问:
How to block/disable Snapchat's in-app web browser?
In snapchat, if you type into a chat a website URL you can then access snapchat's browser. For personal reasons, I've taken the time to remove my phones browser via rooting so that I can't access the web. However, I really enjoy snapchat and don't want to have the temptation of using the internet at any point via snapchat.

I can't find any settings to block it. The only way I can think of blocking websites is via the hosts file, but it only works for individual sites; I want to have no access whatsoever via the snapchat browser.

Any suggestions on how to do this?


问:
Builtin Ice Cream Sandwich Application keyboard shortcuts question
In previous versions of android, you could specify application keyboard shortcuts (for example, Menu+G to launch GMail, etc.) but that functionality seems to be gone from Ice Cream Sandwich.

However, there are a few that seem to be builtin, but I can't seem to customize them. They seem to be control+b for browser, control+p for people, and control+a for calculator. (Note that I'm not exactly sure which particular modifier key it is, it's just the one labeled control on my touchpad bluetooth keyboard)

Does anyone know about these or how to customize/change them?

Thanks!

ContentLicense: CC BY-SA 3.0


问:
How To Check What Apps Is Eating My CPU
My device is so laggy so I downloaded CPU - Z to check my CPU

and I see 50 - 70% CPU load

I tried Cache deleting and RAM Cleaning but it's still using a lot of CPU

Are there any Add-ons so I can see which of my apps are Using my CPU?

sorry my grammar, English isn't my first language

Device: Samsung Tab 4

Model: SM-T231

Rooted: Yes

Busybox: Installed

Title: How To Check What Apps Is Eating My CPU


问:
Xbox 360 controller is not working on my Moto E4 Plus
I don't know what happened. My USB OTG cable is working fine and also my Xbox controller on PC. In fact, I have another Android, Sony Xperia Z3 plus. Here it's working just fine. But I don't know what prevent to do so in E4 Plus.
Any ideas </p>


问:
Hidden file on internal storage
I really like to delete some spaces on my internal storage, i checked all the folders on internal, mostly it was 4 GB only, my question is how would i find the remaining 6gb space because my internal storage have a total of 10gb only regardless of 5 gb space for system.

I didnt know how to find it, please do help me to solve this problem.

thanks.

Title: Hidden file on internal storage


问:
Can I install a custom recovery and the Xposed Framework from the recovery in Samsung galaxy C7 pro?
No one can deny that one of the greatest advantage of having a rooted device is having the Xposed Framework running under the hood. But that needs rooting my device. I'm unwilling to do that as it's my dad's new phone and is less than 6 months old. I've recently hypothesized a way to install the framework without rooting the device. But I cannot test it as I mentioned the phone is damn new, so an advice is welcome.

In the android recovery there is an option to apply update from sd card. I think I can flash the image file of the custom recovery TWRP from the recovery. After I'm done and things go the right way I can flash the Xposed installer .zip file from TWRP and then will get Xposed working fine.

Note

The Xposed Framework after installation behaves as a system app and can work fine without root access, it only needs the root access while installation of the .zip file.

It would be a great help if anyone can help me. Please guide me through the process so that I can have the Xposed Framework w/o rooting my phone.


问:
How to get rid of a malware app "Chromes"?
A few days ago I noticed a new app on my phone. It's called Chromes and it has a logo really similar to Chrome's logo.

It was detected as Malware by my antivirus at first, but after a few hours, I got a notification saying it's safe.

I can delete it, but it returns after a few hours. I tried resetting my phone, getting it back on factory settings, but it keeps returning.

What should I do?

ContentLicense: CC BY-SA 4.0


问:
Verizon app on UK Pixel
I have an original Pixel, running Android 8.1.0(OPP5.170921.005), but the update seems to have added the Verizon app. (I'm in/from the UK and use EE.)

I have 2 questions:

Is this expected behaviour?

Can I remove it without rooting my device?

Screenshot of added app:

Title: Verizon app on UK Pixel


问:
How to downgrade Sony Xperia Z1s C6916?
Edit: I got flashtool to work on pc. It seems the device and everything, but the program does not see downloaded firmwares, even if they were downloaded from the software itself.

What I'm trying to do is Downgrade my Xperia from Lollipop to Kitkat. I have looked this up, and this  requires me to use a tool called Flashtool and I don't know how to install the drivers for it, and I don't trust it because I think installing the drivers for my pc and I don't know how to install it in linux.

Because I basically can't install the drivers (im pretty sure I can't turn off driver authentication on my pc) and can't figure out how to install it on linux, I'm at a loss. I'm trying to use a .ftf file.

Does anyone have any pointers? Does this even have to be done with FlashTool? Could I use ADB? I would prefer installing Flashtool with Linux, if I have to use flashTool.

Title: How to downgrade Sony Xperia Z1s C6916?


问:
With the Pixel line, Google has abandoned Android Open Accessory 2.0. What do they use for USB audio now?
I recently got a Moto X4. Unlike my previous phone, the Nexus 5X, this one does not support AOA 2.0, meaning it cannot digitally connect to the Kenwood head unit in my car. Previously, I was able to broadcast sound from my phone to the car stereo, and could use the pause and navigation buttons to control my phone. No more.

I emailed Project Fi about it, and while they couldn't tell me for sure whether the X4 could do this (it can't), they did tell me that the Pixel phones do not support AOA.

So, if Google doesn't support AOA on their phones anymore, is there any new protocol or API to replace it? Has Google given up on USB audio? Or are there USB headphones you can connect directly to the Pixel? For car stereos, is Android Auto support the only way to go from here on out?


问:
Phone on Bluetooth acts as if making a call but no actual mobile call - Bluetooth HFP
Summary

Samsung S8 when connected via bluetooth will randomly open an HFP SCO connection without initiating or receiving a mobile call.

Bug Description - User Story

I listen to music with Bluetooth headphones (Sony SBH60) all through my workday, and my phone will automatically connect to my car's media headkit (Kia Cee'd) when I am driving for handsfree phone calls.

I first noticed the problem just over two weeks ago.

When listening to music with my headphones, I would hear a 'click', the music would become flatter and external sounds would be louder sometimes. At first I thought the music codec used by A2DP was changing. After a while, there would be another click and the music quality would improve again.

When in my car, I listen to the radio but my phone is connected for handsfree (HFP/HSP). I noticed the radio would cut out and the head unit would display:

```<code>Calling...
07564627133
</code>```

However, my phone's display has NO indication of a mobile originated or mobile terminating call. If I hit the 'call hangup' button control on my steering wheel (AVRCP Bluetooth control), the radio comes back on and the  head unit display goes back to the radio station display.

Eventually, I put two and two together. When on my headphones at work I realised that 'click' and strange audio quality is actually mono not stereo.
* I am not sure if the headphone mic becomes active or not.
* I am not sure if the audio is mono because it is now SCO and not ACL A2DP streaming.
When this happens, if I click the 'user action' button on my headphones, it acts like a call hang-up and audio quality is restored.

Again, the phone does not indicate an incoming our outgoing mobile call.

Theory

Some aspect of the HFP Call Setup procedure is occurring on Bluetooth, without a call actually being in place.

Since two different Bluetooth remote devices have exhibited a variant of this HFP behaviour, the issue is with the Samsung S8 gateway not the headset.

Since this behaviour is recent, a recently installed application could be doing this and it may not be the phone or Android that is responsible.

Background

I am an embedded software engineer, I work for Qualcomm on System on Chip Bluetooth Devices and my area of speciality is Bluetooth Profiles above HCI. That's lucky... or suspicious.

To be clear, I know about Bluetooth but I don't know much about Android or Bluetooth on Android (Bluedroid). I have messed around with Android, written some simple apps and I know a little about Android Debug Bridge (ADB).

Yes, it has occurred to me that one of my colleagues has done something to my phone as a prank.

I am posting this to see if anyone else has seen this issue, and as an initial investigation bug report.

Next Steps

Look up the phone number.

Nothing comes up from an internet search

Call the number (UK mobile call).

'The number you have dialled is not recognised'.

Use a Stereo Headset Dev Kit and Frontline Sniffer to get an airtrace.

Enable developer mode, use ADB to get the BTSnoop log from the phone.


问:
Is it possible to link the Shazam Encore app to the online My Shazam account?
It seems like I'm missing something.  My phone has about 20 songs on it and when I logged into My Shazam today I expected them to show up.  Instead I find the following.

The Shazam 'My Account' settings ask for the phone number of the device; which is entered.  No where on the site can I find verifications that tags shouldn't be synced.

Is it just me or is tagged song syncing not available?


问:
Detect which application is playing sound / video
I sometimes have applications that keep playing video and/or sound when in the background. These applications do not always show up in the notification area on my Samsung S8+ - but I guess this is not device related.

Is there anyway of detecting which application it is? Currently I'm having to guess which application to shut down. E.g. the Dutch NOS news app does this: it suddenly replays video after a while with sound. Needless to say, this can be really annoying.

Either programming or Android UI solutions welcome.


问:
Nexus 4 does not seem to boot. What options are there?
I had not used my nexus 4 for a long time. Took it out recently charged it up and when attempting to boot, it just does not start. Some times it turns off at "Optimizing apps" screen and sometimes it won't even go past Google logo.

Tried to boot into recovery mode with power and volume button but no luck. It just shuts down after Google Logo.

Could you please let me know if I could wipe it clean and flash it ?


问:
Script to disable email signatures in default Android email app
We use Airwatch to manage our company phones, and the task was handed to me to make sure the "Sent from..." default was disabled.

Is it possible to create a script that could be pushed out to turn off the Signature option on the default Android email app?

Thanks for any help you can give!


问:
How to play Bluetooth speaker and device speaker at the same time?
I'm on the Moto z and on 7.1.1 nougat. I have the JBL speaker mod and a Bluetooth speaker. But I want to use them both. How do I do that? If I connect to the speaker the mod speaker turns off.</p>


问:
SuperSU not installing on HTC One S
I am trying to root my HTC One S. The bootloader is *** UNLOCKED ***, TWRP is installed, and it's S-ON.

From these instructions:

I downloaded SuperSU-v2.82-201705271822.zip from the TWRP / FlashFire installable ZIP link.

I did adb push SuperSU-v2.82-201705271822.zip /storage/sdcard0/foo

I booted into TWRP and installed the above zip. Apart from complaining that /data could not be mounted (EDIT: fixed this by turning off encryption), it claims to have worked.

I wiped the cache and rebooted.

Nevertheless, if I adb shell and su I get /sbin/sh: su: not found.

There is a /supersu/ directory which contains su and some other stuff, but I can't run /supersu/su: permission denied. The find command finds no other file on the device matching /su$/.

I also tried flashboot boot superboot.img to get Superboot, but if I do this, the device does not boot past the initial splash screen (the one saying "This build is for development purposes only...").

What went wrong?

Title: SuperSU not installing on HTC One S


问:
recover data from samsung galaxy s4
I have samsung galaxy s4 broken touch and display.
 i want to recover data from it such as videos,photos,contacts and whats app chat without pc.</p>

Title: recover data from samsung galaxy s4


问:
Access to android usb port from chroot linux?

Possible Duplicate:

  Android chroot ubuntu - is it possible to get ubuntu to recognise usb devices

IS it possible to communicate over the real USB port of an android host when running linux in chroot?


问:
How to enable Android USB Debugging option without the "Allow USB Debugging" popup?
When we enable USB Debugging, there is automatically a popup that asks whether you want to authorize the PC to access the phone via USB Debugging. How do I enable it without the popup? Is there a command line query using which I can say "no prompt" or something like that?

Here is an image of the popup I am referring to:

Thanks for the help.


问:
Prevent deletion of all data after 10 incorrect unlock attempts
"You've incorrectly attempted to unlock the phone 1 times. After 9 more unsuccessful attempts, this phone will be reset, which will delete all its data."

This is actually worse than just letting the attacker access my data, because now I can't get at it either.

As such, this lockscreen is actually worse than not having a lockscreen.

This phone is a (Tracfone) Alcatel (TCT) A577VL (supposedly a Pixi 5 HD), and it doesn't appear to be rootable easily.

1) How do I get rid of this feature, or replace the lockscreen application, without rooting?

2) The A577VL (Pixi 5?) does not appear to officially exist according to Alcatel; can I root it to fix this more easily?

Screenshot (click image for larger variant)


问:
how can I search for my contacts by only providing the words not start from the beginning?
I am using Android mobile phone. In the Contacts, I find out that it can only search for contacts if I provide the words start from the beginning.

For example, if my friend is called "David". I could not find him if I only put "vid" in the search box.

May I ask how to improve the search algorithm for my mobile phone (I know it is doable for Google Contacts)? Thank you.


问:
Can an encrypted SD Card be recovered?
My hopes aren't very high for this one but here's how my problem goes:

I am using an LG V10. Over the summer, its motherboard decided to die and it was replaced. Therefore the external SD card I used and encrypted on my old motherboard is now inaccessible :/ Is there any way to reach its contents?

If android devs really didn't come up with a way to decrypt an SD card on another device than the one its encrypted on, then there's no point in using encryption at all and maybe even no point in preferring android either..

Thanks for any help in advance

Title: Can an encrypted SD Card be recovered?


问:
How do I automatically delete all my emails on Gmail? (Android)
I recently made a Gmail account and shared it with my dad. I am worried he will ban me from having Gmail if he sees my emails (They are NOT bad)
How to delete emails as soon as I get them?
Please help!</p>


问:
How to fix a Bootloop Nexus 5X that is bootloader locked?
I have a nexus 5x that is boot looping after the android 8 update. My bootloader is locked as I won't be able to install any custom image firmware. My concern is keeping my data in tact, and even if I was able to unlock my bootloader, I'd have to wipe my entire device which is something I dont want to do.

How can I fix my bootlooping Nexus 5x without losing my data?


问:
What does "Answered remotely" mean in the call log?
What does "Answered remotely" mean on incoming calls in the call log? See the screenshot below to see what I'm talking about.

I had never seen this before until recently. Ever since September 30, 2017, every incoming call from my girlfriend has had this label. Edit: Almost every incoming call from my girlfriend, and most incoming calls from another friend, both with iPhones on AT&T (I'm on Verizon). Calls before September 30 didn't have it, and calls from other people don't have it. I never see it on outgoing calls either (or missed calls, of course). Edit 2: The previous sentence isn't 100% true, but basically is (see the edit at the bottom).

Does anyone know what could cause this?

Some extra info:

She does forward her old phone number to this one, but 1) this is the number forwarded to, not from, 2) she has been forwarding long before I started seeing this, and 3) these are only incoming calls, so I'm the one doing the answering. So I can't imagine this is relevant. Edit: This can't be relevant, because the other friend doesn't forward at all.

Just to rule it out, I asked her if she might know why it's saying this, if she's somehow calling from her computer or another phone or something, but she said no, she always uses her actual cell phone (an iPhone on AT&T, by the way, and I'm on Verizon).

My thought is maybe it started with some sort of update. I didn't do a system update on that day, but maybe the phone app updated or something. But that still wouldn't explain what it means or why I only see this for her incoming calls.

I found this forum thread where someone is having the same problem, but none of the answers make sense with what's going on. It does make me wonder if it's a Verizon specific thing on Android, but it's definitely not specific to my phone (Moto Z Force Droid).

One last thing worth noting: when I was searching, some people reported seeing "remote call" during the actual phone call. That looks to be unrelated. I don't remember seeing anything like that during the call itself, and the people who have that say it happens on every phone call.

That forum thread was the only other thing I could find about it anywhere, so I can't figure out what's going on.

Edit:

I discovered another friend where it shows "Answered remotely" after he calls me. He also happens to have an iPhone on AT&T. I made corrections above to note this. I don't see this when I get calls from Verizon iPhones, but I'm not sure if it happens with non-iPhones on AT&T (I've had plenty of other calls that didn't do it, but I'm not sure of the carrier.) Incoming landline calls definitely don't cause it.

Also, I've started noticing occasional incoming calls from my girlfriend (the person in the screenshot) that aren't answered remotely. But the vast majority still are.

Edit 2:

I'm still trying to get to the bottom of this, without much luck, but I have some new information: I've seen a small handful of calls with my girlfriend (the person in the original screenshot) that have the answered remotely icon under the regular telephone icon. I'm wondering if it's some sort of bug, but I really don't know. I say that because I saw this double-icon on at least one incoming, outgoing, and even a missed call, and it isn't labeled "Answered remotely," just has the icon. Also, this is rare, unlike the regular "Answered remotely," which happens on almost every incoming call from these two people.

Here's screenshots with the double-icon thing (and also more of the regular "Answered remotely"):


问:
What is the use of build.prop.bakforspec and vendor.prop?
I have been editing build.prop without rooting the device(via adb mechanism by temporarily flashing twrp recovery using fastboot).

And whenever an OTA update comes, it resets my buildprop.

If I reflect the same changes in build.prop.bakforspec , will my changes be secure of will they be reset again?

And why are these files there:

build.prop.bakforspec,

default.prop

vendor.prop

power.prop?


问:
Why does "Galaxy Apps" require access to my contacts?
"Galaxy Apps", the package manager for the bloatware pre-installed apps on my Samsung Galaxy A5 (2017), requires access to my contacts. In fact, it plain out refuses to run as long as I don't give it access:

Why does it need them?

(I decided to grant access, since I don't want any security risks due to outdated apps, but I'm still curious.)


问:
How to copy/export default android browser browsing history to android chrome?
how's it going?
I have been using android default browser of galaxy j5 for about 1 year and it doesn't show browsing history beyond like 3 months (only last 3 months or less) and my browsing history is so precious to me.
How can I move/copy all this browsing history to android google chrome, or even desktop chrome.
And after all, what's the best way to save them for good, like in my computer?.
Much appreciated.
So eager to hear a sooner response.</p>


问:
Where did the google dictionary listen button go (on my Samsung Galaxy Phone)?
I use a Samsung Galaxy E7 mobile phone with the latest Google Chrome web browser installed. My android operating system version also up to date. Since yesterday, I experienced that the 'listen' button (marked on the snap-shot) has gone from Google dictionary results. Here is a snapshot showing the missing icon which I captured from another mobile phone today.

Please suggest me a solution to get it back. It is really important to me as a student who learns English as the second language.

OwnerDisplayName: Kushan Randima


问:
Adopting SD card for Samsung S5 mini duos G800-H
Has anyone managed to adopt the SD card for S5 mini duos. I've rooted it and tried to install ASPlugin (from RE) but it doesn't install either with CWR or TWPR. Also tried to partition the SD card (Samsung 64G) but the phone sees it as corrupted.

Model: SM-G800H
Android: 6.0.1
Build: MMB29M.G800HXXU1CPK1

Also I have tried all the steps here How to adopt SD card as internal storage on Samsung devices?

But no success so the question is has anyone managed to get it working specifically for S5 mini duos, is there something more restrictive about this version? The post above does mention in a comment that someone might have got it working for S5 (mini duos?). Would be wonderful to know how, what exact steps.

This is after rooting the phone. Did they manage to get ASPlugin to work if so how exactly.

Any thoughts much appreciated.


问:
"Verification failed" upon startup after installing software update
My phone installed a software update and upon restarting, I get a 'verification failed' error message. It continues "Unable to restart you device. The integrity  verification has failed. You need to reset your device to factory default settings. This will erase all your data."

The only option it gives is to 'reset device' - I do not want to do this and lose all my data!

I tried powering off and restarting in safe mode, but to no avail. How can the update be so flakey!? At the expense of all my data...?

I loaded the recovery screen and wiped the cache. But still no result.

Thank you in advance.


问:
How to remove pattern lock without data loss?
I have intex aqua super mobile with android 5.1 os.
I aslo try google recovery find my device method but that not working.
How to recover pattern lock without data loss?
Device is not rooted.
Developer mode is disabled.


问:
Does turning "Background Data" off for an app apply to music?
I'm trying to limit the chance of me accidentally using mobile data when I don't want to, and one of my techniques was going to be turning off the "Background data" option for most of my third party apps by individually toggling the setting under System > Apps & notifications > {app}. However, while testing this toggle, I noticed that it appeared as if Spotify was still downloading and playing music while my screen was off.

At first I thought maybe it was playing some cached music, so I decided to force stop the app to clear all memory usage, turn off my cell data and wifi, record the amount of background data the OS claimed it had currently used (25.00 MB), attempt to launch the app an play a song, background the app (bring up the home screen), and hit play on my headphones.

As I expected, Spotify didn't play anything when I relaunched the app w/o any radios on, but when I backgrounded the app and turned mobile data back on, it started playing music.

To make sure I wasn't being tricked by cache again, I checked what the OS recorded for background data and it said 25.92 MB (or, more than before I started - 25.00 MB).

I don't think I've conducted this experiment incorrectly, so is my understanding of the "Background Data" toggle incorrect, does this not apply to music (and third party streaming apps such as Spotify), or is there perhaps something wonky with my mobile device?


问:
How can I use Bluetooth and wired earphones at the same time?
I have a Bluetooth earphone and a wired earphone. I want to use them simultaneously.

Is there an app for that? If not, what can I do about it?


问:
Sony Xperia Z3 - Lollipop - Signal bar disappeared, no SIM would work
I'm experiencing problems with my 2 yo Sony Xperia Z3. Today i've changed the SIM card from polish T-Mobile to Orange (I've been using Orange for alot of time, even this particular SIM, and 1 month ago have unlocked the network to use T-mobile) and now it seems like none of the cards would work.

After turning the mobile on there's no SIM pin typebox and the network stays at NO SIGNAL (grey bars with an X on them)

What I've tried:
- rebooting (changes nothing at all),
- different SIM card (still this same happens),
- turning plane mode on (would make the signal bar disappear totally after trying to turn it off)

Any clues?


问:
Why is the audio category of my files incomplete?
I have recorded some .wav files with my Samsung S7. They are located in a folder of the recoding app.

Unfortunately the audio category of the my files (Samsung) file manager only lists some of them. Those recorded within the last 5 days are missing.

Why and how can I fix this?


问:
How do I bridge Android guest network traffic?
I need a way to direct all traffic from an ARM Android guest to a virtual bridge on the host.

I'm using the Android emulator binaries (built from source) and Android images built from the AOSP repository.

What I have tried:

Starting the emulator with qemu parameters to create a NIC and connect it to a host bridge (my-interface) gives a Segmentation Fault.

```<code>emulator -avd [...] -qemu -net nic -net tap,ifname=my-interface
</code>```

Disabling the adbd service inside the guest did not solve the above.

From what I understand, the system uses the default interface (eth0, which is a default qemu user mode interface) for adb, which might be why I cannot replace it with a TAP interface.

Is there a way I can work around this?


问:
How to pass all throttled data traffic to an unthrottled port and browse internet at full speed
There are multiple TCP/UDP based VPN apps which can provide free internet. I'm no expert in this field but according to what I understand is that these apps can work if you are able to browse at least one website without any internet plan. They pass all the normal internet traffic through that one website so that your operator thinks you are still browsing that one free website.
Can someone throw some light on how this process exactly works and can I use it to make my internet work faster because when I exhaust my data limit still some websites work at full speed.</p>


问:
Why is 180 rotation disabled on android devices?
I managed to get around the limitation using an app (Rotation Lock Adaptive) but meanwhile it still has me stumped as to why you can't use a tablet upside down (I prefer to have usb cable out of way when changing or tethered) any ideas?</p>


问:
Enable OK Google detection when connected to car bluetooth
I have set "OK Google" detection to "in Google app" only. I don't want Google to be listening all the time.

However, I would like "OK Google" detection to work when I'm driving. This means that the phone's bluetooth is connected to the audio receiver in the car.

Is there a way to turn OK google detection when my phone connects to this specific bluetooth device and off again when I disconnect?

If not, is it possible to turn it on when bluetooth is turned on? (I rarely use bluetooth for anything else.)


问:
What's the problem with my battery?
Well some people here have came across this question I posted few days ago. I want to inform them that I had to reflash my phone (and I'll edit the details there as recommended by @Izzy)

Device: Lenovo Vibe C
Android: Lollipop 5.1.1

So now after a reflash I tried to root my phone again by the KingRoot app. It went fine upto 24% when I thought of disconnecting the router which it was connected to. The app showed me that a file could not be downloaded and then as it happens (on this device particularly during rooting, the phone shut down). Usually in such cases I remove the battery and reinsert it and boot the phone to continue with the root procedure but this time it did not happen. I tried twice but failed. It was after that I removed the battery for about 30s that it booted up again. After the boot the battery indicator in status bar was working in a strange manner. It first showed 50% then the next instant dropped to 2%, and remained there for about 1 hour. Then after I plugged the charger it again jumped back to 50%. In spite of this I charged the phone for rest of the evening. When I again started using it some minutes back, it started behaving strangely again. Initially the charge was 88% then it jumped down to 50% then to 69% and so on. Here are some statistical screen shots taken from 3C Toolbox.

This one from the battery section of settings app. See the ups and downs at the end.

And another problem, I see this annoying notification even when my battery is at normal temperature.

My device is 2 years old so there are no issues with the battery itself I think it is the OS files that are causing the disturbance. I think this would be a silly question (as it is not possible) Did this happen due to the kingRoot app? What may be the cause, please help me out.

EDIT

The battery files of the OS, I think these (the current_now and the temp_cool ones) probably have been corrupted in some way. Can they be replaced with files downloaded from the internet(if any). Please help

Title: What's the problem with my battery?


问:
How to add an APN when "Mobile networks" setting is disabled?
I've got an unrooted Samsung Galaxy S5 from T-Mobile running Marshmallow (6.0.1), and am trying to add an APN so as to use the phone with FreedomPop. I've installed the FP SIM card and entered the unlock code. The next step is to add an APN for FP, but when I try to access the relevant settings (Settings→Connections→More networks→Mobile networks), "Mobile networks" is disabled (grey text, tapping has no effect). How can I enable the settings (the preferable route), or, failing that, add an APN in another way? (So far, the other methods I've seen require other steps (e.g. rooting the phone) which have their own roadblocks.)

"Mobile networks" remains disabled after switching back to the T-Mobile SIM card. The phone lists the ICCID for each card when inserted.


问:
adbfs-rootless: "Transport endpoint is not connected"
I was looking for a way to mount my phone in Linux, over USB, and I came across a recommendation to use adbfs. I was able to download the files to a directory and run make, and I created a subdirectory called mnt.

When I run ./adbfs mnt I get the output --*-- exec_command: adb shell "ls".

When I try to navigate to the directory, I get Transport endpoint is not connected.

I know I am connected to the phone because when I run adb shell I can access the phone and navigate through its files.


问:
how can I prevent a factory reset of Samsung android device?
The Samsung android table I got for my kid has a "Guest Account" feature that lets anyone in without a password. Kind of defeating the point of the password feature that keeps a 7 year old kid out at bedtime.

so I ran:

```<code>adb shell settings put global guest_user_enabled 0
</code>```

with a USB cable attached and it worked. Now the guest account is gone. But all the 7 year old has to do is go into setting and do a factory reset and that will go back to

```<code>adb shell settings put global guest_user_enabled 1
</code>```

Right?

How do I win this password war? I'm older. I have to win.

OwnerDisplayName: Andrew Arrow


问:
How hike messenger is auto inviting WhatsApp group users and importing WhatsApp chats?
I recently witnessed hike (beta) auto inviting friends via WhatsApp & importing WhatsApp chats to hike on my friend's non-rooted phone. Till then, I was under the impression that inter app data access on a non-rooted android phone was pretty much non existent unless you explicitly grant them.
Here the only extra thing hike requests is android accessibility permissions (notification & window). How is hike achieving this?

Even the Accessibility Api is quite restrictive & does not allow simulating touch events. And while importing hike shows one view written encrypting data & doesn't even bring up WhatsApp to front to read window content.


问:
Record android screen

Possible Duplicate:

  Android Software or Device to present Application on Screen

  How to plug in an  Android Tablet and show it's screen on PC or Laptop for training session?

  How do I project the screen of my Android phone for a presentation?

  How to capture video stream from Android phone screen and show it on laptop?

I am planning to make a screencast of my phone screen.

I need to know a way to record the screen

Please note that the Screencast & Screencapture app won't work, as I only have an armv6 processor.

Title: Record android screen


问:
Android-x86 power button press does not sleep
I'm running Android-x86 on an intel Apollo Lake tablet. When I press the power button, Android does not go to sleep. Instead, it shows the power menu. This means I cannot put the device to sleep by pressing the button. Also, there is no option to configure Buttons in Settings.

Sleep works if I open a terminal and type

```<code>echo mem > /sys/power/state
</code>```

How do I make a single press of the power button put the device to sleep?


问:
How can I mount or open already dumped mmcblk0?
I have dumped a mmcblk0 by adb command. Busybox already installed on my android.

```<code>adb shell su root busybox cat /dev/block/mmcblk0 > E:\1.bin
</code>```

Now I can not mount this file on windows 10 with default mount option. How can I open it?


问:
What generates btnotification_log.txt?
On my son's Samsung Galaxy S3 smartphone, this file's size frequently rises to 4 or 5GB and I just delete it. Obviously it's just a log file. I want to strike at the root of the issue instead.  </p>

Title: What generates btnotification_log.txt?


问:
Gmail notifications aren't working as expected
Gmail notification doesn't work correctly for me. I think it happened after the latest Gmail application upgrade.

I tried to clear Gmail data and cache, but to no avail.

I get new email notification after I mark read email as unread. It didn't used to happen before.

I have new email notification so I access inbox from android and the notification disappears. Then I get new email notification after I delete the new email from pc.

Any suggestion how to make the notification work the way I want/expect?

I have HTC Desire running cyanogenmod 7.1 with Gmail v2.3.5.2


问:
Android does not resolve local hostname. Computer does
on my debian server I have an apache instance that I access only in local lan.
Suddenly I cannot connect to it anymore from my android 7.1 phone through hostname.
Connecting through local ip works from both computers and android phones.
Connecting through hostname only works from computers (windows) but not from android phones.
Where should I look at?

I don't want to edit the host file because I change often networks.

thank you


问:
My timezone always back to China
I have a Sony xperia c6 ultra.
I'm tring to set my timezone (and date/time) to automatic (via GPS and network).

I can change all this setting and can see the clock on top changing too. but when I left the config screen the time zone come back to China and the clock turn back again to the old time.

When setting all by hand and disabling all automatic settings, I can set the time/date and time zone but again, when left the config screen the time zone come back to China and the time/date still the one I set.

Having the date/time to my country and the time zone to China and disabling all automatic updates I can't use some app like Whatsapp.

Smell like a custom ROM joking me or a virus...
If it is not the original ROM can someone point me to instructions how to
put my phone back to original ?

More info:

```<code>Sony Xperia C6 Ultra
Android 6.0
Kernel 3.4.5-526212
se.infra@SEI-44#1

Build number 23.0.1.A.5.77
Custom Build version
ALPS.L1.MP6.V2_GXQ6580.WEG.L_P69
</code>```

Title: My timezone always back to China


问:
Phone suddenly slow, many apps not working
From one day to the other, my LG magna phone suddenly started stuttering a lot. Several problems are occurring, and all of them had their onset at same time:

Many apps stopped working, and don't even start or are stuck in white-screens when I start them: Google play store, Google Inbox,
Google Calendar, Google Maps, Facebook Lite, 9Gag, Instagram.

Lag on input: when I type, my key touches have some delay in being recognized. For instance, type "Pizza restaurants" on
internet, and the word "Pizza" types normally, but then image
freezes, and suddenly the entire word "restaurants" is recognized.

Apps misbehaving: some other apps do not work properly, which is the case of the Weather app (also by google?) that never lets me
change location - "Unable to show locations".

Phone stuttering: upon watching youtube or other videos, every 10-20 seconds there are like 2-3 seconds frozen video,
followed by a "rushed" catch up of those frozen frames.

Phone became quite slow suddenly.

Google Play Store doesn't open.

I have not installed anything. I have already tried:

Rebooting many times;

Cleaning cache/stored data of Google Play store, Google services, etc. Note that now I cannot clean stored data of Google Play store as the screen becomes white when I press "Manage space".

Cleaning cache of phone by going to Device storage.

Airplane mode.

The only thing left to do is factory reset, but maybe you can give me any suggestions before I resort to it?

Phone became a brick...

Thanks in advance


问:
Apps not showing from other Google account in the Play Store
I had one main Google account on my phone, I installed all of my apps through the play store on that account. I am running HTCs version of Android 7.0

I recently changed to a new Google account (removed the old one and signed into the new one). I look on the play store to update my apps and it gets stuck on looking for updates. It also gets stuck on loading when I tap on installed apps.

How do I get app updates back?

EDIT: All android pre-installed apps are showing up now (chrome, Google, etc.) But apps installed on the other Google account are still not showing.


问:
Make website think you have a different size screen

If you really want a desktop version of a website to load you need it to think you have a desktop size screen.

The resolution of your screen is irrelevant

I've been told that changing the user agent isn't enough.

I've been told asking for desktop version does not work 90% of the
time.

The website measures the actual size of the screen. It does not care about DPI.

So, this  Change the screen size and dpi does not answer this question.

How do you change the screen size in android. Or trick it.
I'm open to any suggestions. I would like a rooted and unrooted method if possible. I don't mind downloading 3rd party applications either to get this to work.

End goal is to get desktop website to load.


问:
Two copies of an app taking space
My old HTC M8 is running very low on space, and I noticed it has 2 copies of several apk installed in /data/app for example com.twitter.android-2 and com.twitter.android-3. All in, this appears to be taking 1Gb.

This phone is rooted, so I can fix it, but is this a bug or just an artifact of the phone being old and having had several OTA updates in its time?

Would I be able to test/fix this without being rooted (except for factory reset).

OS version is 6.0

```<code>com.twitter.android-1:
-rw-r--r--    1 system   system    33495510 Nov 14 20:41 base.apk
drwxr-xr-x    3 system   system        4096 Nov 14 20:41 lib
drwxrwx--x    3 system   install       4096 Nov 14 20:41 oat

com.twitter.android-2:
-rw-r--r--    1 system   system    38637594 Aug 13 08:31 base.apk
drwxr-xr-x    3 system   system        4096 Aug 13 08:31 lib
drwxrwx--x    3 system   install       4096 Aug 13 08:32 oat
</code>```

Title: Two copies of an app taking space


问:
Unable to move files to external SD card on SGS2 XXLP2
Running a rooted Galaxy S2 with ICS XXLP2 official leaked rooted build. I have a 32GB microSD card mounted at /sdcard/external_sd in addition to the 16 GB internal storage. I'm unable to copy files to it now, it says write error or permission error.
I use a terminal emulator to create a file

```<code>touch /sdcard/external_sd/test
</code>```

and this works fine. If I use a file manager (ES File Explorer, which supports browsing / on rooted devices), I can't copy files from internal storage to the external SD card. Also, earlier I used the external card as the camera photo storage location, now I can't do so and the camera defaults to internal storage (which is low on space).

If I do an ls -l of both sdcard and external_sd, I see the difference - sdcard has all files listed as belonging to sdcard_r, while external sd lists them as '1023'.
So is this a leftover UID from a previous ROM install?

I'm scared to do

```<code>chown -R sdcard_r:system /sdcard/external_sd
</code>```

Is that the way to go about it..or is there any other way to fix permissions?


问:
Files not visible on MTP mount, but visible in adb shell
To offload some media files from my phone, I connected it to my (Linux) PC through USB, and set it to file transfer mode (MTP) so that the internal storage gets mounted. I see many files, which I can copy without a problem, but there are also many files that I don't see at all on my PC.

Exploring the file system with "adb shell", there turn out to be many more files in the same file system.

Does anyone know why they don't show up and what I can do about it? The file permissions seem to be the same as those of the visible files.

Thanks.


问:
Is there a way to detect if there is a power management issue with an android phone?

Is there a way to detect if there is a power management issue with an android phone?

I'm rooted on KitKat if that helps.

The phone in question is  a galaxy note 4 if it makes a difference.

The symptoms I have are new batteries purchased for the phone going from 40% to dead in a matter of seconds. Recently the phone refuses to charge more than 70% even on a new battery.  I'm assuming these are signs of some kind of power management failure.

I'm willing to install any suggested apps if that will help to determine the cause.


问:
Automatic do not disturb on second calendar
I've got multiple calendars on my google account, like one for family stuff, one that I use for shared events with my girlfriend, one for uni etc. I tried to set up my devices running android 7.1 and 8.0 to use automatic do-not-disturb rules so that it only activates silent mode while I am at university, but when I try to select the calendar I can only choose between "'s calendar" and "any calendar" (note that I use german android, so the options might not be called exactly this in english). Is there any way to select only my uni "sub-calendar", preferably without using apps like tasker?

Thanks in advance!


问:
Unable to install new virtual keyboard language
After I recently reset my Samsung Galaxy S7 to factory defaults, several perplexing issues have occurred. Most notably, when I try to add an additional language to my Samsung virtual keyboard, the progress bar remains at 0%. This only occurs for certain languages such as Chinese and Safe Mode does not resolve this. How do I resolve this issue?

My path is:
Settings->General Management->Language and Input->Virtual Keyboard->Samsung keyboard->Languages and types->Add input languages.

Device: Samsung Galaxy S7 (Latest update), Developer Options enabled (However no changes were made) , 60 GB SD card and No Services Installed in Accessibility.

Side note: After the factory reset, when the device started up, there was a screen which asked for a password, followed by a padlock icon in a spinning circle. This did not occur before the reset. Does this have anything to do with the issue I am experiencing? ( After doing research, this padlock screen indicates that my phone has encryption protection, however I did not enable this option in settings and I am unable to find it in settings.)

Attempted solutions: Clearing app data.


问:
Is it possible to remove OAT files for unwanted system apps? [rooted locked device]
I have not enough free space on my Moto X, so I want to free up some space in data partition used by system apps bloatware. For example, disabled Slides with uninstalled updates still consumes 31 MB of space (App=Total storage usage, not data). 27 MB of it is OAT file in /data/dalvik-cache folder. I'm trying to delete that file in way that does not trigger its recreation by ART on next boot. But even replacing OAT file with blank file triggers recompilation. And using pm uninstall --user 0 command also didn't help.

And I have no idea, what is remaining 4 MB.

I have rooted, but locked Android 5.1 device (and unable to unlock – AT&T Moto X). Xposed FW installed.

Does exist way to delete permanently these OAT files of unused system apps?
Best thing occurred to me is that I can delete these files by script after every start, but it would mean huge penalization of boot time every boot.

Thanks for response.


问:
Change File Value in CPU Folder
i want to change value in sched_mc_power_savings file, using this code :

```<code>   #!/system/bin/sh
   mount -o remount,rw /
   mount -o remount,rw /system
   busybox echo "4" > /sys/device/system/cpu/sched_mc_power_savings
</code>```

but it not work, and it always give an error like

/etc/init.d/00myfile
: not found

or

can't create /sys/device/system/cpu/sched_mc_power_savings
: no such file or directory

and i though using busybox echo to change the value is enough, so does im doing something wrong ? and how make it works ?

Title: Change File Value in CPU Folder


问:
Dump google authenticator keys
I have a lot of entries in the google authenticator app. Those entries were originally entered by scanning QR-codes. If I lose my phone, those entries are lost, and my experience tells me that some services can not be reset at all without access to 2 step authentication (one service specifically requested a convoluted process with high associated fees in order to verify my identity. I ended up creating a new account - luckily no important data was in the old account)

According to this site (I have not found a better place describing the data needed to generate a QR-code for Google Authenticator), what I need is:

a label (I assume free text)

user (does this need to be the real user linked to my account?)

a key: this is the important part

a url (is this important, or only for documentation purposes?)

My questions are:

how do I dump all that data from my current Google Authenticator installation?

What happens if I enter that data into a new Google Authenticator instance? Will the old stop working? How is this mechanism implemented?

EDIT

I do not want simply to backup the Google Authenticator database so that another instance of Google Authenticator can read it. I do not want the data in any proprietary or binary format.

I want the data in human readable form, ideally as a .txt file, so that I can readily use it for other purposes, be it back it up as I please, enter it in another application (Google Authenticator or any other application), use it manually to generate QR-codes with the service provided above, ...

Title: Dump google authenticator keys


问:
Google Assistant on my phone recognises appointments from multiple calendars, but Google Home does not
If I 'OK Google' into my phone to ask what meetings I have that day, it is able to show me the calendar entries from my work calendar (which is also a Google Calendar, but not my personal account) as I have linked that calendar to my phone.

However, my Google Home is not aware of any events on calendars other than my personal one so will give me a different answer to the question than my phone does.

How can I get Google Home to recognise entries in other linked Google calendars?


问:
Is there a way to list all 4G networks within range?
Does anyone know of a method to obtain a list of all 4G networks within range at the current location?

Currently running Android 7.1 on an HTC U11 if relevant.


问:
How to port forward UDP in local area network over wifi sharing/tether
This is an offline situation.

The phone is already capable of tethering without an internet connection

I'm trying to setup a multiplayer game using an android phone as the router. It requires port forwarding with UDP.

How can this be accomplished?


问:
Google Home app not letting me teach it my voice
Whenever I try to setup my voice when prompted in the app it just gets stuck on the subsequent please wait screen

  .

This is on a Samsung S8.

Tried clearing the data on the app, restarting the phone, reinstalling the app. Nothing makes a difference.

I've been able to complete this step on my wife's phone for her account, so it doesn't seem to be a network issue.

Any ideas what's stopping it progressing through this voice learning?


问:
Application Installation Error in Genymotion emulator
I am trying to run an application which I am developing currently in Android Studio 3.0 using Genymotion emulator with Android 5.0 - API 21 (Kernel version 4.4.10). All set up on Linux (Fedora 26).

I am not able to run the application.

There is no compilation error in application code as it builds successfully. But when I press run button, first I get this

However, neither the application is not installed on the Genymotion emulator as I can't find it there nor it is installing again. Although when I press OK button shown in above image, I get the following error in Run console, which appears by clicking the button in bottom left of status bar

```<code>11/18 22:29:34: Launching app
$ adb install-multiple -r -t /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_4.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_5.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_9.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_8.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_7.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_3.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/dep/dependencies.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_6.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_0.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_1.apk /home/vpn/Projects/android/candy-coded/app/build/intermediates/split-apk/debug/slices/slice_2.apk /home/vpn/Projects/android/candy-coded/app/build/outputs/apk/debug/app-debug.apk
$ adb shell pm uninstall com.example.vpn.candycoded
DELETE_FAILED_INTERNAL_ERROR
Error while Installing APKs
</code>```

And when I try to perform install command (as shown in above code snippet) using Linux terminal, it shows following

```<code>Failed to create session
WARNING: linker: libhoudini.so has text relocations. This is wasting memory and prevents security hardening. Please fix.
Success: created install session [726755356]
</code>```

This is a new type of error I am facing since I installed the latest version of Android Studio.

It works fine when I run it using my phone Moto E4 plus which has Android 7.1.1.
The project which I am developing was created using the current Android Studio.

Here is my app.gradle just in case

```<code>apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.1"
    defaultConfig {
        applicationId "com.example.vpn.candycoded"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
 }

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:27.+'
    testCompile 'junit:junit:4.12'
}
</code>```

Please help me with this.

Also please comment if anything I am missing in describing the problem properly, or any file or screenshot I need to include.


问:
Why does every adb command take several minutes?
I've run adb devices and adb push some-stuff /sdcard, and both commands take several minutes. Once adb push gets started though, it races through the file, so the throughput is fine. It just takes an extremely long time to get started on processing the command.

```<code>$ adb --version
Android Debug Bridge version 1.0.39
Revision 8.0.0_r17
$ uname --kernel-name --kernel-release --kernel-version --machine --processor --hardware-platform --operating-system
Linux 4.13.12-1-ARCH #1 SMP PREEMPT Wed Nov 8 11:54:06 CET 2017 x86_64 unknown unknown GNU/Linux
</code>```

The phone is a Samsung SM-A300FU (aka. A3) running a recent LineageOS.


问:
Dark spots suddenly appear on the screen then phone reboots. Bug or virus?
I have been experiencing this problem since I bought this phone, which is an Infinix HOT 4 Lite. I thought it was a virus because I installed a lot of applications then, so I did a Factory Reset. The problem was persistent. The following happens to the screen first:

Then it stops responding, until it reboots again. I noticed that this happens when I turn on the screen, but not always. OS version is Marshmallow (Android 6.0), and it is not rooted. I searched Google a bit but I couldn't find anything related to this case.


问:
How to downgrade Firefox without losing my settings
Firefox just got upgraded to version 57. Unfortunately this version breaks compatibility with an add-on that I rely on. Until support for add-ons improves, I want to stick with a version that works.

It's too late to block the upgrade, now I need to downgrade. I have an APK of the old version, downloaded from apkmirror (though I would prefer an official source of I could find one). But how do I install it without losing my settings?

After some fumbling with methods that rejected downgrades, I found a way:

```<code>adb install -r -d org.mozilla.firefox_56.*.apk
</code>```

This did downgrade, but then Firefox systematically crashed on startup.

I guess it's too late for me --- I uninstalled and reinstalled, leaving I had to reinstall my add-ons, bookmarks, saved passwords, etc. But I'm sure I'm not the only one who got bien or is about to get bitten by the Quantum update. So how can one downgrade Firefox without losing settings?


问:
Google Play Music can't see WMA files on Pixel 2
On my PC, I have a library of WMA files that I have ripped from CDs using iTunes.

About 6 months ago I got Google's Pixel phone, and wanted to load a bunch of the music onto my phone.  A quick online search told me I should just be able to copy it to the Music folder on my phone.

I did so, and I got a popup telling me it might not play in its current format, and did I want to convert it before copying?  I clicked "Yes", and the music was copied, and showed up in Google Play Music.

Recently I got the Pixel 2, and went through the same steps to copy music to my phone, but after copying it I don't see any of it in Google Play Music.  I installed VLC and it can see/play the music, but it has very limited capabilities as a music player and isn't compatible with the Google Assistant, so I'd really rather use Play Music.

I tried copying an MP3 file onto the phone, and that shows up in Play Music, so it must have something to do with the format.  I'd really rather not have to convert my entire music library en masse to MP3.

I'm running Android Oreo 8.0.0.

I've verified that there is no .nomedia file in the Music folder.

Is there some difference between the Pixel and Pixel 2 that prevents Google Play Music from seeing WMA files on the Pixel 2?

Is there something else I might need to do to be able to play them?

EDIT:

I tried @Abochur's suggestion in the comments of playing a file via the file manager, and it would not play from there, which indicates to me that there is a problem with the file.  I tried re-copying one of the files onto the phone, and again I was asked if I wanted the file to be converted so that it could be played, but again it was not recognized once it was on the phone.

I would still like to know why this method worked on my original Pixel but doesn't seem to work on my Pixel 2, and if there's any way to have my music appear in Google Play Music without mass-converting all of it to a different format.


问:
Fingerprint unlock and password multiple-attempt security
I have noticed that fingerprint unlocking on Android is pretty insecure. If you make 5 failed attempts (which is quite a lot), the phone just disables the scanner for 30 seconds and then re-enables it. I would like to reduce the number of attempts before disabling the scanner, and then set it to require the password before unlocking. Google searches for this have revealed many pages of results of people wanting to make their phones less secure by increasing the number of attempts or disabling the horrific 30 second waiting period, but am I the only one concerned that it is pretty insecure as it is? I don't want to have to disable fingerprint unlock, as I have a very secure password set that would be a bit of a pain to enter every time I unlocked my phone.

Likewise with passwords, the "Automatically wipe after x failed password attempts" option seems to have disappeared from my phone as of the Oreo update, and there is a fixed 30 second waiting period every 5 attempts, which means that with a reasonable pool of guesses, anyone could brute force my password with enough tries.

What can I do to make my phone more secure?


问:
Create Ad-hoc wifi on Android (Samsung galaxy note 3)
I am creating a website using flask (python) to hold pre-downloaded episodes of anime and cartoons to take into school and host between me and my cartoon club. I want to run it on my Samsung galaxy note 3. Python is not a problem but I need to create a private, ad-hoc (I don't want all my data used up) network to run the site on and let my friends connect (also android phones, mostly). My phone is rooted, but theirs aren't. I can run a private hotspot but I don't need the whole internet, (nor the exorbitant costs). Any ways to do this?</p>


问:
Is there a way to see why an App is incompatible with your phone?
Currently trying to install Animal Crossing, and on the store page it blocks me.

Incompatible with your device it says. I check, it needs at least android 4.3, I've got 6.0.1, so I should be good.

But it is incompatible. So is there a way to see what exactly is the trouble making the app unavailable for me? Like a checklist that you should have A, B and C running to be compatible, but you don't have B.

Is there a way to have more information, instead of this generic error message?


问:
How to prevent app A to inform about app B existence?
I've two apps, A & B.
When I start app A, it prompts me with a message:
"Please remove app B to continue!"
How can I prevent app A from reading the installed apps list.
Or is there a way to rename app B to something else?

App A is a taxi app like Ubber.
App B is the Waze.


问:
How to set the end date of a reminder?
How should I utter the comment so it can understand the end date?

The following does not work:

OK Google, remind me to do this every day at 3 for 5 weeks.

Title: How to set the end date of a reminder?


问:
How to prevent an application from getting installed apps
I'm a android user not a developer and just want to know how can I prevent an app e.g. Facebook from getting installed apps list?
Or alternatively hide some apps from installed list in order to fool the Facebook app.</p>


问:
Unable to forget certain Wi-Fi networks
When I activate the Wi-Fi on my Android device, I can see some networks that I never saved, and that cannot be forgotten.

What are those, and how can I forget them?

OwnerDisplayName: Dana Gilliland

Title: Unable to forget certain Wi-Fi networks


问:
Transferring from Samsung to vanilla Android
I am going from a Samsung Galaxy S7 to Nokia 6. The setup downloaded all of my apps, but none of my files, sms and settings. Of course, I wont get the things I got from Samsung, but there are games I have to start all over and other nuisances. How can I get at least almost everything back? </p>


问:
Switched Language from English to Spanish but there are still english menus
I purchased a phone for my Uncle and he doesn't speak English but the default language for the phone was English.

I set the Language & Input to Espanol, the Keyboard and Dictionary to Espanol and Google Now's search language to Espanol and 95% of the phone is now in Spanish.

The 5% left is is driving me nut though and I can't figure out how to reset it.  I thought maybe it was the Cache for Settings so I cleared the Setting App Cache, rebooted and no luck.  I tried to Delete Data for Settings App and that didn't work either.

Here are some images with examples of the mix of Spanish and English:

Its driving me a little nuts.  Any ideas?

Samsung S6 Edge Stock with Android 7.0.

Thanks in advance.


问:
Does any state or settings remain after an app uninstall?
So on my primary phone, a few weeks ago, whenever I opened up instagram it crashed.  I thought my life would be better without it, and I have multiple devices so I uninstalled it.

A few weeks later, I installed it again and it immediately crashed every time.

I did a data integrity spot check of the SD card and it passed (essentially I wrote at different sectors, ran some checksums ... did a few things to convince myself that the storage system wasn't bad) so we can eliminate that.

All the other parts of the phone are "functional". Other apps don't crash and all the hardware seems to be operational.

The only thing that I can conclude is that the uninstall left something sitting around that a subsequent install is trying to use.

I can't do strace, lsof, or gdb on this thing. So here's a few ways to solve this problem, any being acceptable:

Have you seen this before and is there some place you can link me to to learn more about it?

Are there (this is just yes or no, I just thought of this now) ways to step through app-store apks that are running through say android studio, looking at things like open file handles, or the raised exceptions (beyond what adb logcat tells you of course) - or are there ways to generate a core file that can be analyzed out of band?

Is there some other storage subsystem, such as an SQLite3 database somewhere, where such settings often linger, that I can check?

Thanks


问:
Simultaneously connecting USB mouse and VGA monitor?
Is it possible to simultaneously connect a USB mouse and VGA monitor to an Android tablet?

Because of my physical disability, I would like to operate an Android tablet using a standard USB mouse, rather than the usual touch input. At the same time, I would like to mirror the tablet's display onto a standard VGA monitor.  Is this possible on an Android tablet?

From reading a HowToGeek article, it seems that mouse input is possible if I use an adaptor from standard USB to USB OTG.  If I insert a USB hub between the adaptor and mouse, can I also connect a VGA monitor to the tablet using a VGA to USB adaptor?

I've also heard of Chromecast.  Is this needed to mirror the tablet's display onto a VGA monitor?


问:
How to remove persistent ad notification
I'm using an unrooted Android version 4.4.4 on an Alcatel One Touch Plus phone.

Sometimes when I'm online, I would get notifications of ads like the ones on the picture below. I can't seem to remove them by sliding them left or right. I'm also unable to find out what app is causing this by long holding the notification.

The only way I can remove it is by either clicking on it, or by restarting my phone.

How can I remove those ads and find out what app is causing them?

(click image to enlarge)


问:
Location of Whatsapp Web sessions
From a few sources (see below for examples), I learned about the possibility of locating the computers connected via Whatsapp Web and/or desktop apps, by simply tapping the relevant item in the list of connected computers (available from ... > Whatsapp Web); supposedly, doing so should automatically show you the computer's location on Google Maps.
However, that does not seem to work on my phone; whenever I try, I am just asked whether I want to disconnect from that computer. Moreover, all those pages I found seem to be more than one year old.

Do you know whether such a feature exists, and

if so, how to use it (i.e., why doesn't it work on my phone)?

if not, did it exist once and why was it discontinued?

Here are some sources (admittedly not very authoritative ones, and I could not find much better, but I cannot see the point in inventing and spreading such a lie):

a Youtube video

a tech webpage in Italian

Title: Location of Whatsapp Web sessions


问:
Introspecting/monitoring apps to see whether they steal user data
It appears that a number of apps on the market place require a number of 'permissions' such as permission to access the files/photos, text messages, contacts, browser history, etc of the phone, usually only when a very specific subset of this functionality is needed.
This is an obvious privacy concern, and since there does not seem to be a way to protect user data on Android, it is important to identify apps which steal user data (to sell them to advertisers, or maliciously to sell on the black market, etc).

One way to do this would be to monitor the IP traffic generated by an app, but presumably it is common for such apps to use encryption e.g. SSL, in which case we would need to tamper with the certificates on the device to successfully execute MITM, etc. Not sure if it's feasible.

My question- has anyone worked on a framework to either reverse-engineer/introspect the apps (maybe to look for certain API calls which retrieve sensitive data, and observe where that data ends up) or monitor their network traffic, in a way that defeats encryption?

It would be interesting to take a look at a number of high-profile apps and see if they adhere to their 'privacy policy', or if they harvest everyone's data because they can get away with it.

On the other hand, I saw someone mention in another question (How to avoid leaking private data to apps without rooting my phone?) that we can read app source code to audit it for such things. Surely this is not true for all apps? Since not all apps are open source./


问:
Damaged SD card, chkdsk not working
MY SD card is damaged and not formatting. I tried chkdsk fix but its not working, have a look</p>

```
C:\Users\subhn>chkdsk g: /f
The type of the file system is FAT32.
Volume Serial Number is EC22-1DA0
Windows is verifying files and folders...
The \torrent\Bu77y Sch07a4sh1p Ed1t10n.iso entry contains a nonvalid link.
The size of the \torrent\Bu77y Sch07a4sh1p Ed1t10n.iso entry is not valid.
25 percent completed......
C:\Users\subhn>
```

Title: Damaged SD card, chkdsk not working


问:
Get data/backup out of a bootlooping Nexus6P
My phone got stuck in a bootloop since yesterday and now I am trying to get out any data/backup I can. After dozens of tries (most of the times it just reboots when I choose to get into recovery from the bootloader), I managed to get to recovery and get the whole sdcard contents with adb pull. I am now trying to get backups of some, if not all, apps.

I tried adb backup -all -apk -f -backup.ab but since my phone has the TWRP recovery, this doesn't work.

Is it ok if I just get a backup of the data partition? Will I able to restore apps from this partition to a new phone (possibly not a Nexus6P). Do encryption/lock settings have a role in this?

Is it a good idea to try and flash a factory image, so that I have the factory recovery, and try running the same adb command? I am not even sure I will be able to get into recovery again after that.

I am really afraid to anything at this point, before I know that there is a good chance I'll have any success. I can get to the bootloader easily, but trying to get into recovery fails most of the times.


问:
Change the language everywhere
I changed the language of my phone (Samsung J7 2017) from Polish to French. So far so good, but there are many remnants of the language the phone was shipped in. For instance, the footer of new email, youtube suggestions, the news feed and so on are still in Polish.

Is there a way how to change the language of all system settings ? Or do I have to find those settings one by one?

Title: Change the language everywhere


问:
Bypassing certificate pinning with integrity checks on Android 7 (Nougat) or newer
How can I bypass Certificate Pinning, or bypass SSL verification entirely, in an Android app on Android 7 or newer that has a built-in hash 'integrity check' to rule out APK modification?

Here is a rundown of the previous solutions and why they don't work:
 JustTrustMe does not work on Android 7, and Android-SSL-TrustKiller depends on Cydia Substrate, which is only supported on versions 2.3 through 4.3. That leaves SSLUnpinning_Xposed, which also does not work on Android 7.

I'm seeking any solution that works, which could include an Xposed module or other system modification requiring root. However, making such changes to the APK like these wouldn't work because they would trip the hash integrity check.

Any ideas?


问:
Stop navigating to google.com for wifi sign-in?
My device (unrooted samsung s5, latest google chrome browser version) keeps navigating to https://www.google.com to (eventually) access a public wifi's login page. This is problematic of course as the actual wifi "sign-in" page (that I'm supposed to be forwarded to, or the http redirection for it) is obviously not signed by an ssl certificate for www.google.com, so I get the expected ssl error message. </p>

<p>Is there some setting I can change to change the default wifi sign-in address for the android chrome browser? </p>


问:
Why does unlocking bootloader require erasing userdata?
I unlocked the bootloader in my OnePlus 5 right after it was delivered, so there was nothing to erase. Then I flashed TWRP and SuperSU. It comes with DM-Verity (and /data force encrypted). I tried re-locking, but later I have to erase all data again before unlocking bootloader. So the questions are:

Why is it required to erase all data when unlocking bootloader? Even with device encryption on?

Can I avoid the erase?


问:
Why are my apps loading very slowly?
Lately, I've been having with my phone when I try to open some apps. Usually games, they spend a long time sitting on the opening splash screen before eventually starting up properly. This can take up to ten minutes, with no visible progress. Once the game is running, it's perfectly fine. Doesn't run sluggishly or have long waiting/loading times.

My phone is a Moto G4 running Android 7.0. unrooted and with no modifications. This has come up with Animal Crossing Pocket Camp, Monument Valley 2 and Space Team. I tried moving the apps to internal storage, but it didn't seem to make any difference.

Does anyone have any idea of what might be causing this?

Title: Why are my apps loading very slowly?


问:
How to toggle "Magnify with button" quickly, maybe with Tasker?
I often want to use "Magnify with button" (Android 8 > Settings > Accessibility > Magnification).

Unfortunately, it interferes with the keyboard chooser (Settings > System > Languages > Virtual keyboard > Gboard > Advanced > Show app icon), which I use frequently.

So, I want a quick way to toggle "Magnify with button", preferably from the notification area.

My guess — I'm no expert, so I could be wrong — is that I can use an "intent" to toggle the setting. I could do this from Tasker (maybe you know a better way?).

My problem is that despite plenty of searching, I cannot find the intent setting, or indeed any other way to achieve this.

If "Magnify with button" cannot be easily toggled, but "Magnify with triple-tap" can, that would be an acceptable compromise. (I don't want to leave "Magnify with triple-tap" on permanently because it interferes with normal access.)

Are you able to help, please? My phone is not rooted, and rooting isn't an option for me.


问:
How to detect which app is continuously showing "Network Error" toast messages
I want to understand (and report the bug) which app is showing the "Network Error" toast notifications in the middle of the screen each time when I unlock the device. Any tips or ideas?

I'm a JS developer, so can utilise any developer tools if necessary.

Device is stock oneplus 5, Android 7.1.1 if that matters.


问:
Cannot uninstall an application in Samsung Galaxy A5 (2015 edition)
I have developed an application and installed the app by running the code on my device. The problem is, only this application cannot be uninstalled. I have tried both the settings>Application Manager>App>Uninstall and Uninstall by dragging from Home.

Every time I try to uninstall by dragging, it shows package installed has stopped. From Settings, when I click on the application, it shows Settings has stopped and throws me out of the Application manager.

Can anyone tell me, what is the possible cause of it and how can I get rid of that specific application? Or at least, what are the ways to do that?

I have tried adb uninstall "package name" which shows failure [Delete_failed_Internal_Error]

N.B: My phone is not rooted.So better if suggested without rooting.


问:
Cyanogenmod - new apps make bootloop
when I update some application (Telegram, Skype) my Cyanogenmod starts to glitch, Google Play, Trebushet services (when I open the application menu), Settings (when I click on the "Applications" section) stop working.
some applications after installation generally restart the phone. some do infinite loading. Only removal via recovery helps

tried to install CM 12, 13, 14 - everywhere this problem. Everyone works, but I do not have

Ttebushet error (just open empty main screen)

```<code>    property debug.db.uid not set; NOT waiting for gdb.
11-29 23:43:04.671 267 267 I       DEBUG                                        HINT: adb shell setprop debug.db.uid 100000
11-29 23:43:04.671 267 267 I       DEBUG                                        HINT: adb forward tcp:5039 tcp:5039
11-29 23:43:04.776 267 267 I       DEBUG                                        *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
11-29 23:43:04.776 267 267 I       DEBUG                                        Build fingerprint: 'Micromax/Q415/Q415:5.1.1/LMY49G/C577B040:user/release-keys'
11-29 23:43:04.776 267 267 I       DEBUG                                        Revision: '0'
11-29 23:43:04.776 267 267 I       DEBUG                                        ABI: 'arm'
11-29 23:43:04.777 267 267 I       DEBUG                                        pid: 12687, tid: 12706, name: launcher-loader  >>> com.cyanogenmod.trebuchet <<<
11-29 23:43:04.777 267 267 I       DEBUG                                        signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0xdeadbaad
11-29 23:43:04.816 267 267 I       DEBUG                                        Abort message: 'invalid address or address of corrupt block 0x21 passed to dlfree'
11-29 23:43:04.819 267 267 I       DEBUG                                        r0 00000000  r1 b6e55dec  r2 deadbaad  r3 00000000
11-29 23:43:04.822 267 267 I       DEBUG                                        r4 00000021  r5 b6e570d8  r6 a1d14000  r7 00000029
11-29 23:43:04.823 267 267 I       DEBUG                                        r8 a587b36c  r9 a587b42c  sl b6d29232  fp b6d2923b
11-29 23:43:04.824 267 267 I       DEBUG                                        ip 00008000  sp a587b318  lr b6e2717b  pc b6e2717c  cpsr 600d0030
11-29 23:43:04.825 267 267 I       DEBUG
11-29 23:43:04.825 267 267 I       DEBUG                                        backtrace:
11-29 23:43:04.825 267 267 I       DEBUG                                        #00 pc 0002917c  /system/lib/libc.so (dlfree+1239)
11-29 23:43:04.826 267 267 I       DEBUG                                        #01 pc 0000f363  /system/lib/libc.so (free+10)
11-29 23:43:04.827 267 267 I       DEBUG                                        #02 pc 00012ac5  /system/lib/libandroidfw.so (android::ResStringPool::uninit()+38)
11-29 23:43:04.827 267 267 I       DEBUG                                        #03 pc 000137f5  /system/lib/libandroidfw.so (android::ResXMLTree::uninit()+14)
11-29 23:43:04.828 267 267 I       DEBUG                                        #04 pc 00013813  /system/lib/libandroidfw.so (android::ResXMLTree::~ResXMLTree()+4)
11-29 23:43:04.829 267 267 I       DEBUG                                        #05 pc 000104e7  /system/lib/libandroidfw.so (android::AssetManager::getPkgName(char const*)+258)
11-29 23:43:04.829 267 267 I       DEBUG                                        #06 pc 00010549  /system/lib/libandroidfw.so (android::AssetManager::getBasePackageName(unsigned int)+68)
11-29 23:43:04.830 267 267 I       DEBUG                                        #07 pc 0008221f  /system/lib/libandroid_runtime.so
11-29 23:43:04.830 267 267 I       DEBUG                                        #08 pc 0027b38b  /data/dalvik-cache/arm/system@framework@boot.oat
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       <qeglDrvAPI_eglInitialize:379>: EGL 1.4 QUALCOMM build:  (I7b941c52a8)
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       OpenGL ES Shader Compiler Version: E031.25.03.04
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       Build Date: 06/25/15 Thu
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       Local Branch:
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       Remote Branch:
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       Local Patches:
11-29 23:43:05.372 9925 10106 I    Adreno-EGL com.aide.ui                       Reconstruct Branch:
11-29 23:43:05.373 9925 10106 I    OpenGLRenderer com.aide.ui                   Initialized EGL, version 1.4
11-29 23:43:05.662 5642 12736 W    ActivityManager                              Process com.cyanogenmod.trebuchet has crashed too many times: killing!
11-29 23:43:05.662 5642 12736 W    ActivityManager                              Force finishing activity 4 com.cyanogenmod.trebuchet/com.android.launcher3.Launcher
    11-29 23:43:05.663 267 267 I       DEBUG
</code>```

Title: Cyanogenmod - new apps make bootloop


问:
Find out which app sent an intent to open Google Play?
My Android phone (MIUI v9) recently seems to open up Google Play (to a specific app detail page) randomly (a few times a day), which might indicate the presence of some adware.

As I understand, to make this happen, an app has to send an Intent with a URI of market://....  I don't know which app is doing this, and I would like to find out, so I can get rid of it.

Theres an app called Internal Broadcasts Monitor on Google Play that logs Intents, but it doesn't tell me which app sent the Intent.  Also, it does not provide any way to filter the list of Intents, which makes it very difficult to find a specific Intent that only happens a few times a day.

Is there any way to find the sender of an Intent, or any other way from Google Play to tell which app launched it?


问:
EMUI 8.0 Google account contact, gmail, calendar, etc sync not working
Bought a new phone. The Huawei Mate 10 pro.

No I am not using a chinese variant. And I do not have access to HiApp.

Cloud backup was enabled at startup.

Google contacts sync is not working, calendar sync is not working, weirdly though says gmail is not working (exclamation mark beside the title) but the gmail app is pulling mails.

2FA is enabled for my primary account. I thought this might be a problem, so I connected a secondary account as well. Same issues there.

Principally the services which are not syncing are, Calendar, Contacts, Gmail, Play music, google+, Keep.

Please help.


问:
How to get rid of mal
I've been getting pop-up saying 'chromes', 'staticstatus' and one more, I have tried installing all the anti-virus but it still isn't removed completely from the device. Every half an hour it is popping up. It is reoccurring and the anti-virus give the notification saying that it is a Malware.

I do not know what to do. It seems like I got the virus or the Malware attack when I installed some new apps. Especially I doubt on the app voot and there could be a possibility that even the other App might have carried the Malware into my device.

(click screenshots for larger variants)

Title: How to get rid of mal


问:
Bootloop in Yureka - Rescue data?
I have an old YU Yureka piece, and it has gone into a boot loop.

What happens is, CYANOGEN logo comes up in the beginning, and then "Android is starting - Optimizing x/123 apps" comes up. As x reaches 123, the phone reboots again, and the same thing starts all over again.

One thing note worthing is that it's not always x/123. Sometimes it goes till x/9, x/29, x/27, x/120 etc.. It's not in any decreasing/increasing order. I have let this thing run many times, and for many hours (I was hopeful it would just magically show up my home screen after x reached whatever).

But thanks to my hopefulness, Once it so happened that when it was x/9, and x reached 9 and the phone rebooted, it did not do the same thing again but the phone started!! But only until I connected my cable to get all the data, it rebooted again and the boot loop continued from x/123 this time.

Other things you might want to know:

My phone is pattern protected (locked)

It is not rooted

ADB was not set up from the settings

AND I AM CONCERNED ABOUT MY DATA, so no wiping/formatting of Internal SD card!

Oh, and Cyanogen rescue mode has the following options:

Reboot system now

Apply update

Wipe data/factory reset (I want to avoid this)

Wipe cache partition (I have tried this)

Wipe media

Reboot to bootloader

Power [???]

[???] logs

Sorry for [???] as whatever is written there I can't read it due to a screen display problem.

Right now I am just waiting for that magic to happen again, hopefully if the home screen comes up, this time instead of connecting it with cable, I will first remove the lock pattern, and set up ADB. But I have no clue how it happened last time, or how/when will it happen again.

Also I am unable to connect with fast boot, as I guess we need ADB set up for that. Is that right? adb devices does not list my device. I haven't really worked much with fast boot, flashing, etc. But I will be comfortable to follow instructions. All I want is to rescue my data.

Any help is appreciated :)

Title: Bootloop in Yureka - Rescue data?


问:
Adding direct contact to the "Share via" menu
The Share via menu is awesome.

But in more than half of the cases I use the menu to share something with my wife, and the question is not what to "share it via" but who to "share it with".

I simply wish there was a setting where I could predefine a contact from address book and preferred way of "sharing via" per action (email in most of the cases) that will appear in the "share via" menu.

Is there any way to do this?


问:
Google play services keeps crashing
Google play services keeps crashing every 3 to 10 seconds, and everything google related on my tablet won't load. It started this morning when i powered on my tablet. I'm using a Samsung Galaxy TabA 8.0 with Android version 7.1.1. What can I do to be able to use my tablet again? </p>

Title: Google play services keeps crashing


问:
How can I fix small image size issue in Chrome (only Facebook website)?
Firstly I know StackExchange have a similar question. But I'm unable to comment on that question due to low reputation.

Coming to my issue Chrome browser showing images in small sizes since last week. I have tried clearing cache, site settings and also tried clearing all my chrome data from settings-apps menu. I'm using updated Chrome browser (v62.0.3202.84) and my phone model is Moto X Pure (Nougat 7.0 updated)


问:
Is there a way to track mobile data usage without a "billing cycle"?
The stock data manager is so complicated, with its monthly billing cycle. I have a prepaid data plan which doesn't expire. I want to set a data limit, and after that limit is hit, no matter in how many days, it simply stops data until a new limit is set, and then it starts counting from zero again.

Is there a way to achieve this?


问:
How to fix.a keyboard that doesnt show emoji?
What i try : clear cache, data, restart Result still same

What i use : Android Slash Keyboard, Swiftkey, Chrooma, Go, still same.

How can i fix it?


问:
some files do not show up in explorer when mounted via MTP
I have a moto G 5 (reteu, NPPS25.137-72-4) updated to android 7.0

I have a SD card formatted as internal memory/storage inside the phone.

When I mount the phone as MTP on my PC, some files do not show up in the file explorer.

Specifically these files are wigleWifi directory created by wigle app, and ssidLogger.log created by ssidLogger app (not available on Play Store)

This is happening on ubuntu 17.10 or Windows 10 1709. So there is some consistency here in the bug, indicating it might come from the phone ?

I checked the permissions on the files/directory from a terminal android emulator and they have the same permissions as the other files that do show up, like rw-rw---- root.everybody ...

Note: those files have been written after I have attached and formatted my SD card as internal storage. Those files are visible in Solid Explorer on the phone or in the built-in explorer from Settings/Storage.

If I create a test file in Jota editor, it shows up instantly when saved in the file exporer, for example.

Why do those file not show up in a file explorer on a PC ? and how do I make them show up ?


问:
Nexus 5 in boot loop
I will explain the issue in sequence

I was running custom ROM on my Nexus 5.

One day the device was stuck in flying colour dot animation and never came out of that

I went to recovery mode and cleaned the cache but there was no change

I did a complete factory restore.  Nothing got resolved (The USB debugging option got disabled during this :( )

I again tried to go to recovery mode. Suddenly TWRP started asking password for decryption. I don't remember enabling encryption and setting a password. I don't even have a screen lock. I trided "default_password" which didn't help.

I press cancel , which redirected to this screen

I selected install option and went to this screen. There was nothing displayed

I pressed back and selected ADB sideload and selected clean cache, which also failed with these messages

I pressed back again and selected mount option and tried to mount system and firmware which again landed in password screen

ADB and fastboot were not able to identify the device when I connected to PC through USB. I can see this message poping up on Windows

Please suggest a solution for this

Title: Nexus 5 in boot loop


问:
Shortcut key to focus the address bar in Firefox for Android
I'm using a Bluetooth keyboard with my Android tablet with Firefox (57+). I tried Ctrl+L, Alt+D to focus the address bar, but it does not work.

Is there a shortcut (not using "F" Keys) for focusing the address bar? Or addon?


问:
Is it possible to modify the Caller ID shown on my phone?
I live in South Korea and receive a lot of calls from overseas.
One thing that bothers me is that because of the local regulations international caller ID always contain an international prefix as follows.

From wikipedia:

South Korea: 001, 002, 003xx, 005, 006, 007xx, 008

Because of those prefixes reading call logs is quite unintuitive.

Is there a way to replace those prefixes with a plus sign so that I see nicely formatted numbers like +1 (352) 000-1111 instead of 00213520001111?


问:
White navigation bar Vs black
On an amoled display, in theory, shouldn't the navbar be black to reduce burn in?

Then why are apps/phones starting to use white nav bars?

Title: White navigation bar Vs black


问:
Why does Android suggest turning OFF Secure Startup?
I recently enabled Secure Startup on my new phone (LG V20) running on Android 7.0 Nougat. Almost immediately, the "settings suggestions" began notifying me whenever browsing in the settings that this was enabled, seemingly prompting me to turn it off. This confuses me. Having your data encrypted is a VERY GOOD thing, it makes your phone more secure. That's why it's called SECURE Startup! And now another notification is saying that On Body Detection, which keeps my phone unlocked whenever it detects that it is "on me", is NOT enabled, seemingly prompting me to turn it on!

So is Google anti-security/anti-privacy now or something???


问:
Ethernet on Moto E3 with Marshmallow (6.0)
Just got a usb2 to ethernet adaptor. I am trying to connect the Moto E3 on wired ethernet but this is unsuccessful so far.

It does not seem to work like plug and play.

ifconfig does not shows eth0 in the list. (netcfg is not supported by version 6.0.)

I tried the Ethernet USBhost app but it just says Error. ALso tried setting the phone in airplane mode.

Has anyone made this phone working on wired ethernet? What could I check and try?


问:
How to comment and like under my name in Facebook application on my Facebook page using Facebook's Android app?
I am a moderator of a Facebook page. However, I never want to post, comment and like in the name of the page on the page itself (that's other people's role).

On the desktop website, I set to comment and like in my real name by default, but it does not affect the Android application. My comments and likes appear as the page's comments and likes.

Any solution? It's quite annoying that I cannot interact with my page when being on the phone.

OwnerDisplayName: szedjani


问:
Dns fail in Bluetooth tethering?
When I connect my laptop with my phone over Bluetooth tethering,
I do not get internet access, however wifi and usb tethering is working fine?

There is a dns fail, I checked using dig command,

Title: Dns fail in Bluetooth tethering?


问:
Right place to ask? Whatsapp using Android default emoji rather than Whatsapp's own
I use SwiftKey, and have never run into this before. After googling it, Swiftkey's official site says it should use WhatsApp's emojis over Androids, is there a way for me to see what caused the switch and swap it back?</p>


问:
How do I get OK Google to respond to only my voice?
OK Google on my husband's phone (a Galaxy S6 running Nougat) responds to both his voice and mine. We've tried retraining the voice model several times, and activating Trusted Voice under Smart Lock, and neither of those fixed it.

Any help would be appreciated!


问:
Change the region to get Android update first
Android 7 is released on some countries, but not in my country, is there any way to change the region, so I can get the update (without rooting the device)?

I have Samsung J710F mobile phone.

Thanks in advance.


问:
How can I write e-mails in colored (and any size) letters with mail.ru app for Android?

How can I write e-mails in colored (and any size) letters with mail.ru app for Android?

I tried:

I downloaded Microsoft Word app. And I wrote text there with colored letters.Then I copied it.When I paste it to mail.ru, the same thing was happened again. The letters were colorless and shrunk. I know, this is possible in windows operation in PC.

Is there no way to do this on Android?


问:
Can I find my Google Assistant reminders, shop list and remembered info somewhere outside my phone
If I want to add a reminder or change my shopping list I can do it only using Google Assistant on my phone. But it's not always usable.

Can I work with Google Assistant or simply edit such info using a PC?

I tried to install Google Allo but it seems like it uses some different information that isn't shared with my phone (even tho I logged in with the same Google account).


问:
Google Keep, lost notes during upgrade because notes not saved in the cloud, Android backup in Google Drive available?
I would like to know what happened to the option to keep Google Keep notes to Google Drive. I can remember seeing this option on a version of Google Keep on my previous phone that was reset (Android 6), but can't see the option on my new phone (Android 7).

I would like to know what happened to the option, and, since I lost my notes since the app was not working properly, I would like to see where I can find the backup in Google Drive. Anyone know where I can find it?


问:
How to assess what apps or settings are causing high CPU usage from system_server process on Android Nougat?
I am running root Android Nougat on a Nexus 6P. My battery is draining in <3hrs. When I run su -c htop it shows system_server is using >400% CPU. I have now factory reset 3 times and each time this behavior surfaces after 1-2 days of normal usage.

system_server seems to be a generic process not tied to any particular app or setting.

What Linux diagnostic commands can I use to systematically trace which apps or settings are related to this issue. I have tried things like wakelock tracking apps with no luck. I have also tried looking at adb logcat but I am not really sure what to look for.


问:
Xiaomi Mi A1 - easy way to root and get OTA updates
I ordered Mi A1 which is the Android One offering in India at budget price point ( also in 36 countries going by the Wiki)

It is expected to get OTA updates for next two years , which means including Android P.

I would like to root it (looks to be straight forward) and

a) Install Xposed as long as it is on Nougat or if Xposed becomes available in Oreo

b) Continue getting monthly updates with minimal effort of unrooting or hiding root

My reading on XDA and internet shows possible approaches

Systemless root with Flashfire app

Systemless root with Magisk

Hybrid of above with flashing stock ROM with MiFlash  based tool

It's not clear to me and confusing to say the least as to which is the best approach and involves minimal effort and use of PC ( I have Windows XP 32 bit on which I understand MiFlash tool can run and Mint Linux for rooting )

Looking forward to a detailed reply , preferably based on user experience. The device should be with me in a week and I would like to implement the best approach earliest


问:
How to block all wakelock and wakeup events of Google Play Services running Android 4+?
Android 4+. With some apps as betterbatterystats, I identified that many wakelock of Google Play Service is eating my battery when my device is in deep sleep. I already study this phenomena further, with many tests and apps. There is no doubt on the root cause. Now, and I wish to block all wakeup / wakelock events of Google Play Service. How to do this on rooted device ?</p>


问:
Android 7.1.1 Moto Z Force Bluetooth Won't Turn On
I have a Moto Z Force phone on android 7.1.1.

When I tap to turn on bluetooth, it looks like it has been turned on (but doesn't find anything) and if I tap away it shows that it's off.

If I go into advanced settings and hit the "On/Off" slider, it slides over to "On" and then the slider goes dark and becomes non-interactive. The bluetooth is still off and if I go to any other screen (or even shut the screen off on my phone and turn it back on) it goes back to Off.

This happened once before and it seemed to fix itself after an update. Now it's re-broken and no amount of resetting my phone has fixed it. I really don't want to have to do a factory reset.


问:
Possible cause for not sending SMS messages on one of two Moto Gs
I have two Motorolas Moto G:

from the same line (new, purchased in the same place in one month period),

with the same operating system -- now Marshmallow 6.0.1,

using exactly the same GSM provider / GSM network,

used in the same location and thus probably connecting to the same network cell,

connecting to exactly the same WiFi networks (if that matters),

having exactly the same phone configuration,

even having exactly the same set of applications installed.

For past 2-3 months one of these two Motorolas has a constant problem with sending SMSes. I just can't count number of times I saw "Message not sent. Tap to retry" message on one of these Moto Gs, while on the other one I didn't see this message even once so far.

What can be possible source of this problem or what steps can I undertake to try to investigate it?


问:
Delete photos and videos already uploaded by Dropbox Camera Upload
I am using Dropbox Camera Upload on my Android smartphone. I would like to remove files from Android Gallery once they have been uploaded to Dropbox. I don't mind if it happens automatically and immediately or I need to run some app manually now and then. Is it possible, or is there some other way to free up smartphone camera storage when using Dropbox Camera Upload?

Right now I can only do it manually, by comparing Gallery contents with what I see in Dropbox on my desktop computer. It is tedious for hundreds of files, especially for videos (Dropbox and Gallery show different frames in preview, so I need to play every video on smartphone and on computer). Dropbox also changes file names, e.g. for one photo I have now:

Gallery: 20171208_174736.jpg

Dropbox: 2017-12-08 17.47.35.jpg

For videos it's even worse, as one uses the video start time and another the end time.

Any help is appreciated.

OwnerDisplayName: texnic