovery?
I am trying to figure out if there is  a method of installing Xposed framework on stock ROM without custom recovery (e.g CWM or TWRP). The conventional method that I am well familiar with is installing the framework via Xposed app on a rooted device.

I researched a bit and most workarounds were promising although not successful:

According to this source, the method involves setting the system partition writable then pushing the necessary files via adb commands however fails with Permission denied errors. I suspect bootloader issues (which seems to be locked) here but not very sure.

The other way, described here doesn't need custom recovery. This involves installing a third party application (FlashFire) to flashed unsigned .zip but unfortunately seems to require root (from description).

The last one involves using new systemless xposed framework but the problem is that it supports android 5+ versions.

So is there any convenient way of installing xposed framework on stock recovery without root?

Edit

Following important discussions raised in comments, I guess I have to explain why I want to bypass root-based installation procedure, it's because the device in use is not rooted, so I need to use a non root installation mrthod.

Contrary to the comments however, some users have used Xposed without root:

Xposed only needs root access when you install it, then everything
  else is completely transparent to the user because the framework acts
  as a separate conduit to the system -- it doesn't go through the usual
  SU channels

Also the device is running Android 4.3 stock


问:
Using gamepad hardware controllers with games that don't explicitly support them?
War Robots, which is a very popular game, AFAIK has no support for gamepads. (Thus limiting interaction to the touch screen).

Yet in this forum thread one person reports some success with a gamepad. (Logitec F310)

Does this mean that War Robots must have support programmed in? Or not? It's been suggested a rooted device is necessary, but I don't see that being likely, since the gamepad is surely merely acting as a HID alternative to touching the screen?

The forum thread mentioned that the mapping of keys with the Logitec F310 is not ideal. Why is this not configurable? (Might it be configurable on others? Or is it hard-programmed somewhere?)

Why I ask: I want to buy a gamepad to play War Robots but at the moment I'd be buying blind without any idea if, or how well, it would work.


问:
Huawei Nexus 6p Product Id from fastboot mode
I want to unlock the bootloader of my Nexus 6P but I'm unable to retrieve my product ID from common way

```<code>*#*#1357946#*#*
</code>```

Because my phone is stuck in boot loop.

Product ID is required by Huawei website to provide the unlocking code for bootloader.

I want to know where the product ID is stored in the android and is it possible to read it by using the fastboot commands?

Update: I have managed to raise a request for the bootloader unlocking key with Huawei support. I will update again, once I get the key.

Update2: I got the bootloader unlocking key from Huawei. However it does not seem to work or I am using the wrong command. Here are the commands that I have tried:

```<code>fastboot.exe flashing unlock VP2T97EWDWSZDX8U

fastboot.exe oem frp-unlock VP2T97EWDWSZDX8U
</code>```

Both of them end up in an error with no specific description.


问:
Can I install Lineage OS on unsupported device?
I don't know what to do, because I have older phone HTC Desire 526G and updates are just not pushed and I believe that they will not push them ever, but out there there is so many vulnerabilities for the OS which I'm running currently 4.4.2 Kitkat.

Buying a new phone is not an option for me right now. So my question here is; can I somehow install Lineage OS on that device? What is the worst it can happen?


问:
Can a device running Android OS record a stereo audio source?
This question is very old. Time to ask again, because hardware and software changes. The question is simple.

What have I tried?

Searched here. Dead links.

Read up on OTG.

Got a Roland Go Mixer. Monitor jack outputs stereo, specialized app records mono, other apps still record the phone mic.

I find out that this is a long standing issue, and that neither the OTG USB sound card nor the specialized app is to blame.

So the question is simple, and I suspect the answer is very simply, no. Not on any device running Android OS, with any audio hardware, with any audio driver, with any specially written app therefor.

So, as per the title: Is there an exception?


问:
Android Messages does not recognise phone numbers in messages
I have a Nexus 5X with Android 8 (Oreo) and Android Messages v2.5.211

I can not call most numbers in messages by tapping them. After some research I found that is works for others, but not on my phone. What could be the cause?

Example:
Working (not my phone):

Not working (my phone):

The first screenshot is from Android 7.1.1


问:
Microsoft apps always eating up space with data, for apparently no reason
Microsoft apps (Excel, PowerPoint, Word) use up space apparently for no reason.
At this point, I do not use them.
I am using a Samsung J7 with Android 6, with 16Gb internal storage and no SD card.

Since I often run out of space, I check which apps are using it. I always find Microsoft apps are taking up space for data, and this seems strange to me.

For instance, I go to Settings -> Applications -> Application Manager -> Word -> Storage,
and I see:

```<code>Total 256 MB
App 104 MB
Data 152 MB
</code>```

Why would Word use 152 MB of Data, if I did not read/use any?

I hit CLEAR DATA not long ago, and I checked that the corresponding storage space was actually freed to 0 MB.
Now it is taking again 152 MB.

What are those data?

It is not that much space, but in my case it makes a difference.

Excel and PowerPoint behave similarly.

A stranger case seems to be OneNote, with

```<code>Total 3.89 MB
App 0 MB
Data 3.89 MB
</code>```

EDIT: Now, two days after the initial post, Word takes up 16 kB. That is fine. I will check periodically to see when it increases Data size.

EDIT: A couple of months after the initial OP, without using any of the apps, Excel had 251Mb of Data.


问:
How can I hide sim card feature reference in notification area
In every samsung phone that have 2 sim card enabled, you will see a small reference to tell which sim doing what

But no thanks, I know which sim doing what on my phone, you doesn't need to remind me that every single time I've glanced my notification bar, samsung

How can I hide this reference? Thanks


问:
Create a Gmail address for a Google account but use another email as the login
I want to add a Gmail address to my account (that I will not use) but I don't want that address to be my main address (i.e. my login) for Google, because I already use me@example.com everywhere.

I don't have Gmail, but do have a Google account on a personal mail address (me@example.com) where I read emails from. When I got an Android phone, I tried to add my Google account, it keeps asking me to create a Gmail address. Without that account, I basically can't do anything with it.

As the Gmail creation form tells me that the Gmail address will become the main address, I'd like to know if/how it's possible to set me@example.com the main address afterwards.

Or, if you know a way to use my Android with my Google Account without Gmail.

OwnerDisplayName: Matthieu


问:
my browser cannot visit localhost after installing apache2 on termux
my android browser cannot visit localhost after installing apache2 on termux.
How do i access the server by visiting localhost?
I hage tried restarting the phone but no change</p>


问:
Are there any custom ROM's for the Pantech Crossover?

Possible Duplicate:

  Where can I find stock or custom ROMs for my Android device?

I can't find any ROM's that support the Pantech Crossover, since it's not a very popular phone. Are there any?


问:
Why Key Test app shows KEYCODE_UNKNOWN when I press headset control button when the Generic.kl contains KEY 226 HEADSETHOOK?
My Phone runs Resurrection Remix 7.1(Redmi 3s). When I press headset control button, the key test app identifies the code as 226 but says KEYCODE_UNKNOWN. But the Generic.kl file contains the line KEY 226 HEADSETHOOK. Also I cannot play/pause the music using headset control button.


问:
Downloading an HTML page
Is there a way for me to download an HTML page to a folder on my smartphone?

I usually make a copy in PDF format but sometimes it does not get very good.

Title: Downloading an HTML page


问:
Getting notifications for new TV seasons even though notifications are turned off in Google Play
I get notifications for new TV seasons even thought I have turned the following notifications off in Google Play Movies & TV:

About TV Shows

About watchlist

About rewards

Here is what the notification looks like:

I would expect that deactivating "About TV Shows" would stop me from getting them, but they keep popping up. How to I exorcise them?

I am using an LG G6 with Android 7.0.


问:
how to completely factory reset my phone without messing it up?
So basically me, the stupid idiot, rooted my phone using Kingroot. Bad choice. Now I want to completely factory reset my phone. My friend suggested flashing it twice and then resetting it. How do I do it?

Phone:
Samsung Galaxy S3 mini

Model:
GT-I8190

Version:
4.1.2

Baseband version:
I8190XXAMG4

Kernel Version;:
3. 0. 31 - 1332988
se.infra@SEP-110 #2
SMP PREEMPT Sun Jul 28 14:54:47
KST 2013

Build number:
JZO54K.I8190XXAMG4


问:
psiphon connects successfully but blocked sites are still blocked
I've installed psiphon and I launched it in vpn mode and it connected successfully. However, the sites I know are blocked in my country were still blocked.

This didn't use to happen, psiphon used to work great but now it seems like the device isn't tunneled at all.

Android version : 6.0.1

Psiphon client version is 164

Again it connects successfully but the effects I expect aren't there.


问:
Is it possible to update android version in Motorola xoom tablet?
I have a tablet of Motorola (XOOM MZ604), it is rather old but for me looks and behaves like new, except of one big problem that I cannot install important applications on it because the android version of the android there doesn't support those applications (such as google docs). My question is if it possible at all to update the version of the android in this tablet, and if it is possible then how to do that?

By searching on this site I found the following 2 questions and answers (This question + this question) but they don't help me because the answers there are about chrome while my wish is to update the version of the android. Beside of that, I've searched a lot on google but not really found an answer to my question. I'll appreciate a lot a clear answer.


问:
Can't pull from /system/bin
Ok so I'm trying to adb pull some files from /system/bin and adb states that file doesn't exist (yes it does exist) it's same thing with /system/xbin while pulling from /system/lib/ works just fine.
I dont have root, and permissions for all folders are 755.
Any solutions?</p>

Title: Can't pull from /system/bin


问:
Navigation bar becomes transparent in "recent apps" panel
My navigation bar becomes transparent in the recent apps panel, so it collides with the recent panel buttons at the bottom of the screen.

How to fix this?


问:
VPN-Always-on VPN disconnects WiFi on my tablet
I'm trying to connect to my work vpn with my Galaxy Tab S2. I can connect just fine with the same settings on my Samsung Note 5.

Using : L2TP/IPSec PSK.

When I put the same settings in for my tablet it says "Unsuccessful". But the drop down on the screen says "VPN is Connected" However there is no duration. Sent and Received show info was exchanged. Our network guy can also see this activity. This is with Always-on selected.

When Always-on is selected it cuts the wifi out and says "wifi is connected, but there is no internet"

Any help would be appreciated!!!


问:
Casting to TV with wifi network- no internet
I have a wifi network but will be turning off the internet source.
This is because I use the phone for all internet needs, apart from casting.
Therefore how can I cast to the TV which has the chromecast dongle set up on my wireless network ~ no internet.</p>


问:
How to extract SMS/MMS from Android to readable format?
Looking for a way to extract text messages, photos included, to a readable format like HTML, PDF, RTF, etc. Is there any free software that can achieve this?</p>


问:
How can I remotely control my phone via android studio?
I need to remotely control my phone from computer.

My touch screen is not working

My display is broken I can't see anything

I have android studio and sdk's for my phone not sure which was needed but it was jellybean so downloaded all sdk's for that

Phone is pattern locked but I can unlock it(muscle memory)

Not sure if USB debugging is activated or not

Phone: Red Mi 2

OS: Ubuntu 14.04


问:
Ethernet is connected to android device. I am able to ping 8.8.8.8 from adb shell, but not able to browse internet
Ethernet is connected to android device. I am able to ping 8.8.8.8 from adb shell, but not able to browse internet. The Ethernet connection is doesn't show up on notification bar.

I have tried setting up STATIC IP and tried updating route table, but no luck.


问:
WTF! How can a adware get installed inside system level folder on a non-rooted phone?
I dont know  how could this happen.The phone started popping ads randomly everywhere.I ran malwarebytes and found a RockClient.apk installed on my phone in the system level.There was another Dropper agent installed uninstalled it.But this was in systems so i disabled this for now.

I am curious how could this have occurred,did it replace my rom signature.Or is there a very genius guy behind it.Also is there a way to remove this without rooting the phone?(probably there isn't one).But still i am curious to see.Did this happen to anyone else?


问:
Cyanogenmod 7.1 doesn't send MMS
Not sure when this started to happen, most likely after I upgraded to cyanogenmod 7.1. I was able to send/receive MMS before without any problem.

Now I can

receive MMS at any time

send MMS when connected to wi-fi

my settings

HTC Desire

Testra

cyanogenmod 7.1

Any suggestions how make sending MMS possible again?

UPDATE

I compared my MMS APN settings with below one and I had to change Authentication and I cannot find MMS Protocol in my settings thouh.

```<code>• Name: Telstra MMS
• APN: telstra.mms
• MMSC: http://mmsc.telstra.com:8002
• MMS proxy: 10.1.1.180
• MMS port: 80
• MMS Protocol: WAP 2.0
• MCC: 505
• MNC: 01
• Authentication: CHAP
• APN type: mms
</code>```

I also tried all other sort of advices found on the Inet like wiping SMS/MMS settings, fixing permissions. Nothing helped.

I wonder if upgrading radio would help?

I also noticed that I have troubles to log into my sip account using CSipSimple after upgrading to 7.1.

Title: Cyanogenmod 7.1 doesn't send MMS


问:
Re-updating an Android phone for test purposes?
For a network test, we require an Android phone to perform an OS update.
  We have a Nexus 6P and a Samsung Galaxy S8+.

The issue is that once we perform an update, it's updated, and no more updates can occur.

Is there a simple way to 'reverse' an update, and re-get the latest update?


问:
Safely erase Moto G (CyanogenMod 12, TWRP 2.8.4.0) for recycling
The web is replete with advice to encrypt Android phones before resetting the phone for recycling.  Using my old-school computer understanding (which may be out of date), the reason is that "normal" deletion simply marks file space as free for future use without overwriting the contents.

I am using CyanogenMod 12 with a 1st generation Moto G, so most of the online info isn't applicable.  Since I am not a developer (either for Android of any other environment), I have to find the least technically involved method possible to encrypt and reset.  For encryption, I found Lekensteyn's answer to be helpful.  For some reason, however, my adb shell does not support pipelines, so my slight modification is, verbatim (except for the password and resulting Hex for the ASCII):

```<code>root@falcon_umts:/ # head -1 | tr -d '\n' | hexdump -ve '1/1 "%.2x"'
head -1 | tr -d '\n' | hexdump -ve '1/1 "%.2x"'
DUMMY
DUMMY
FF00FF00FFroot@falcon_umts:/ # vdc cryptfs enablecrypto wipe password 6d6f746f47
vdc cryptfs enablecrypto wipe password 6d6f746f47
200 0 -1
</code>```

This process took a split second, so I'm not sure if it worked.  From the background I've found online, encryption should take a good portion of an hour.  Is there any way to check whether the phone is encrypted?  I can still use the adb shell commands "ls" and "find" on the /data directory, though I'm not sure if that is the right path for me to worry about.  I'm only interested in making the user-specific data inaccessible, i.e., Contacts, Calendar, personally created folders in File Manager, logins for GMail (IMAP) and Exchange Server.  I have no apps or media files that I need to protect, nor do I have any cloud accounts apart from email accounts above (though I did use the Google store to download a PDF reader once).

Just from playing around (without necessarily a full appreciation), the "mount" command returns a whole whack of entries, while "ls mnt" only returns a handful.

Based on this site, the next step after ensuring encryption is to use Factory Reset.  However, TWRP also has a Wipe function, with options to "Advance Wipe" and "Format Data".  "Advance Wipe" has checkboxes for "Dalvik Cache", "Data", "Internal Storage", "Cache", "System", "USB OTG", which don't all have similarly named folders under the path "/" (so I'm not sure if they map to the file hierarchy).  "Format Data" is described as wiping, so I'm not clear on whether this does the requisite overwriting of physical bits in the nonvolatile memory.  For that matter, the above Stack Exchange solution isn't clear about this either, and I am assuming that the overwriting with indecipherable data is thing being sought in the encryption.

In summary, the questions about safely erasing the phone are:

Is the encryption meant to do the required overwriting?

Does the above Stack Exchange solution accomplish this?
2a. Since it happened so fast, how can I confirm its success?

Is the /data folder tree that I should be focused on?

Is the Settings->Factory Reset sufficent after #2?

Does the default TWRP wipe accomplish this, along with erasure?

Is the "Advance Wipe" or "Format Data" feature needed?

I am assuming that #4 is not required after #5 and/or #6.

Thanks.

P.S. I'm operating under the following constraints: I don't want to use Nuke My Phone because I no longer want to connect it to the internet, and I don't want to install any apps.  I might try dd if=/dev/urandom of=random.txt bs=1G count=2 if I can't sort about my issue above, but the last thing I want to end up with is a crippled system that is only half cleansed.  I will also look into how to extract the data critical parts for destruction, as I'm not interested in selling the phone.  I'm avoiding upgrades to CM because it needs a TWRP upgrade, which requires a bootloader upgrade, which I'm reluctant to do ever since Motorola's handset division got sold overseas.  Note that this page misses many of the points of interest, as it doesn't clarify whether "wiping" does the requisite overwriting, nor the odd encryption behaviour that I encounter.

2017-11-05 UPDATE: I have been unable to get the original ROM to install in order to enable encryption of the solid state drive.  Based on the prospects of wear levelling, I have doubts about the effectiveness anyway.  At this point, my only certain solution is to disassemble the device as much possible, separate away the components that are obviously not electronic, then physically pulverize the rest with a hammer (and with the components in a milk bag to keep them from scattering).


问:
Anyway to achieve frame interpolation or similar video processing for videos in android
I was wondering if there is any way to achieve frame interpolation or similar video processing for videos in android similar to window's SVP (https://www.svp-team.com/wiki/Download).</p>


问:
Unable to delete an app which installed by twrp
I faced this problem when i delete one app and installed again by twrp in the recovery mode.
When i delete this app afterwords and restart the system it will appear again
I tried many times to delete but every time is coming back after restart</p>


问:
Problem "Not registered on network"
I have an old Samsung Galaxy Note II. Rooted.

One day it went off. When I restarted it, it went to a somehow hybrid state between factory and the status it had before crashing, i.e. I had to reinstall everything, everything on mobile sd was gone, BUT it retained root.

Now everything eksr is working (besides some problems due to the old battery, it freeze or shut off every time battery level is about 80%) except for the fact that it does NOT recognise Sim cards (which are ok when mounted to different devices). Messages are "not registered on network" and "insert a SIM card".

I am still using the phone for everything it does not directly require a network registration (photography, reading, games, surfing on WiFi ecc).

Is there a way to correct whatever got corrupted? A number? In fact the phone does receive some signal from the provider (3 to 4 bars) selected - which is that of the unrecognised Sim.

With a new battery it could be a nice device. I love note 2.

Thanks.

Title: Problem "Not registered on network"


问:
How to get contact from stolen Android phone?
I already read Recover contacts and images from stolen phone. And that answer did not work for me. I have explained it on the question.

My android phone was stolen. I need to get all contact of my phone. I had enable sync in that phone.

When I visit https://contacts.google.com/, it has only a very few contacts (only if contact has an email ). How can I get all contacts?


问:
How to migrate data with downgrading from Android 7.1.1 to 5.1
I just bought a new phone and it is running Android 5.1 with little chances for upgrade. On the initial setup, when Android asks were to migrate from, my current phone (with Android 7.1.1) was not available. So I've skipped this step. It, however, has downloaded contacts from, I guess, Google cloud, but the contacts are aged and correspond to my oldest Android I used to have couple years ago. I've tried an app from the play store,  but it has created lots of duplicated records. So I had to reset and start from the beginning.

The questions I have

How to get my contacts in sync in my particular situation?

Is it possible to migrate application data?


问:
Change default EXIF data
Is there a way to change "hardcoded" default EXIF data when taking photos?

i.e I have Make 'LG Electronics', I want it to be 'Apple'

Model 'LG-D802', change it to 'iPhone X'

I know there are a lot of software that can change EXIF data after photo taken, what I'm looking for is a tweak that permanently changes selected EXIF tags at shooting time.

Title: Change default EXIF data


问:
Unsolicited Chrome redirections to scam websites
When I am using Chrome browser on my Samsung Galaxy S8 (Android 7.0, kernel version is 4.4.13-11814589) sometimes when I click on a link or just read a website suddenly I am redirected to scammy websites, like premium.android-sales.com, which offers me some shady OS updates. See the picture (sorry, the redirect is in Polish):

I don't know if the issue persists with other browsers. However, it was also an issue with my good old Xperia Z3 Compact that used Android 6. The issue is usually encountered when I browse following site (webportal of biggest Polish newspaper, so I doubt the scam comes directly from them).

I have found people suggesting that my router's DNS was somehow altered, however the issue happens also when I am outside of my router's range on a cellular network. Could it be the case that some rogue ad is at fault or is it a problem with my phone? How can it be mitigated?


问:
How to disable the smart text selection feature in Android Oreo?
Android Oreo came with a new "smart text selection" feature that uses AI code to make smart decisions about selecting text such as addresses and phone numbers.

However, in my experience this works very poorly on my Nexus 5x where I write (and select) a roughly equal amount of text in English and Swedish (system language is set to English). In particular the smart text selection results in Swedish are complete garbage. I have yet to see the smart text selection feature make an accurate guess of what text to select. On the contrary, it very often makes completely illogical selections when tapping words in regular text flow (ie. text not structured as addresses, phone numbers or similar) that seem to have rather random starting and ending points. I always have to tap the intended word again to get the actual word I want to select, and the number of times I have accidentally deleted a large chunk of text due to this feature is driving me nuts.

Here's an example (that works fine in English, but not in Swedish):

If I were to tap "newspaper" in the following sentence the "smart text selection" feature would accuretely select this word (newspaper).

"Regarding the newspaper subscription: I'd like to have it cancelled
  by the end of the tryout period."

If however I were to write that same sentence in Swedish and again tap the (Swedish word for) newspaper the "smart text selection" feature would select all text from the word "newspaper" to the word "cancelled", which makes no sense. (Note, this example is made up and of course depends on the exact translation of the example sentence)

Please, is there any way I can disable the disable "smart text selection" feature. I have looked all over the settings menu and googled for information, but I have failed to find an answer. Thanks.

Harware: Nexus 5x
Software: Android: 8.0.0


问:
Samsung J3 2016 SM-J320F Setting External SD card as Internal
I'm new to smartphones and this is my first phone . I'm trying to sent external SD card as internal storage. Issue is that phone has only 8GB of ROM and by default 3.2 is System and 3.5 is Used space. So there is just a tiny space left on the internal memory. Android version is 5.1.1. I have rooted it with TWRP 3.0.2-0 and SuperSU. SD card is Kingstone SDca3/32GBn0557-004A00LF.

I have been reading a lot of tuturials to make external memory internal with no luck. I have tried adb tools, formating it with Mini Tool Partition Wizard-DroidThunder, a2sd, Link2SD, etc... I'm also OK with installing custom ROMs that will enable me to make internal memory of my SD card.

Any help will be much appreciated. Thanks xD.


问:
Viber cannot see my photos
I have a Lenovo k6 with Android 7.0. It doesn't have any native gallery app but it had Google photos preinstalled instead. Every photo I take is saved in /DCIM/Camera folder.

There is a problem though. When I press the gallery button in Viber in order to send a photo I have taken, it tells me that there are no photos/videos.

If I go to Google Photos or in file manager, the photos are there.

I also had the same problem with multiple gallery apps (they couldn't find my photos as well). After I uninstalled and reinstalled QuickPick it found them for some reason.

Why is this happening and how can I fix this?

Steps I have already tried:

Connect the phone to my PC (make it show hidden files) and search for .nomedia files. Nothing was found.

Deleted cache and also deleted Viber's cache.

Title: Viber cannot see my photos


问:
How to block Opera mini "AdSense" interstitial ads?
Sometime back, I noticed that whenever I browse the web I frequently see very intrusive pop-ups (ranging from facebook ads and other promotional material which appear in dialog box-like pop ups) which show an odd link in the address bar, something like:

```<code>http://interstitial.opera-mini.net:31222/adsense/default.html?continue=wpob://hide/7ezagro6ztqtdenl_id=GLOBAL%23onboarding%23adsense
</code>```

I don't recall experiencing this before, also I am still using the version as before (20.122xxxx) never updated it. Ironically I have the built-in Ad-blocker enabled, but still they still show (ads).

I can't figure out how to block these specific "interstitial adsense ads". Is there any other way to achieve this on android ?

Edit 1: I tried disabling the data saving features as suggested by Death Mask Salesman, but the problem persists. This leaves me to think the "adsense ads" are hosted on particular websites and not necessarily the server being used by opera mini, but then again the ad block functionality of the browser should be able block these with ease. Shouldn't it?

Edit 2:

I tried using Opera mini beta, to find out if servers were responsible, strangely during my first few weeks of use (around 2 weeks) these " interstitial ads" never came, but only started appearing again recently.

This is a bit confusing as to what could be the cause but I suspect server issues (since during early days of using opera mini beta I never encountered the ads, but perhaps the server was changed to the regular one used by release builds, then the problem resurfaced?

If the latter is true then perhaps the real question is why Opera mini's ad blocker doesn't block self-generated ads?


问:
Reading a QR code from an image instead of a camera
My device does not have a camera, so all those QR code scanners are useless to me.

Is there a way to read a QR code from an image, possibly like an app registering itself as a QR code scanner and it (also) opens image files to scan the QR codes?

I prefer not to use online solutions since those online sites cannot be registered as a scanner.


问:
Partition Reset in Redmi 1S
Running custom Rom on my Redmi 1s, I changed to stock MIUI 9 Rom. Then, I installed latest MIUI 8.2 on it and rooted. I cannot boot into TWRP, so I installed ClockWorkMod, and tried to install custom ROM and failed. I thought it was due to file type issue, and I partitioned Internal storage(followed steps in CWM). Now, the internal storage got reduced to 4.6 GB.

Tasks performed:

Installed stock MIUI 5 using fastboot mode. Then, installed latest MIUI 8.2, shows 4 GB in ES file explorer.

Changed partition table to default mode, using adb shell with parted.

Then, I have increased /system partition to 2GB using parted.

Now running, custom Rom with aroma Gapps.(This custom rom was backed up a month before partitioning internal storage, Restoring this also doesn't solved the issue).

Now, in settings it shows 4.31 gb of 7.28 GB used. Es file explorer shows used 1.65 Gb out of 4.62 GB. Also, I cannot access Internal storage in TWRP recovery.

How to reset it back to 8GB?

Title: Partition Reset in Redmi 1S


问:
Why no native support for phone call blocker by Regex +44.* in Oreo?
There are many privacy problems in phone call blockers such as TrueCaller leaking your phonebook (thread Does TrueCalller App leak your phonebook?) in Android phonebook blockers.
I really think the support should be native.
I would like to understand why it is not at the moment.

There are many threads about the feature in non-native targets by 3rd party apps but none of those threads offer a simple, strong-security and strong-privacy approach for the problem: thread Android app to to block international calls from a particular country.

Example block function: block all UK phone numbers by Regex

+44.* so matching UK country code and any other letter after it

OS: Android Oreo 8.0

Phone: Oneplus 3T


问:
Has Google removed the recent searches browser from the search app for Android?
I remember on the feature detail by this [article] (http://gadgets.ndtv.com/apps/news/google-search-gets-a-new-recent-tab-for-android-1672686) was introduced and enjoyed using it. Now it has disappeared without warning and I want it back. Can I reenable it?


问:
Will engraving the back of my Galaxy S8 interfere with the waterproof-ness?
I am thinking about laser-engraving a large logo on on the back of my Galaxy S8. The image I have in mind is about 40x40mm and will be centered vertically between the SAMSUNG and the lower CE and IMEI markings, and centered horizontally.

Will this in any way break the ability to withstand water, like when I wipe the phone with a wet cloth or when it gets rained on?

I am aware that this will obviously void the warranty, and that there is a risk of breaking the device.


问:
Google Calendar won't sync (Android 7)
I bought my phone originally in China so I installed all the Google Services later.
Now I have some problems left:

When I'm searching for my location on Maps it doesn't really work

But more important for me:

My Google Calendar won't sync (and apparently neither my contacts), look at the screenshot - this was after I pressed sync and everything else synced:

Anyone an idea what I should look at in order to find out why after pressing sync those two didn't sync and what I could do about it?

Title: Google Calendar won't sync (Android 7)


问:
Locked phone connected to the net with blocked SIM
I got my phone stollen today. I contacted my phone company and blocked the SIM card. I tested it by trying to call the phone and was denied.

However, using Whatsapp and K9 (with gmail), I could see that the phone was connected to the net a few hours later. Should I assume that the robber somehow managed to get passed the locking pattern? Or are there any other way to do it?

Note, the phone was only connecting to known WiFi, and not to open one.

Edit: Whatsapp, use tickles to indicate when a message was received. And K9 is a mail client. I could see on my gmail account, that the last IMAP sync (probably automatic) was made hours after the phone was stollen. The combination of those means that somehow the phone was on-line.

I used my phone with my home WLAN. And a few others. But the phone was not actively looking for WiFi to connect to. So it should not automatically connect to an open WiFi.


问:
`adb shell wm overscan` makes apps leave blank spaces on top
I've been following the instructions given here. Basically I just ran:

```<code>adb shell wm overscan 0,320,0,0
</code>```

to fix a broken touchscreen issue on my Sony Z3 Xperia Compact with Android 6.0.1

Now some apps (e.g. Play store, the default Xperia Launcher and Spotify) seem to now reserve additional space where they don't place things. To illustrate my point, I attach a screenshot:

The black top third is what I wanted to have (because that's where the touchscreen doesn't respond). The middle third is what is added which I don't need. I'd rather use this space for the app I'm running, which is now entirely squeezed into the bottom third. As I said, this only applies to some apps.

Edit 1 I found some apps where this sometimes happens and sometimes not. This seems to be related to whether or they are trying to show a menu bar on top.

Edit 2 Gmail and google's Inbox have the same issue. Inbox even crashes.


问:
mtklog folder and how to read logs in it
Ok, so, I have folder called mtklog in which are few folders named like "db.fatal.00.HW_Reboot" inside there are 2 files ZZ_INTERNAL and db.fatal.00.HW_Reboot.dbg it seems like .dbg file is some archive and it have logs in it but when I try to read those logs it asks for password, how figure out what is password? Just to say those .dbg files are created at time when I try to fastboot boot something and it ends up failing so I need to see those logs to figure out what is wrong.</p>


问:
Is BLE 5.0 impemented on Nougat version

Is BLE 5.0 features accessible from Android Nougat phones ? if not how will be the connection of phones with Ble 4.0/ble 4.2 with BLE 5.0 before Android Upgradation ?

Title: Is BLE 5.0 impemented on Nougat version


问:
Android and/or Whatsapp degrading photos
My friend asked me about a problem on her Android phone with Whatsapp.

Phone is Huawei, Y330-U01; Android 4.2.2.
No apps related to Cloud (see comments below) except latest versions of Google Drive and Huawei backup.

People send her pictures and they look fine the first time, but if she tries to open them the second time, they are "blurred" (her words).  She showed me one, and what is happening is that they have been degraded to something like twenty or thirty pixels wide!  Like TV stations do when nudity is on the screen--only far worse, like a whole person three blocks wide!

And videos that play the first time only, the second time cannot play at all.

I suspected some function was degrading them to save storage space, but the internal storage has almost a gigabyte available, and there is an SD card with almost four GB.

She had a lot of updates pending, but neither Whatsapp nor the O.S. were on the list.

What might be the cause and how to fix?


问:
How to keep iptables changes on android after reboot?
If I do any changes to iptables on Android (my phone is running CyanogenMod 11 -
 Android 4.4.3), then these changes are lost after phone reboot.
What should I do to keep them saved?</p>


问:
Samsung galaxy S5 display and touch not working
my samsung galaxy S5 android 6.0.1 not starting. only task manager touch key light keeps always on. but touch not working. and display not working. can anyone suggest me a solution for this issue.

What i have already Tried :

Remove battery and insert it again, but not succeed.

start device by pressing volume down and power key but not succeed.


问:
Searching contacts on Android
On Android v7

click Phone

click the Contacts icon (two human silhouettes)

click [Create new contact]

create new contact

Contact is added and shows up in the list. It also shows in the Google Contacts Web UI on a desktop as well as in Gmail.
However, searching for this contact from the Phone app fails to find it.
The Contacts app is able to find it just fine, just not the Phone app. I installed two other third-party contact searching apps and they find it just fine. It's only the Phone app that has trouble.

Title: Searching contacts on Android


问:
Leaking internal storage
I have a Motorola Moto X Play with 16GB of internal storage and and additional micro SD card (64 GB), formatted as extended internal storage. I am trying to free up the internal storage, so I went through a manual excercise to move Apps to the SD card. However, the internal storage I should have freed is leaked in some way.

In Storage & USB / Internal Storage I have 10.32GB used out of 11.00GB, Apps take 5.54GB, other stuff <50MB. Where is my missing 5GB? How can I recover it?

What I am missing is the ~5GB of internal storage that is not used by Apps and not attributed to anything on Storage & USB / Internal Storage – I'm not speaking of the difference between 16GB (device nominal size) and 11 GB (total internal storage), which certainly is used by other partitions like /system.

The phone is not rooted.

Title: Leaking internal storage


问:
Access raw GPS signal
I have an android phone with GPS. Is there anyway to access the raw GPS signal. I want to export these signals into another platform, say Arduino. The interface between these two would be bluetooth, WiFi, wire, or any other method which would be available. The reason for this is that the GPS signal of the phone is accurate enough for me, rather than spending on GPS units with similar accuracy.
Any idea how to do this?
Thank you. </p>

Title: Access raw GPS signal


问:
Ads appearing throughout the system, apps installing on their own
My grandma has a cheap, 5.1-based Android phone, manufactured by a company named Manta (don't think it's available anywhere outside of Poland, just think your generic cheapest phone company) and has been having problems with ads appearing on the phone and apps installing on their own.

It first happened around a month and a half ago. When you browsed the phone, ads of various apps started appearing - sometimes small banners on the bottom of the screen, sometimes full-screen sized popups overlaying everything. They appeared regardless of the place - on the home screen, on Google Now, over the app drawer, over Chrome, what have you. Also, the phone would sometimes just randomly buzz out of thin air. I tried to clean the phone, used all the highest rated malware killers on the play store, pinpointed that an app disguised as "System upgrade" was an offender - however, all of this to no avail. Despite the malware finders finding some things and allegedly removing them, despite me removing the "System upgrade" (which, as it turns out, was not the only offender), after not longer than an hour, ads started appearing again, various apps started installing on their own without permission and so on. What's worst, the phone started also sending premium SMS'es which upped the bill quite a bit (thankfully we managed to get a refund from the carrier).

So I wiped the phone. Set everything back up again. Everything was cool for a few weeks when suddenly, yesterday grandma told me the same thing started happening. I took the phone home, checked and yep, it did - ads appear throughout the system again, one app installed on its own, I constantly get alerts from the system reading "Installation blocked: This app is fake. It can damage your device and steal your data" that regard my good ole' friend "System upgrade" (well at least this time the system blocked the installation). The phone randomly buzzes again. And on top of that, I randomly get the "Do you want to install X" screen with permissions listed as if I just downloaded something from the play store, though about apps that I (or grandma, for that matter) never downloaded, like PayPal or some supermarket's apps.

How can I fix this? Why does it even keep happening, despite me having wiped the system? I don't really feel like wiping it again without understanding the reasoning would be of much sense right now since it failed me once already. Grandma isn't a heavy user with tons of apps, she only has the ones that came preinstalled on the phone and uses maybe 3 of them (SMS, dialer, Chrome). She's not the type to click anything that pops up mindlessly either, always reads everything carefully and doesn't fall for all the "Your phone has a virus, clean now"/"You won an iPhone" advert crap. I also checked the browsing history to see if she didn't accidentally go to a shady website but not at all - only the news, wikipedia and google searches are there. She doesn't install any apps on her own. The only app we ever installed from outside of what came pre-packaged was the Digital Clock Xperia Widget, which has tens of millions of downloads and an above 4 average so it doesn't seem like it would be a malware gateway.

How can I try to tackle this?


问:
Factory reset has frozen
My phone has recently given up and freezes on the Samsung logo screen. Having tried all the soft reset options I knew of, I have decided to wipe the data/ factory reset.

The steps followed are outlined here but should be pretty similar for most Samsung Android phones.

I have initiated the reset process, but now my phone has frozen on that too. My screen displays

```<code>-- Applying Multi-CSC --

-- Wiping data...
Formatting /data...
</code>```

And what appears to be a fully-loaded progress bar (just a guess) - but that's it.

Any idea where I should go from here, as the phone's beginning to overheat so I may have to remove the battery again!

Specs: SAMSUNG S5830i Galaxy Ace

No SD card or SIM in at the moment

Title: Factory reset has frozen


问:
How to bypass FRP on Google Pixel(1st Gen)?
First, It's not a duplicate post. I have already tried the methods written for different phones like this generic one but it's for LG and Samsung phones.

Also, I have watched this video but "Maps" is not shown as an option along with cut and copy.

Please help me get this phone to work.


问:
Why does my apps disappear randomly after a reboot?
Sometimes when I reboot my LG G3 (about every other time I do that) some apps show up in the main screen with the default Android icon and the app name underneath, but when I tap to open the app it says "Application not instaled". When I look for the app in the app list it does not show up there.

This problem usually happens to Google Sheets, Google Slides, Google Translate, Google Photos or Google Maps. Less comonly also happens to other apps too, but the mentioned ones are responsible by the vast majority of the "app abduction" phenomena. It does not happen necessarily with all of them at same time, sometimes one or two, sometimes 6 or 7, being the mentioned ones the usual victims.

I saw some people who reported this problem in other LG devices when the apps are moved to the SD card, but I don't use any SD card on my phone.

I'm afraid that my SSD is dying. The problem with other people pointed to Android having difficulty to read the app from the external SD card. Since in my case the apps are installed in the SSD, so it may be failing intermittently. The phone sometimes freezes and reboots itself from time to time too.


问:
Help unbricking my nexus 5
let me tell a story first, i want to flash new boot.img for my nexus 5, but i'm also curious what happen if i do re-partition. I delete boot partition ./parted /dev/block/mmcblk0 rm 19 (my boot is 19) then restart it without reformat or even making the partition. Now my nexus 5 can't boot into system or recovery but can boot to bootloader. Search here there, no answers until i have an idea, flash the stock ROM, since it's ok in bootloader i think it is fine if i flash my phone with stock ROM via fastboot, then i do it. After the CMD show results finish flashing bootloader and then restart bootloader, now my nexus 5 won't turn on like no power at all.

Please help this moron, my nexus 5 is the only phone i have and i don't have money if i must buy new phone or even change the nexus 5 board

Title: Help unbricking my nexus 5


问:
How to get wget on my non rooted Android device
I installed an app from the Play Store called Material Terminal.
It allows me to enter Linux commands and run them such as: cd, mkdir, touch, etc.

I wonder if it is possible to get the wget command running on my non rooted device running Android 4.4.

If it is, than how?


问:
Moving applications to SD card leaves some data behind

Possible Duplicate:

  Should apps take up any internal storage when installed to SD?

I have a Samsung Galaxy Ace. I have recently rooted my phone and now I can move the apps to the SD card, however it does not seem to work the way I expected. When I move the app to the sd card, some footprint of the app still remain on the internal memory. For example, recently I downloaded an app which took up 5MB of storage space. After moving it to the SD card, it still appears to use 3MB of space on my internal storage. Is it possible to move the app completely to the SD card?


问:
How do I check who is connecting to my hotspot?
Is there any way to check who is connecting to my hotspot? I am using a rooted Samsung Galaxy SII.

I use the SII's tethering feature in: Settings > Wireless and network > Tethering and portable hotspot > Portable Wi-Fi hotspot settings > Portable Wi-Fi hotspot to create my hotspot.


问:
Change video timestamp on non-rooted device?
I thought I'd be clever and compress some old video files taken with my phone camera using the Video Dieter 2 app. It worked fine, except the new files have new (random) names and their modified timestamps are set for todays date. Result - they all appear to be shot today when browsing the gallery app.

I need some way to either set the file modified timestamps to the correct dates, or set some type of metadata date on the video files.

The phone in question is a Huawei GR5 (Honor 6x) running Android 7.0.

I have tried using Total Commander but it says it can't modify the files, even when I copy them to the internal phone memory. I also tried using the ADB shell to touch -c -m -t the files, but I get a touch: bad '201708211200': Value too large for defined data type error. Possibly because my phone is not rooted.

I also tried copying them to my Macbook (using Android File Transfer) and altering their timestamps there, but of course they revert to todays date when transferring them back.

Is there a way to set the date (either the file modified timestamp or a metadata field) for video files? There are a lot of apps that can modify EXIF data for photos, but it seems to be near impossible to do this for video files without a rooted device...

The last resort I can think of is to take out the SD card and put it in my laptop (Mac) and directly alter the files, but I'm a bit cautious about doing that since the last time I did it (like 7 years ago on a Windows machine and a Nexus One phone) the phone could no longer find most of the files on the SD card afterwards... but perhaps this is a 100% safe operation nowadays?