问:
Device Protection locked me out
I just ordered a new HTC One M9, which arrived today. The ones I previously ordered came preinstalled with Android 5.0, so I just created a new Google Account (tmp<random_number_of_random_numbers>@gmail.com) for upgrading the system to the current 6.0 version. I did not know about the Device Protection Feature, so I did not provide any additional information like a phone number or so. I just checked the system's software version and found it to already be 6.0, so I rebooted and hard resetted the phone via boot loader to have a fresh install of the current version.

Now I wanted to sign in with my real account and got stopped by the following message:

This device was reset. To continue, sign in with a Google Account that was previously synced on this device.

The problem is: I don't remember the mail address I used. I still know the password, but that alone is of no worth, as you might imagine.

Any ideas on what I can do?

Title: Device Protection locked me out


问:
Android-Windows bluetooth linkage
An android device with no internet connection and a Windows PC with ethernet connection. Is there any way to connect the android device to internet using bluetooth connection between that device and PC? </p>

ContentLicense: CC BY-SA 3.0

Title: Android-Windows bluetooth linkage


问:
Battery Percentage Recalculate (Not Calibration Reset)
When I'm busy and don't want to reboot, I put the android phone on charge and pull out the battery and put a charged battery in quickly (without reboot)

But the battery percentage level does not goes up immediately. (Of course,it goes up in 1% steps,whether charging or not)

How do I force the device to read the replacement battery percentage immediately,  without waiting for it to increment in 1% steps?


问:
Volume Up button does not respond while unlocking bootloader
I have an InFocus M260 (MediaTek MT6582 based). It has a locked bootloader and whenever i try to unlock the bootloader, this shows up :

fastboot -i 0x0489 oem unlock

in the device it shows

```<code>press volume up for Yes
press volume down for no
</code>```

I press my volume up button but I get no response...
When I press my volume down button it says

```<code>returning to fastboot in 3s
</code>```

Can anyone help me please!! I am not able to flash custom recoveries to my phone.. :(


问:
.ini file automatically downloaded, malware?
My phone is LG G2 (D802).
My phone downloaded a .ini file which is currently located under Downloads > sav_amd_dir > md.ini. The download happened automatically in the background while I was playing a game (No Limits). It gets weirder; the contents of the .ini file are full of apps names that are in the play store (pastebin).

What could this be for? Ads? And how does a phone download a file automatically without my permission?


问:
How to know the device's microSD card reader specifications?
In my opinion, for clarity and transparency before purchasing a device, it would be necessary that manufacturers clearly indicate on the data sheets of their devices more information about the device specifications:

The type of compatible microSD cards (Ex: SDHC / SDXC / ...)

The type of supported file systems. (FAT32 / exFAT / ...)

The maximum theoretical capacity of supported microSD card (Up to 32GB/ UP to 2TB /...)

The class of the card reader, to know the maximum speed of compatible cards (Classe 10: Min Write Speed: 10 MB/s 25 MB/s....)

How to get this information without relying on manufacturer declarations?


问:
Gmail ask every 20s for SMS permission
Since the last update on my Huawei to Android 6.0, and even after configuring things properly, Gmail is displaying a message every 20 seconds asking for me to activate the sms permission.
The problem is that I already activated it !

How to get rid of these annoying and wrong messages?

Title: Gmail ask every 20s for SMS permission


问:
Stuck into bootloop, adb sideload failing
I got a Nexus 5X, completely stock, no root or unlocked bootloader.

So, yesterday I remember installing a couple of games. A bit later, out of the blue, my phone reboots and I get "Your device is corrupt" message. The phone wouldn't boot past the Google logo and it would restart.

I went into stock recovery mode, made a wipe data and rebooted. Now the corrupt message is gone, but the phone still bootloops. It goes past the google logo, to the animation of the rotating colorful circles. However, after a few seconds the animation stops, I get a few weird lines, and the phone restarts. And this happens over and over.

I went into recovery mode again and tried to adb sideload the OTA. However it either gets stuck around 18%-19% or I get the error failed to read command: no error.

Someone suggested that my EMMC is failing. Is that true? Is there anything else I can try?


问:
How to see which app created shortcuts on my home screen?
I have a Samsung S7, and lately some apps or virus started to create shortcuts to ads on my homescreen that look like app icons. I removed a lot of new apps but the phenomenon sticks. Usually the thug app creates shortcuts during the mid-night when I am asleep. I like to find how exactly which app is doing this. Thanks.</p>


问:
Error 102 chrome
I have a micromax a102 and when ever I try to visit a page which I was able to visit few days ago like Google weblite I get error 102 or connection refused on pretty much every where a few points you should read before helping me

1 yes I have root i using king root

2 I have no proxy and no static IP address

3 I don't use a VPN

4 all other devices work with out a error

5 I don't have any kind of adblock

6 tried to reboot and quick reboot 2 times

7 yes some sites works but not all other websites though they work fine on other devices

8 all used devices are on same WiFi and work fairly well

9 all apps seems to work fairly well

10 checked on chrome and default browser and Firefox

Title: Error 102 chrome


问:
How to change keyboard font?
I have changed the font of my Android jellybean 4.1.2 device. Everything got changed but not my keyboard. It appears same as i was formerly. Is there any way to change the font of keyboard?

Title: How to change keyboard font?


问:
Is it possible to find out what is accessing the Bluetooth service?
Is it possible to find out what is accessing the Bluetooth service?  Right now I have an issue in which my phone will drain after about 8ish hours.  The Battery view is showing Bluetooth as the top battery drainer, and if I turn Bluetooth off my charge lasts much longer.  I figure there is a rogue application that is causing this, but would rather not have to uninstall all of the applications until the problem stops to see which one it is, or go back to factory settings.

Is there an app that can show me this information, or are there other tips you can give to find out why Bluetooth is pulling so much charge on my phone?
Nexus 6
Android 6.0.1
unrooted


问:
Any way to retrieve phone number dialed while in airplane mode?

Possible Duplicate:

  Android - Call log/ history : Retrieve a dialed number when there was no network coverage

I dialed a new phone number while in airplane mode, and the number was not saved. Is there any way to restore this number from any logs or maybe some combination?


问:
Allow screen pinning automatically by bypassing the permission dialog
I have an app that makes use of screen pinning. The problem is that, as of now, it asks for the user's permission before pinning the app. I do not want it do this - I simply want it to pin the screen without having to get confirmation from the user.

We have physical access to each device the app is to be used on. With this in mind, is there a setting or similar I can change that would disable the pinning message so that the app would pin itself without user permission?

If it's relevant, the device is running on Android 5.0 Lollipop.


问:
Is it possible to have the system/kernel reverse x-axis touch input?
I have a galaxy S6 G920F.

I have this problem with my touchscreen. The x-axis input is reversed. When I touch it on the left part it registers the touch on the right etc..

Is there a way to just have the system reverse the input so that it becomes normal again? some edits inside init.d script or some change in the kernel image or something?

I have tried flashing more than one firmware, kernels, roms everything with no luck. Please, is it possible to change how the device interprets touch input in order to reverse input the x-axis?

Thanks for your time.


问:
Rear or Front Facing Camera through EXIF Data?
I am creating an app that separates selfies from picture taken with the rear-facing camera. I am not doing this 'in real-time' so I started looking at the EXIF data.

I have compared the standard EXIF data from a picture taken with the rear camera and another taken with the front camera, and the same fields appear in both files and no big difference jump out.

Is there a flag in the file or something similar in the EXIF data between rear and front pictures that could positively determine which camera took the picture?


问:
Can I replace my device's bootloader to grub?
Basically the title contains everything. I have an old smartphone lying around and I would like to change its bootloader.

How can I know in which partition does it lie?
How can I compile grub on my main machine and install it to my device?

My device implements the Armv7 instruction set.

Note: I do not wish to unlock the stock bootloader, I wish to replace it completely.


问:
Can't connect to wifi again after connecting to mobile network
My Android is 4.4.

Sometimes when I leave home, my phone changes from connecting to my home wifi to connecting to its mobile network.

When I arrive a place with wifi, e.g. an office or back to my home again, my phone sometimes can't connect to wifi, although sometimes it can. When the problem happens,  I refresh the wifi networks detected by my phone, and disable and enable the phone's wifi, but both doesn't solve the problem.

For my phone to connect to wifi again, my solution is to restart Android.

Is there a solution without restarting Android? For example, can I disable and then enable, and restart wifi connection?

Thanks.


问:
Closed circuit app on Android
I'd like to know if there is a way to run an android app on a closed circuit minimalist type of android VM on an android device so that I can have a full control of what the app has access to and when it is allowed to run.

I'm asking this because I have to use the facebook messenger app (the mobile browser version of facebook doesn't allow you to use instant messaging anymore) and this app causes a HUGE power drain, as well as a big privacy issue (that app has access to almost anything on the smartphone)

I know that it is still possible to use the desktop browser version on android but it takes more time to load than the adapted client.

Also if there is another client that I could use to replace messenger while still using their messaging system, that would answer the question.

Thank you in advance

Title: Closed circuit app on Android


问:
Using Hound/Cortana hands-free in the background like "OK Google"
On my Nexus 6P, I can (obviously) say "OK Google" to summon Google's voice assistant hands-free, without unlocking my phone or opening an app. I really want to use this with an alternate voice assistant as well. Is there a way to launch a voice assistant app (like Cortana or Hound) on my phone with a summon command, as I can do while in the app (at least with Hound)? Is there an app that will let me do this, or is there a setting in one of those voice assistant apps that I overlooked that would enable me to launch Cortana/Hound with "Hey Cortana" or "OK Hound" from my lock screen?

I really used to think that there was a setting on Android to change your default voice assistant, but I now can't find anything like that.

Thanks in advance!


问:
How to fix my clock app from running fast?
I recently had an issue with my Samsung Galaxy S5 and sent it back. Verizon sent me a new one, which I presume is a refurbished model.

It seems to work okay except for a fatal flaw: the clock runs fast. Here's the details I've learned about the problem:

It doesn't run steadily fast. It will jump ahead several minutes at a time.

It also affects the timer and stopwatch.

Pinging the network via a text, phone call, or toggling airplane mode, will reset the clock to the correct network time.

In airplane mode, it will just continually increment.

If plugged in and the screen set to stay on, the clock keeps the correct time.

All other clock apps I found just use the same network time variable, so are also therefore incorrect.

Alarms will only sound if the clock actually reports the time for the alarm, but not if it happens to jump past the set alarm time. (I experienced the reverse condition where the same alarm sounded twice, first when the clock was fast by a few minutes, then a few minutes later after a network ping and clock time adjustment.)

I've looked around on various forums and could not find anything useful. I did at least find a clock app, ClockSync, that pings a server for it's time (supposedly an atomic time) not the network, and will give notifications when the stock clock app is incorrect past a threshold. If you have root permissions, you can set ClockSync to correct the Clock app at certain intervals. I'd rather not do that, and I suspect it would just waste battery.

What is causing this issue? How can I fix it?

Additional issues that are likely related to this issue is that text messages and emails originally show in the correct order or under the correct time heading, but after a sync with the network, they get jumbled up. The Calendar app seems to miss alerts occasionally. Pretty much any app that uses the system time is suspect to run incorrectly.


问:
Notification email count instead of content
Subsequent email notifications state the number of unread emails instead of the content of each subsequent email.

I use Outlook for email. The first email will state who it is from and some content. After that, I get 2 unread messages and then 3 unread messages as the notification.

Any way to change this to the actual content of the message so I know which ones to ignore and which to pay attention to?

ContentLicense: CC BY-SA 4.0


问:
Enable asking to send crash report once answered with No
One of my app users had a crash when starting the app. The first time when he was asked "Send Crash Report?", he answered No.

Now it's almost impossible to get to information about the bug, because after new crashes (now every time when he tries to start the app), he isn't asked again whether he want's to send a report.

Is there a way to somehow reset his "No" answer so he gets asked again?

He already tried:

delete cache of the app

force close the app

restart the phone

delete cache of Google Play app

Note: I don't have something like Crashlytics or ACRA in the app. Only plain default reports to Google Play, which worked quite well so far.

User's phone has Android 5.1 installed.


问:
How do you prevent pre-installed (unremoveable) Android tasks/apps from ever starting without rooting your phone?

Possible Duplicate:

  How can I stop applications and services from running?

Some apps are necessary for notifications. For example, without the facebook process, there'd be no facebook notifications. But other apps, like Qik or Samsung MediaHub, don't need to be running be I don't use them at all whatsoever, and i do not receive notifications from them!!!!

How do I stop that? Not just kill apps, but prevent them from ever starting without rooting?


问:
How can I import about 900 SMSs stored in about 50 folders into a phone running Lollipop / 5.1.1 whilst RETAINING the folder structure?
Over the past few months I've successfully migrated from a Nokia 6220 Classic (running S60 3rd Edition software) to my current phone, a Sony Xperia Z, running Android Lollipop (5.1.1).

On the Nokia I have about 900 SMS text messages stored in about 50 folders. The folder structure is only one level deep, i.e. there are no sub folders within folders.

Through much research, trial and error, I was able to use Nokia Suite 3.8.54 to backup all the Nokia's content to my PC (or more precisely my Virtual PC - an emulated Windows XP environment running on my Mac).

I have the all the messages stored in a single ".csv" file (which opens fine in Microsoft Excel) as well as a copy of the database which Nokia Suite stored the messages in (a file called "msg_db.sqlite").

Additionally I was able to use NbuExplorer 3.3.88.40087 to extract the messages as individual ".vmg" files, retaining the folder structure. In other words I have around 50 folders on my Mac, each containing 1 or more messages, each being a ".vmg" file.

I've been able to use an app called VMG Converter:

http://www.animatedoak.com/apps/vmg-converter

to transfer one (or more) messages at a time to the Xperia phone. The paid for version of the app (VMG Converter Unlocker, £1.90) removes the 200 message limit on importing messages.

In theory I could use VMG Converter to import all 900 messages into the Messenger app on the Xperia, but I don't fancy 900 loose messages in my Inbox.

I want to import them whilst retaining the folder structure, but as far as I can make out, Android's default Messenger app & most similar apps don't support folders.

I can't for the life of me see why this is, and how on earth the lack of a directory / folder structure can in any way be seen as an "improvement". Perhaps this is just one more example of the dumbing down of user interfaces for the Facebook generation…

Anyway, most alternatives to the stock Android Messenger app seem to have juvenile features as their selling points (bright colours & so on).

I've only been able to find one app, called SMS Folders:

https://play.google.com/store/apps/details?id=com.sms.organizer

that offers any sort of folder structure, but according to the reviews on the Google Play Store:

It's not possible to delete the default folders ("Work", "Personal", "Friends", "Family", etc).

It's not possible to move messages from one folder to another.

It's not possible to copy text from the messages, or forward the messages.

It's not possible to select more than one message at a time. There's no multiple selection option.

Crucially, it's not possible to move messages once they're in the Messenger app, only copy them.

So, SMS folders doesn't appear to be of much use in its current incarnation.

Does anyone have any idea of how I can import the messages whilst retaining the folder structure?

I also have a few MMS messages I'd like to import (in the form of ".mms" files & accompanying JPEGs & ".smil" files) but I'm happy to import these one at a time after I get the SMS messages imported, and then file them in their folders accordingly.

Many thanks.

Thanks for the reply. I'm having to add this comment to it as a continuation of my original question, as the "Add Comment" option has a pitiful character count limit, and also strips out all my carriage returns for some reason...

"To my knowledge Android SMS apps do not support folders for SMS messages but display and sort the messages in a threaded view based on the phone number of the contact."

Yes that certainly seems to be the way things work, mores the pity!

Even if I was to create Groups, without finding & installing an SMS app that can wrangle the messages based on the groups, then it wouldn't change anything.

"The SMS Folders app seems to be a SMS replacement app (You can only have one active SMS app)."

Yes that seems to be true, and yes my understanding is that you can only have one active SMS app.

"I actively maintain about 5000 SMS and 100 MMS on my phone at any given time."

How on earth do you do this? Is this on a non-smartphone like my old Nokia, or on an Android phone?

Thanks.


问:
Difference between OxygenOS and CyanogenMod 13
Good day!

I've just got OnePlus X phone, E1003 model. It is equipped with OxygenOS. Also for this model CM13 firmware exists.
Please explain what firmware is more suitable. And what is fundamental differences between OxygenOS and CM13.

I understand that OxygenOS v2.2.1 is built on-top of Android v5.1.1 and CM13 is built based on Android 6.x


问:
How can I help my android phone find an mDNS device?
I have a small WiFi gadget (based on an ESP8266), which is programmed to answer mDNS queries on esp.local. It can be discovered without any problems by iOS devices.

However, my phone's android (6.0.1) doesn't allow for this so I'm looking for ways to get this to work. The phone connects to my router's WiFi, so I think I can somehow go from there. I can install a local DNS to help resolve the address (there's an unused Raspberry Pi which could run bind9).

I also found this question which has an answer that indicates that I can change android's preferred DNS to a local one, so this seems to be feasible. I'm not sure if the way of changing the phone's preferred DNS server described there really works, but doing that plus installing a custom local DNS server seems to be the only practical way.


问:
Phone not detects headphones remove
My Huawei Y560-L01 not detects native headphone removing anymore. Icon with headphones remains visible. I think I got another problem related to first one - no ring tone is visible and I getting many missed calls. When I restart phone everything works fine. How to solve problem without restarting phone?</p>

Title: Phone not detects headphones remove


问:
How to permanently turn off reminders?
I have a Huawei P8 Lite phone. The phone isn't rooted. I primarily use Google Calendar, but of course another one, named Calendar (I guess it's Huawei's own) is also installed and has also access to my Google Calendars. I would like to use reminders quite often, but both of the calendars throw them at me when they are due and it's a little bit annoying. I tried to turn it off in the Huawei Calendar, but every now and then when I restart the phone the settings are turned back on to show me the notifications.

Is there a reason Calendar doesn't remember its own settings between resets and is there a way to fix that and make the notifications go away permanently?

Title: How to permanently turn off reminders?


问:
How do you remove locked apps without rooting? With Android SDK?

Possible Duplicate:

  How can I uninstall applications that are locked by phone vendor?

I really don't want to root my phone. It works fine as is, except for having the extra unwated apps.

Can one remove unwanted pre-installed apps on a non-rooted phone?


问:
Custom ROM on a stock S5 with custom kernel?
A couple months back, I have installed a custom kernel on my Samsung S5 with stock Touchwiz. Now I want to flash a custom ROM on this phone and was wondering if I can do it while my kernel is not the one associated to the running stock ROM on my phone? Is it safe to do so or do I have to revert back to stock kernel before doing so?</p>


问:
Can only boot into Recovery Mode on Nexus 9. Is there a way to recover my files before doing a factory reset?
An update broke my Nexus 9 last week, so now when I try to boot it tells me it's corrupted and then shows a "No Command" screen. I assume I'll have to do a factory reset, and if that doesn't work I'll send it into HTC. However, before I do one of those and erase the drive, I'd like to try to copy my AK Notepad files off of it if at all possible.

I can boot into Recovery Mode. I've googled and found that some Droids have a Backup option on this menu, but apparently not the Nexus 9. Also, as it's still under warranty I don't want to root it. Is it possible to get my files back?


问:
Android Gallery is conditionally using .nomedia
Using stock Android 6.0 (Marshmallow), the stock (LG V10) gallery application (version 4.72.6) is including pictures and other files that have a timestamp newer than the .nomedia file timestamp. I have not been able to test this on other devices to see if it is LG specific.

Recreating the .nomedia file will update the timestamp, and hide all older pictures. Also, the folder being index is a hidden one (starts with a '.'), not sure why it is also being indexed in the first place.

There seem to be a lot of topics on this indexing issue, but none associated with the timestamps. It appears this could have been done intentionally, but it is very undesirable since several applications cannot access the microSD card after the Android permissions update.


问:
S6 Text Bubbles
Ever since I got my s6 I have not been able to change the color of my text bubbles. I shut of the enhanced messaging and the settings only have background instead of backgrounds and bubbles. How can I get it to where I can change the text bubbles?</p>

Title: S6 Text Bubbles


问:
SELinux policy loading and enforcement on Android
In the most recent versions of Android, SELinux enforcement is enabled in the kernel and is static, but how can this work before a policy has been loaded? Is the policy embedded in the kernel? If not, does that just mean the kernel always enforces whatever policy is loaded (so no policy means nothing to enforce)? If policy needs to be loaded from userspace, then what prevents the policy from being overwritten? Is there a one-way flag that locks the policy that gets set after the policy file has beeb loaded?</p>


问:
How to prevent notification sounds when I am *using* the phone?
I wish to not hear notification sounds when I am using the phone. When I am reading an e-book, or news article and the notification sound disrupts the process.

I would like to hear the notification sounds when I am away, but only notification icons on the notification bar when I am actively using the phone.

Is there a way to do this?


问:
Contacts showing as "Unknown name" on Samsung Galaxy S6
As per the below image contacts sync'd from online servcies are coming through as "Unknown name"

I have used the contacts sync within "Accounts" using Gmail, Outlook.com and Yahoo but keep getting the same behaviour with the resultant contacts.  What is causing it?

Click image for larger version


问:
All apps close when phone starts and won't stay open when manually activated
Okay, so my dad is completely technology illiterate. He doesn't even understand that you don't click on internet popups. He's got a phone with Android 5.1.1 and he says he downloaded an app called Force Stop. Now when you turn on or unlock the phone, it goes through this big list of apps that its forcing to close including his calling app. You can't make calls cause it closes the app before you can dial the number. I can't figure it out guys. What has he done to this phone and how can I fix it?


问:
where are DNS settings under 4.4.2?
I cannot find where to configure DNS settings for this device:

```<code>Model number:        astar
Processor type:      QuadCore-A33
Android version:     4.4.2
Firmware version:    v2.0
Kernel version:      3.4.39
                     mmy@ubuntu #1
                     Fri Sep 25 14:17:42 CST 2015
Build number:        astar-rt18703-eng 4.4.2 KVT49L 20150925 test-keys
</code>```

Based on a previous question, it seems possible -- I've looked all through settings on wi-fi, ethernet, etc.

Title: where are DNS settings under 4.4.2?


问:
LG G2 wrong battery size report
I get a LG G2 with Android 5.0.2, and when I check the battery it says that the capacity is 1900mAh instead 3000mAh that is the real amount of battery capacity.
I make a little research and found that is a xml configuration file error and in Kitkat didn't happen, but I can't find the solution to this.

Does somebody know how to fix this?

Title: LG G2 wrong battery size report


问:
How can I type a word Google Keyboard 5.0.25 doesn't know without being auto-corrected?
Google Keyboard 5.0.25 has made it inordinately difficult and frequently apparently impossible for me to type words I want to type that it doesn't yet recognise, and I need your help.

Google Keyboard 4 used to have a pretty good auto-correct scheme: it was fairly relaxed and usually did nothing, but if it auto-corrected a word and I didn't want that auto-correction, I could hit backspace and the word would immediately revert to exactly what I typed. Then I went on typing with it learning my new word.

That backspace reversion seems to have gone away in version 5 on my Nexus 6p and is causing me a lot of trouble.

When I type a long word it doesn't recognise, it'll probably auto-correct that word to something I didn't want. If I hit backspace, the word stays that way. So, instead, now I have to backspace further into the word until I reach some compatible beginning portion, and re-type what I wanted, and it won't auto-correct that time.

Many short words are apparently impossible to type out. Let's take my attempt to write Kyon for example: K gets no suggestion; Ky and Kyo would be auto-corrected to My; Kyon in full would be auto-corrected to Lion. Once it auto-corrects to either My or Lion there's nothing left to backspace into (the first portion of the word's gone). Attempts to reposition the cursor or just go K space backspace yon get subjected to the same auto-corrections.

After making that Kyon attempt about ten or fifteen times to figure out how the heck I'm supposed to get it to stick, Google Keyboard eventually started suggesting Lyon instead, which I could work with.

What am I meant to do if I want to type a word exactly as-is without auto-correction? I still want auto-correction on in general — I just want to be able to tell Google Keyboard "no, don't correct this one, thanks", and my old method for doing that isn't working now.

(Specifically the version number is: 5.0.25.122319759-arm64-v8a.)


问:
How to make Snapchat use less battery/network?
I barely use Snapchat, less than 10 text snaps per day, only one or two 300KB pictures, and I almost never watch nor send videos. I never use the rightmost activity (branded content).

Despite this very limited usage, Snapchat consistently wastes a LOT of battery:

Network usage is also way over what it should be. Data usage alone is not high enough to explain the huge battery drain though.

Just staying on a conversation screen (zero activity) drains more power than the outlet can provide. You read this correctly: Even with the phone plugged into the wall, if Snapchat is open the battery level decreases and eventually the phone has to shut down, this happened to me yesterday with a Nexus 5.

Is there anything I can do to prevent Snapchat from using that much power?

Use a firewall to block useless branded content download?

Remove some permissions? (phone is rooted)

I only need conversation with friends, which means I don't mind losing branded content, sponsored stories, etc. I don't care much about my friend's profiles/stories either.

Note: That's despite having enabled Settings > Manage > Travel Mode already:


问:
language is being reset on boot
I have recently purchased a new phone (Laude M8), which is the first Android 5.1 phone I have used, and also the first phone I have used which supports dual SIM cards.

I have only one SIM card inserted, which is from a Lithuanian carrier. When I restart my phone, it boots with the Lithuanian language selected and I have to manually change it back to English every time in Settings -> Language & Input. Disabling the SIM card in the options makes no difference to this behavior, but physically removing the SIM card works to stop it changing the language.

Is there a way to force it to always boot into the English language with this SIM card inserted?

My previous phone, a single-SIM model (LG L70) running Android 4.4 KitKat, did not have this problem with the same SIM card.

I haven't found any setting anywhere in the UI that would control this, including using the search feature inside the Settings menu.

EDIT: I have just discovered that coming out of aeroplane mode also changes the language to Lithuanian.

Title: language is being reset on boot


问:
How to block number that ends with specific digits?
I am receiving quite a few unwanted calls (6 yesterday), although I am blocking the numbers and reporting all of them to Ofcom, I would rather simply not get them.

All of the phone numbers that are calling me end in "114", and this gave me an idea. Is there any way to block numbers that end with specific digits (or regex based)?


问:
How to identify fake call log entries in the Android call log database?
Is there a way to discriminate between real call events and fake call log entries (made using some app) from the call log database in Android?</p>

OwnerDisplayName: Anshuumaan Dwivedi


问:
How to maintain established connections android when changing wireless network
I need to resolve the following problem. I runs my application android conected with my server on cloud, but my established connections disappears when I switch the (Wi-Fi) wireless network.

Why this problem? In notebooks and tablets does not happen.


问:
Android revolution HD boots to bootloader
I just installed Android Revolution HD rom on my HTC One M9, everything went fine but it won't boot, every time I boot the phone it opens the bootloader screen.

I installed the rom using TWRP


问:
Data recovery from android device with broken screen

Situation Summary - I have an Android device with a broken screen, LCD and touch

I have an android phone (BQ Aquaris E4.5 Ubuntu Edition, which I have flashed with the Android firmware for the E4.5 - this is an Android phone, it is not running Ubuntu anymore). I recently broke this phone - the screen does not work, neither the capacitive touch layer of the screen nor the LCD layer of the screen work. However I believe the rest of the hardware to be otherwise impaired.

USB debugging on this phone is not enabled. As I understand it, if I am to recover data from this phone I must enable the USB debugging. I believe this can be done via adb, or perhaps fastboot?

Note: I can use either a ubuntu linux OS or Mac OS X to attempt to recover data from this phone. Currently I have tried installing the Android Studio Software on these 2 computers/OS's and used adb devices to detect my phone, however the device has failed to be detected.

What should I do next to attempt to recover data from this device?

To be perfectly honest I am slightly lost here. I considered buying a usb to hdmi cable, but I have no idea if my device supports this hardware, and even if it did, the capacitive touch layer of the screen is still broken, so I would be unable to control my phone via the screen...

Therefore I think the most sensible option is to try and use adb(?) to enable USB debugging, and then use some other software to copy data from my android device to one of my computers.

I think the best course of action is to ask what are the next steps I should try to recover the photos/videos/documents from my phone? I am fairly familiar with ubuntu/linux, but I'm certainly not an expert with Android!

What are the next steps I should take to attempt to recover data from my phone/enable USB debugging?


问:
Initiate deep linking from browser
I wanted to test deep links on my phone. According to WhatsApp site, tapping whatsapp://send?text=<text> link on browser should launch WhatsApp app. I have the WhatsApp app installed, but when I went to the browser and typed whatsapp://send?text=Hello%20World! (which is a deep link that opens WhatsApp to send a "hello world" message), I get a Google Search instead of opening WhatsApp.

I tried it with the Twitter and FB deep links and I get the same.
I even tried it on an Android emulator, but still the same.

What is wrong? Is there any configuration or permission to be given or what?

PS: my phone has Android 4.1.2 and the emulator has Android 5.0.1.

Title: Initiate deep linking from browser


问:
Android directory mirror / sync-on-file-change over LAN wifi to Windows network
We have an interesting use case for directory mirroring / syncing, but I'm guessing it's not completely unique:

We want to use a barcode scanning app on an android device, and have the scanned results show up 'instantly' on a windows computer on the same wifi network.  All of this is LAN-only, i.e. no internet.

In addition, the wifi and/or the windows network will not always be alive when the barcode scanning happens, so, the android would need to detect when the network (and shared drive, sync server program, etc) comes alive and start syncing / mirroring at that time, without complaining before that time.

The barcode scanning app I'm using is xscanpet (though, open to other suggestions).  It saves new scans, with timestamp and lookup features, to a spreadsheet file after every scan.  However, the user cannot specify the save directory - it's apparently hardcoded to /scanpet (on the android device's root dir).

What would be a workable solution to get that file viewable by the Windows network 'instantly' with as little user intervention and as possible?

The solution would also need to be easily trainable and usable by a wide audience, with little or no requirement for tech-savvy.

Conceptually, are there different options depending on whether you want to "write to a shared drive from the android" versus "read from the android using windows"?

Options I've looked in to so far - along with some conclusions, but, please do point out if any of these conclusions are incorrect:

SMB / shared windows drive:
If I could 'mirror from /scanpet to SMB, once the SMB drive is available' then everything would be good...
PROs: simple; ES File Explorer and other apps can connect to SMB
CONs: scanpet cannot write to anything but /scanpet

ftp server on the android (from ES File Explorer), viewable from any other machine on the network using ftp client / web browser:
PROs: instantly available
CONs: making a shortcut on the windows system to the ftp location (ftp://:/scanpet) is not really useful - windows considers the shortcut to be a plain file, so, it cannot be directly scanned for changes; I looked some at code to get the link target, but it's not clear if that would get the job done; i.e. there wouldn't be any shared-drive benefits to this option; the monitoring program would have to look directly at the ftp directory

other sync apps such as FolderSync or Folder Sync:
PROs: seems to be a full solution for scheduled syncing
CONs: these apps don't seem to provide for actual mirroring / syncing on file change

Tasker app:
I haven't really explored whether there's a solution here?  Maybe integration with FolderSync?


问:
Multiple issues - notification bar, loss of data on calendar
Suddenly my notification bar wont slide down. I get the beeps for the notifications but am unable to see any notifications.

the settings button on the right hand top also has vanished. I have to scroll down to the settings icon to go to settings.

The calendar has suddenly become blank. Lost all data.

The sync function with google is not working.

Could anybody please help?


问:
Why does my Nexus 6P's "Show CPU Usage" option only show com.android.systemui (and system apps)?

It only ever shows com.android.systemui and other system apps. Here I'm loading a complex page:


问:
HTC ONE (M9) - S-OFF sunshine & cyanogenmod
Ok guys i'm in a real problem!

I cannot make or receive phone calls for one week... it all started when I got bored with the original OS of the HTC One M9, so I rooted the phone and installed CM13 following some tutorial on the internet (its the first time I root and install a custom rom in my life).. when I finished, I was verry happy until I discovered that I cannot make or receive calls, I searched for solutions, and I tried them (installing gapps, uninstalling capps, set phone app as default app...) but none of them worked. So I installed slim roms hoping that this can be the solution, but the same problem is stilling. I installed then android revolution HD and the problem disappeared, it was not solved, it disappeared because this rom didn't event boot. I reinstalled cyanogemod in order to use my phone for things in which it stills usable, and decided to return to the stock rom (the boring one). I found a good tutorial, in which he said that in order to successfully install it i have to:

Download the right ruu.

Change the cid and the mid.

For the ruu file I found the zip file for the same version used in the tutorial (1.32.401.8).
Now when I try to change the cid using this command:

```<code>fastboot oem writecid HTC__001
</code>```

It says:

```<code>...
FAILED (remote: unknown command)
finished. total time: 0.006s
</code>```

After googling it, the problem seems to be caused by 'S-ON', so I have to 'S-OFF' the phone. I downloaded sunshine and run it but the app shows an error saying:

SunShine encountered problems with your rom. Please flash a stock, or more near stock rom and try again

I'm really confused.
To install a stock rom i have to change cid.
To change cid i have to S-OFF the phone.
To S-OFF the phone i have to install a stock rom.


问:
Transfer settings from Lollipop to Marshmallow (with EMUI)
I am migrating from a Samsung S6 (Android 6.0.1 Marshmallow) to a Huawei Ascent Mate 8 (Android 6.0 Marshmallow).

On the Huawei Phone, I am not prompted for a Google Login or the option to synchronise data with Tap&Go.

Are these peculiar features of EMUI or is it not possible to use Tap&Go from Android 6.0.1 to Android 6.0?

I am happy to ditch the Huawei EMUI interface if it means a smoother transfer of my account and app settings from the Lollipop phone. I have no data on the Marshmallow phone and I'm happy to do a factory reset if it is required.

I have seen a variety of explanations on line, but many of them are steered toward selling software utilities.

In the past I have found that many core apps such as SMS require the use of additional export / import apps. Others involve copying individual XML files between the phones. I am not expecting that there will be a perfect solution. It would be good if there was a process or product that at least transferred the data, settings and accounts of the 20% of apps that 80% of us use.

What would be the smoothest way to transfer data (SMSes, contacts, photos, emails), accounts (google, email, fb, twitter) and various app settings between these two devices?


问:
Android 6 wlan wifi disconnects always
Got a problem on my Galaxy Tab A since the upgrade to Android 6. The Wlan disconnects and reconn. always. It is not the routers fault or any other but most likely something in the software. Well I started searching through the different settings and changed this:
"More connection settings" - "Nearby device scanning" and set this off. Now it seems to be fixed. I suppose this scanning disturbs the wifi frequencies or sth like this. Any other suggestions?

Thanks,

Hendish

Title: Android 6 wlan wifi disconnects always


问:
Google Cardboard video gets paused automatically
I just bought a new Google Cardboard and downloaded the official Google Cardboard app.

The problem is when I play videos in the Google Cardboard app they are pausing automatically, which is very frustrating.

I tried to play them without putting my phone in the cardboard, but the video still pauses.

I am using the Nexus 5X


问:
Enable Developer Options With Update.zip
Whenever I flash a new ROM I always do the following:

Enable Developer Options

Enable Advanced Reboot Menu

Enable Root access Apps and ADB

Security Install from unknown sources

Is it possible to do these steps using an updater-script within an update.zip?


问:
Is it possible to run an app directly from a USB flash drive (OTG)?
I'm almost giving up on this, can anyone help me?

I have a Samsung Galaxy S6 which means that I can't get an external sd card mounted to my phone. So I bought an OTG flash drive with the hope that I can install or run apps and games from there so my storage problem is solved. But after researching on several forums I'm still getting no answer for this.

Is it possible to run or install apps on a USB flash drive?


问:
Switch sim cards?
Up to about 3 weeks ago, I had a Motorola Moto X running Android 5.1 with Verizon/CDMA . Then I switched to a Nexus 5 running Android 6 with Ting/GSM. The Ting service is terrible it turns out, so I am probably going to switch back to Verizon. I do like the Nexus 5 much better than the Moto X. Can I use the CDMA SIM Card from the Moto X in the Nexus 5 on my switch back to Verizon?</p>

Title: Switch sim cards?


问:
How to remount to rw?
So recently rooted my phone, after a few days all google related apps have stopped working and I get the "no connection error". I have looked at so many different tutorials and what not and nothing seems to help.

Ive tried editing the hosts file with file explorers, etc but it fails to save any changes made and it fails to remount to rw.

Ive also tried using adb. Adb root gives me the error that root cannot run in production builds, thus the following basically fails. Using adb pull and trying to push it back does not work, gives me the error that /system is mounted as ro. adb remount, adb mount, doesnt work gives permission denied error.

Im really out of ideas here, its just frustrating to not be able to use playstore, especially receive emails.

Anyone got any ideas? Do I need to flash a custom rom? I read somewhere thats the only way to change permissions since you have to change the kernel build or something, not entirely sure.

Thanks anyways

Title: How to remount to rw?


问:
max microSD capacity? how is this controlled?
So I'm looking at a cheap android phone ($30) to use as an MP3 player while at the gym. I just saw several from the local carriers (perhaps same phone but rebranded?) and they advertised the phone as having a max of 32GB size for the microSD.

How is the max controlled? is this controlled by the SoC used? or perhaps another chip? I was hoping to use a 64GB one I already have.

Thanks


问:
Multitasking after changing device date
I'm running Android 6.0.1 on a Nexus 6P.

I've been having some trouble with the multitask button, specifically right after changing the device date/time. The multitask button does not work at all, and the home button is sluggish. If I reset to the current time then both begin to work immediately. This behavior does not depend on whether there are other apps open or not.

To reproduce:

Go to Date & Time in Settings.

Uncheck Automatic date & time.

Set date to 2 days before the current time, press "OK".

Attempt to use multitask button, which fails.

Check Automatic date & time.

Multitask button now works!

Anyone else have this problem, or solutions? I'd like to have the multitask button work immediately after changing the date.

Thanks!

EDIT: It worked! I was able to set the date to 2 days prior, and immediate use the multitask button. This only happened once, however, and I can't find a way to reproduce that.

EDIT2: Any ideas?

EDIT3: Multitasking after changing the date seems to work every time when the device is booted in safe mode. So I'm hypothesizing the issue arises from an app I have installed.

Title: Multitasking after changing device date


问:
How To Keep LG Lancet POWERED OFF While Charging
My brand new Verizon LG Lancet that just came in the mail will not stay powered off while on the charger. I want the phone to stay off while charging. How do I fix that?  </p>


问:
Is is enough to do this as to hide data?
I had an optimus vu(sold) and i wanted to encrypt data but found no such option on it. I directly resetted it then started filling it up then resetted (did this process 3 times). Is it enough to make my data before the first reset be hidden or so difficult to reach?</p>


问:
samsung galaxy j1 apps don't work off sd card
just bought a samsung galaxy j1. it has 8GB of memory but when i move my games/apps to the sd card, to free up more space on the phone, i cannot use them. it says this app is not installed. how do i fix this? </p>


问:
I need to Semi permanently disable wifi on my tablet?
Heres the thing i work in a secure industry which recently changed its security policies to not allow for wifi capable devices.  i thought there may be a way to disable the wifi on a tablet in such a way to disable any output from the antenna. im not alien  to using software mods and could be encouraged to learn some new code for this.  the issue on the companies end is not loss of secure info but a worry of viral jamming of the company equipment which must remain online. also id like to be able to bring the wifi capability back but bricking is not completely out of the question but i wasnt sure that would even work with a tablet.  the test at the end of the day will come down when they use a scanner to scan the wifi spectrum.  so if i could technically shift the frequency the antenna is on or drastically lower its power output that would be the best bet im just not sure how to tackle the problem any help would be great.
also im working with a nvidia shield k1 table currently running android 6.0 marshmallow

Thanks


问:
How can I change the homepage in my browser?
This page shows each time i open my browser, how can i change the homepage to something else?

Click image for larger version


问:
Lollipop SAF: how pre-installed file manager is able to write to SD card?
With SAF I am able to write to external SD card with explicit user permission.  BUT I am wondering how pre-installed File Manager app is able to write to any SD card without user permission? Is the WRITE_MEDIA_STORAGE permission making the difference ?

How to gain this type of access ?

I have source code of android for the tablet I have.  Can I add my app to source and compile, so that my app can write to any SD card without explicit user permission?


问:
Error 404 updating Note Edge to 6.0
My Verizon note edge is stock, not rooted or unlocked. I initiated an ota update and it failed. Here is the error.

Title: Error 404 updating Note Edge to 6.0


问:
Fix a soft-bricked Nexus 4 without usb?
My Nexus 4 is soft-bricked, when I turn it on normally it just stays stuck on the "Google" logo.
The device has TWRP recovery v2.8.0 installed, which can be accessed.
The device's USB does not work, I think it's a hardware problem.

Is there any way to fix a phone in this state?
Perhaps send an installable rom zip over Wi-Fi or Bluetooth?
I'd be glad to hear any suggestion.

Title: Fix a soft-bricked Nexus 4 without usb?


问:
How do I extract hidden app data from unrooted Samsung S5 Mini?
I tried this command:

```<code>adb backup -apk -obb -shared -all -system
</code>```

It seems to start but then it stops at about 4 GB (from about 9.5 GB occupied storage - from 11.6 GB initially available). The display of phone shows "shared storage" and there's no further progress since more than one hour. So I don't know how do I get this backup done.

The worst example of app which hides data from me, even though it's my smartphone is built-in Internet Browser. Over time I got 2.9 GB of saved pages which I can't access without root. Now I have no way to access my data and smartphone is nearly useless without sufficient storage.

How do I extract this hidden data? From all apps or at least from this Internet Browser? Thank you very much for your answers!


问:
How to stop apps from doubling overscan?
For some reason a chunk of the digitizer broke on the bottom of my phone. I tried to use adb shell wm overscan 0,54,0,324 to resize my screen smaller until I can get a new phone, but it's giving bad results.

It seems like the overscan is working normally at first, but then some of my apps, including Google's launcher, Nova Launcher, Gmail(except when composing), and the Play Store, are then shrinking in addition to the whole screen shrinking, leading everything to be half the size I want. I could just set the overscan to half of what I want, except that many apps and the keyboard do not do this, meaning I couldn't really type then.

Examples:

Any ideas on what could be causing this or how to fix it?


问:
How to fix poor sound and video quality when pairing YouTube with a television?
I tried pairing the official Android YouTube app (by Google) with a television so I could watch a few videos on something larger.

I was surprised by the poor quality of the audio and video.

The audio sounded somewhat muffled compared to what is normal.  It was distracting enough that it made the experience less than desirable.

The video quality was poor as well.  When we speak of poor video quality we normally speak of low resolution or glitches.  However, the resolution looked adequate and there were no glitches.  Instead, everything seemed washed out, like someone turned the brightness on too high.

Between the poor audio quality and the video issues, I don't feel like this technology is ready for prime time.

Is there any way to fix these issues or make adjustments?


问:
Block heads-up/peeking notifications when certain app is in foreground
Ordinarily I love the peeking notifications in Marshmallow. They're really useful 95% of the time, and save me a lot of pulling down the notification shade.

But when a real-time game is in the foreground, the heads-up notifications block so much of the screen that they affect my ability to play. I have lost competitive events because of this. Enabling Do Not Disturb, oddly, does not prevent peeking; it only disables the vibration, which doesn't affect my gameplay. (It obviously also disables notification sounds, but my phone spends 99.9% of its life in vibration only mode.)

Obviously I could simply disable peeking, but that's not what I want. I want to suppress peeking only when certain apps are in the foreground. Googling for a solution has been fruitless, either because of keyword confusion or because a solution does not exist. I hope it's the former, and I just haven't been able to put the right query in.

Pretty much any solution is usable for me, since I am on rooted 6.0.1 with Xposed installed.


问:
Checking activity of unknown user on my phone
Yesterday I took my new phone to a mobile service shop... I wanted them to put a protection layer on my display. I have a pattern lock on my phone so I just put the display to sleep and gave it to him. He went to another room, and 15 minutes later he gave me the phone back.

My questions are: even though I have a pattern to unlock phone how can I make sure that he did not do anything suspicious to it? He was very strange. Could he have guessed or cracked the code? Is there a way to inject some kind of harmful code via usb cable? How can I check all the activity, not just browser history or history.google.com but all the list of apps that were turned on? Or any other activity that might cause problems to me. Also, is there also anyway to inject some kind of harmfull code to a blocked phone using usb cable? And lets say that code would delete the pattern and gain the access to phone ?

I want to hear from a security expert. Should I do a factory reset would it delete everything that might be inserted by him to the phone ?  just to make sure?

Or am I being paranoid? Thanks


问:
Android won't mount SD card after using link2sd
I'm extremely inexperienced when it comes to using link2sd but my basic understanding before using it was this:

I partition my 16GB SD card to FAT32 (about 12GB) and Ext2(about 4GB), link2sd uses the second partition of Ext2, and the first partition can be used by my phone to store other stuff like videos, photos, etc.

So I partition my SD card using AParted and it is successful. In Link2SD I chose "Recreate mount scripts" and select Ext2 as the "file system of my SD card's second partition". Then I am also able to successfully link my apps to my Ext2 partition in my SD card. However something really weird happens. Android won't mount my SD card so I can't access it and store stuff in it even though Link2SD can!

Is this the way how link2sd works? The other partition of your sd card becomes useless? Or am I doing something wrong.. :/

Thanks in advance!


问:
google play doesn't work on my home wifi but works fine on every other wifi
I bought a new phone yesterday and i've had this problem since i got it. the phone works great with all wifi connections but not with my home wifi connection.
when it's connected to the home wifi i can use the browser to surf the web and some apps work fine like facebook - messenger - twitter (which i had to download them as apk) but google play doesn't work, at first it couldn't even get me to the page where i should sign in with my email and was giving me this error " there was a problem communicating with google servers.. " so i connected the phone with another wifi network, and could sign in to google play and downloaded some apps too and everything seemed to be working perfect, but not on my home wifi.

i should mention that when i update apps and switch to my home wifi the app which is being updated doesn't stop but continues to update through my home wifi, but when its done updating and the phone tries to update another app it gives an error msg again.

i've tried so many thing to solve this but none have fixed this for me.
please help me.


问:
Can I virtualize Windows on an x86 Android device?
I've read this question, and of course, there, the answer was "you can't, because the architecture is different."

But that's not necessarily the case anymore. Many Android devices, like mine, now have x86 processors and also the specs to run Windows. Thanks to Remix OS and Android x86, many x86 desktop computers (and tablets, etc.) now run Android.

So, is there any way to virtualize Windows on Android if you have an x86 device?


问:
Detect when "settings" command in terminal has finished saving
When I execute the following command, it doesn't save anything:

```<code>settings put global <KEY> <VALUE>;reboot
</code>```

I think it's because it does not have enough time to save the value, because it reboots. The following command does save the value:

```<code>settings put global <KEY> <VALUE>;sleep 1;reboot
</code>```

Is there any better way to wait until the command has saved the value?


问:
Android notification screen upon swipe down
Can someone tell me what the number is an indication for under the time on the notification screen?  See the screenshot attached with arrows pointing to the number.


问:
Some JPEGs from micro SD card munged, others OK
Relevant contents of micro SD card:

437 files in DCIM > Camera directory

177 JPEGs can't be read (HEX dump begins with 0000 instead of FFD8)

138 are damaged (HEX dump includes a series of 0000 bytes)

118 photos are intact

3 videos can't be read

1 video is intact

548 files in LOST.DIR directory

Photos viewed from card in camera or PC yield same results, as do photos copied to hard drive.

Damages to photos include

blank pixels, sometimes of a single color

chunks of photo out of order

chunks of photo missing colors

Are damaged/illegible photos/videos hopelessly munged or can they be recovered?

Here is a sample image that shows all of these problems, along with its thumbnail that I recovered with JPEGsnoop.


问:
Android root sandbox?
On Windows I would use a sandbox to easily see file-changes made by shady programs to see how it would affect my system. What are easy methods (except decompiling and looking at the actual program code) for that on android?

Background: I ran the app 'stubborn trojan remover' showing me I'm infected with ghost push, a trojan for android. I looked up more information, but it seems there is very little. 'Stubborn trojan remover' gives also very little info, it doesn't even say where it removes the trojan from or where it found it.

Title: Android root sandbox?


问:
Is it possible to flash IMEI number of Nexus 5X without knowing its password
Phone was stolen from me and the next thing I did is to block the use of the phone in every possible way.

I would like to know that is it possible to flash IMEI number of Nexus 5X without knowing its password by rooting it.

The android developer options was disabled, the phone has a password lock and a fingerprint lock.

The phone was not rooted any time before.

Security updates were up to date.


问:
Why does Setup Wizard transmit/receive data even long after the Android device has been set up?
Even weeks after Android devices (tested on KitKat) have been set up, Setup Wizard still gets called frequently.

Using Xprivacy, it is clear that Setup Wizard frequently connects to Google servers.

What is it doing, and what data is it transmitting/receiving?


问:
How to migrate to a larger sd card
I am using a rooted fire tablet and have some apps installed on a 4GB sd card.
How can I migrate to a larger sd card? Will cloning and expanding the partition with gparted work?

I'm familiar with Linux and external storage is mounted via UUID. So I was afraid of just copy and paste, because that doesn't copy the UUID.

Duplicate, but no satisfying answer: Changing SD Card Just a Simple Copy & Paste

Title: How to migrate to a larger sd card


问:
Get notifications from Inbox mobile app for reminders, but not emails?
This question applies to the Google Inbox mobile app.

I do not want notifications for random incoming emails as I'm trying to only check email twice a day.

I do want notifications for reminders, as I will usually set these for a specific time to remind myself of something.

Is there any way to do this? According to Inbox's settings, it looks like it's all or nothing.

OwnerDisplayName: Steve Dolan


问:
Streaming Camera between two android phones without Internet
Is it possible to stream live camera from one android phone to other without Internet using wifi-hotspot of one these phones?
I have tried IP webcam app. But the other mobile's browser can't connect to given ip address (with x.x.x.x refused to connect error) . Second phone is connected to wifi-hotspot created by the first one.

Are there any other app available that can stream camera with wifi-hotspot connectivity?


问:
How do you debug in an Andorid phone that is not a Nexus?
I am trying to hook up my LG818P to chrome developer tools. In the Google documentation it says to download the firmware form the OEM's website, yet every step after installing said usb driver assumes you have a Nexus device.

The instruction include updating your mobile phone driver from /extras/google/usb_driver, which is a package that explicitly says is applicable to Nexus devices. The documentation is too vague for me to spot a proper solution.


问:
How to recover the lost data from NQ Vault
my phone got factory reset by mistake. I had very important data in my NQ Vault. Is there any possibility wherein I can recover it.
Please note it was not the premium account. It was a basic one. Also online account was created however no backup was taken. Please please help me!

Can anyone please help!


问:
Huawei P8 Lite Wifi Problem
Huawei P8 lite ALE-L21. Since yesterday Wi-Fi did stop working. To be more precise, I see my wi-fi network but I can not connect to it. I receive a "saved, secured" messaged and if I insist I get "denied access to network". I day before, same installation did work. Now I did try to configure a unprotected wi-fi network, it dos not work anymore. I did also try to hard reset my phone, wipe all cache but the issue didn't resolve. I assume now that this is a hardare issue related to the L21. Android Version is 5.0.1</p>

Title: Huawei P8 Lite Wifi Problem


问:
Not able to flash android N preview system.img in Nexus 6P
Not able to flash android N preview system.img in Nexus 6P

Android N preview (Nexus 6P "angler")

Build : angler-npd56n-factory-1ce5ccad.tgz

fastboot flash bootloader bootloader-angler-angler--03.55.img

fastboot reboot-bootloader

fastboot flash radio radio-angler-angler-03.67.img

fastboot reboot-bootloader

fastboot erase system

fastboot erase boot

fastboot erase recovery

fastboot erase cache

fastboot flash system system.img

error: cannot load 'system.img'

fastboot flash boot boot.img

fastboot flash recovery recovery.img

fastboot flash cache cache.img

fastboot flash vendor vendor.img

fastboot reboot

Already tried below options

fastboot -S 512M flash system system.img

fastboot -S 1024M flash system system.img

fastboot -S 2048M flash system system.img


问:
I keep getting the error "An unexpected error has occurred. Please try again later."
I've tried to use both my card and paypal to pay for an app on three different devices (desktop computer, phone, and tablet). None of them work and on my phone I get "Error. We couldn't complete your request." I've tried different apps too so its not a problem with the app or the way I'm accessing the play store. I have 2-step verification turned off.

*Now it won't even show certain paid apps on my phone in the google play store. (The two apps I'm trying to purchase both don't show)

*edit2: I believe the cause may be that I'm not in the US (where I got the free version of the app I'm trying to buy) and it may not be in the UK version of google play store.


问:
Beginner question about Android ROM and boot process
I read tons of things about Android devices, but I did not manage to find an overview about the boot process.

My technical level is okay to fully (really) understand how a PC boots.

What I understand, but may be wrong:

a device contains a main flash memory. We can insert additional flash memory (aften as Micro SD card) but is not used during boot

the processor is often embeeded in a SoC (system on chip), with a ROM (or probably a flash too) acting as a BIOS. I wonder if this BIOS is really separated from the main flash

the main flash contains a Linux kernel, and another part contains the root filesystem. This can be modified by installing a new ROM (which is obviously a misleading name)

when the device is powered on, the processor executes the BIOS. Which in turn loads the kernel into memory, then execute it. Now this is a somewhat regular Linux system

during BIOS execution, we can use some buttons to access basic functions. One of them allow to reflash the main memory

If someone provides links to this kind of "basic" informations, I will be really greatfull.

So if all this is right, then a bricked device can just be reloaded with a working ROM? I can then fiddle as I want, at worst I only will have to reflash.

Is there another way to boot this kind of device? For example using a micro SD card loaded with a kernel an filesystem. I presume this is very device dependant, because the BIOS has to support it.

I see there are "soft" and "hard" brinking. What is the difference?


问:
Can't enable NFC on Samsung Galaxy S3
For some reason I am unable to enable / use NFC on my Samsung Galaxy S3 (i9300).

When I got the phone, it did work. A month ago, I wanted to use it again and it did not work. I am currently using a non-original battery in my phone, but I swapped the battery with one I've tested NFC with, and it still didn't work, and NFC with my battery in another S3 does work, so it can't be because of the non-original battery.

When the issue first appeared, I was using stock firmware (Android 4.3). After I flashed my phone to Cyanogenmod 13 (including wiping all caches, system, data, ...), I tried again and NFC still does not work. When I flip the NFC switch from off to on, it stays in the 'on' position, but it is disabled (gray), I can't switch it off or on again until I restart the phone, and any app trying to use NFC is telling me to enable it.

There is no warranty on the phone any more, first, because it's too old, second, because there is root+CM on it.

Is there any way I could get NFC to work again? Any "NFC reset" or whatever? Or would I have to buy a new phone? Could this be any software issue or is my NFC module probably broken?

EDIT: logcat says 2952  5203 E NFC-HCI : Could not open /vendor/firmware/libpn544_fw.so. But that file does exist ...

Title: Can't enable NFC on Samsung Galaxy S3


问:
Fastboot not flashing/erasing recovery
I am trying to fix my phone (LG G2, Lollipop 5.0.2) by reflashing a recovery (the old one was corrupted). I've managed to get into Fastboot however I cannot flash / erase it; this is the output:

```<code># fastboot flash recovery recovery.img
target reported max download size of 1862270976 bytes
sending 'recovery' (9032 KB)...
OKAY [  0.335s]
writing 'recovery'...
</code>```

And then it stays stuck there forever.. (The same thing happens if I try to erase it). I cannot access bootloader and neither previous recovery.. Also trying to install recovery from twrp / cwm manager throws an error (I have root in my phone though).
Any help is greatly appreciated, I am stuck with a basically unusable phone.

Title: Fastboot not flashing/erasing recovery


问:
Block Android 6 upgrade?
I am getting pushes for Android 6 Marshmallow on a couple devices.  I do not want or need it, especially with some changes that affect how the USB popup now has no "Just Once" option in 6.x (according to other reports).

So, without rooting them, is there a way to block/disable/remove the upgrade pending notification push "Software update ready to install".  Frankly I didn't want it to download it in the first place.  I am perfectly happy with Lollipop on them the way they are and I need the "Just Once" option with what I do with them via USB.

Now frequently when I unlock my phone (Galaxy S5) it pops up full screen and only option is "Now" or "Later".  There is no "Never" option.

On my tablet (nVidia Shield K1), it pops up every time I turn it on.

Any way to clear this upgrade sans root?  I guess if I have to root to get rid of this update, I will.  If thats the only option, I can figure out how to root the devices.  Past that anyone have instructions on the upgrade removal once rooted?

Title: Block Android 6 upgrade?


问:
How do I use Android device with USB OTG device as MTP client for another device?
I want this setup:

```<code>[My Android device, MTP client] --USB OTG-- [other Android device, MTP server]
</code>```

For acting as MTP server, one simply chooses something like "Share files with computer running Windows or Mac".

How do I run MTP client for USB OTG connection?

Workaround:

Get root;

Setup Linux chroot

Download and build AFT insde the chroot

Use aft-mtp-cli or aft-mtp-mount.

I expect some proper application to use root access to talk to USB and act as MTP client for another device.


问:
Non-Rooted Android Emulators for Mac
I was running some apps on Android Emulators for Mac.
But one day they stopped working. The error said that I was using a rooted device.
I tried to unroot the emulators but they all did not work.

So I was wondering if anybody could tell me Non-Rooted Android Emulators or ways to unroot emulators completely

These are the emulators I used to use:
Genymotion, Andy, Bluestacks

Title: Non-Rooted Android Emulators for Mac


问:
Note 4, cannot turn on wifi
It started when I factory reset with twrp and flashed a new ROM. I tried different ROMs and stock when I noticed that I couldn't turn wifi.

I ran ifconfig with the terminal emulator app and found out I was missing wlan0. Running "adb shell ifconfig wlan0" gave "ifconfig: wlan0: No such device."
I was looking at the logcat live while tapping to turn on wifi and it was giving me "Supplicant not running, cannot connect" and the drivers weren't able to be initialized. Going through the phone and entering in ##4636## for the wifi information, wifi state was stuck on enabling and the supplicant state is uninitialized. The MAC address was 02:00:00:00:00:00 if that is of any importance. After searching some more for help, I found out /sys/devices/virtual/net/ was missing wlan0 as well. I think that the wlan0 firmware or drivers are missing, but I'm not sure. I tried "fixing" the permissions on the supplicant file and renaming the file, but to no avail. I would like some help on this. Thanks

Note 4 (N910T variant)
The ROMs I tried
TekHD ROM (5.1.1)
CMRemix 13 (6.0.1)
Resurrection Remix 5.6.9 (6.0.1)
Stock (6.0.1)

Title: Note 4, cannot turn on wifi


问:
my text messaging app is suddenly displaying all my contacts with no conversations
My text messaging app instead of just displaying all my recent text messaging conversations has suddenly included ALL my contacts. My recent SMS conversations are swallowed up in the midst of all my contacts. How do I delete these contacts  with whom I have no text message conversations from my message app? I want to keep the phone numbers in my contacts but I don't want the contacts stuck in the middle of my text message conversations...help!</p>


问:
Unable to login to facebook due to Network Exception
In HTC m7 . When I login to facebook . It shows me an error

Please check your network connection or try again later.

(HttpNetworkException: AsynSocketException: connect failed, type = Socket not open errn= 101(Network is unreachable)


问:
How can I tell if someone is getting into my device remotely
I think someone is spying on me. How can I tell if someone read my messages for pink my phone calls or downloading pictures to their equipment or from cuz I have Android IP address pop up on my Google account every now and again that isn't mine</p>


问:
Stop bluetooth answered or outgoing call from automatically unlocking screen
When I get in the car I leave the phone in my pocket.  Then when the phone rings, I answer the call through the car's controls, but the problem is that this unlocks the screen.  This causes buttons on the screen get activated accidentally and does things like muting the phone, or turning off bluetooth, etc.

Does anybody know a way to stop the phone from unlocking the screen automatically b/c of bluetooth?

Nexus S 2.3.6 on 2012 Volkswagen bluetooth


问:
Faster charge through higher amp charger?
I'm looking for a solution to charge my Android smarpthone as fast as possible when travelling, eg. when sleeping at a camp site where I don't want to have to sit there for two hours just to make sure the phone doesn't get stolen.

Most USB chargers are 1 amp, but I was wondering if I could use a higher amp charger, eg. 2-5 amps, so the phone would charge faster without getting fried?

Thank you.


问:
Can't write to storage after some time
I have a Galaxy S II GT-I9100 4.1.2 Rooted.

I have to restart my phone to be able to basically do anything involving writing to a file, such as taking a picture, browsing, copying anything through USB. I cant delete anything. Apps cant download and show pictures. But i can get messages, strange. This happens after some random time and a restart fixes it. Usually it takes like 10 mins or so. I thought it might be overheating but its fine. It has been like this since around 6 months and it was fine before and I changed nothing.

Title: Can't write to storage after some time


问:
Vertical task menu list
I was playing with settings or something and I changed my menu task list to be in horizontal style. Earlier it was in vertical style. How can I change it back in lenovo k4 note (marshmallow).

I want it to be like this:

Title: Vertical task menu list


问:
adb device not found after reboot
I am developing an automated test script to turn off my android device and turn it on back again and then run a few adb commands after the boot is complete.

My problem is that when I turn the device off and turn it on back again, the sys.boot_completed flag is true , showing that the device is on, but any command such as adb  -s <device_id> shell returns a device not found error.

I tried inserting delays between commands and sleep for boot completion but this error sometimes shows up after a few reboot cycles.

Is there a way to automize reboot with some post-reboot sanity check ?

Title: adb device not found after reboot


问:
Show Full Screen Portrait Layout with a VERTICAL screen with miracast
I have read this post and understand it is obviously not a smart idea to display the portrait layout on a horizontal (say 16:9) screen. However, many newer screens are able to rotate up (to 9:16) so I wonder if there is any short cuts to display the same portrait layout on such a screen, just like the one in this ad (which sells for $600 while we can buy a standard tiny 2.4G miracast receiver for less than $20).


问:
When my Google account is deactivated/expires, will my phone delete/lock my apps?
Short version: I'm afraid my Android (HTC One M8) will freak out and delete/lock all the apps connected to my soon-to-be-deactivated Google account.

Long version: So my college email ("Account 1") is being deactivated next week (yay graduation!), and I want to make sure I'm taking all the right steps to save all my data (emails, Chrome stuff, Maps, apps, etc.). I created a new Gmail account ("Account 2") to transfer everything into. I've browsed the forums, and everyone says it's impossible to transfer Google Play Store data between accounts. However, I didn't find any discussions about what happens if my downloaded/purchased apps are connected to a DEACTIVATED account.

Most of the discussions I found talked about having multiple accounts on the same phone, and how Account 2 can still use apps downloaded/purchased by (still-active) Account 1 on the same phone. No problemo. However, I don't have this luxury, because my Account 1 will cease to exist next week.

My question is this: If I change my phone's primary account to Account 2 without removing Account 1, but then Account 1 ceases to exist in one week, will my phone freak out and automatically delete and/or lock all the apps that were purchased/downloaded by Account 1? Can I keep updating those apps after the expiration? And will it make any difference if I disable all of Account 1's syncing so that my phone "can't tell" that the account got deactivated?

Thanks for all your help!!


问:
How can I enable the dropdown notification bar on lockscreen on the Asus Zenfone 2?
On my old phone (Samsung I9305), I was able to enable the dropdown notification bar while the phone was locked by using this Xposed module.

However, it doesn't work on my Zenfone 2. (Running 5.0, rooted with Xposed Framework.) Yes, I have activated the module, rebooted, activated the setting and then rebooted again.

Several other Xposed modules do work.

Maybe it's because of incompatibility with 5.0 or x86?

In any case, is there any way to enable it on the lock screen?

By the way, the bounty notice says "credible sources." Obviously, that's not required. It just needs to work. Should probably have used to "draw attention" tag.


问:
Why phone performance decreases day by day?
I bought Lenovo A7000 10 months before. It worked fine until last month. But, after marshmallow update phone getting lag on sometimes for no reason. After update battery life is good. But performance is not up to the mark. What is the reason?</p>


问:
reverse tethering - offline for some applications
I try to get internet on my phone from my computer without instlling any tools.

My configuration looks like :

```<code>mybox -----(Ethernet)------[my computer]------(USB)-----[the phone]
</code>```

I enabled usb tethering so I have two interface on my computer : eth0 and usb0.

I read
How to set up reverse tethering over USB?
and I have done :

One the computer:

```<code>sudo ifconfig eth0 0.0.0.0
sudo ifconfig usb0 0.0.0.0
sudo brctl addbr br0
sudo brctl addif br0 eth0
sudo brctl addif br0 usb0
sudo ifconfig br0 up
sudo dhclient br0
</code>```

On the phone :

```<code>su
netcfg rndis0 dhcp
</code>```

After that I have :

```<code>IP of rndis0 on the phone : 192.168.1.22/24
IP of br0(eth0 + usb0) on my computer : 192.168.1.21/24
IP of the box : 192.168.1.1/24
</code>```

When I try to do a ping on the computer and on the smartphone, it works :

```<code>ping 8.8.8.8
</code>```

But if I try to ping on a domain it work on the computer but not on the phone:

```<code>root@hammerhead:/ # ping google.fr
ping: unknown host google.fr
</code>```

Ok so maybe a dns problem of the smarphone? (I don't believe on it because it is obtain by dhcp and the ping work on the computer):

```<code>root@hammerhead:/ # getprop | grep dns
[dhcp.wlan0.dns1]: [192.168.1.1]
[dhcp.wlan0.dns2]: []
[dhcp.wlan0.dns3]: []
[dhcp.wlan0.dns4]: []
[net.change]: [net.rndis0.dns2]
[net.dns1]: [212.27.40.240]
[net.dns2]: [212.27.40.241]
[net.rmnet0.dns1]: []
[net.rmnet0.dns2]: []
[net.rndis0.dns1]: [192.168.1.1]
[net.rndis0.dns2]: []
root@hammerhead:/ # ping google.fr
</code>```

Also, some applications (youtube, chrome) say I'm offline.

Then my questions are : why these applications say I'm offline when I can do ping 8.8.8.8 or another addresses? and why the ping of a domain doesn't work?

Of course, I can give you more informations if you want

EDIT (new information)
Also when i delete all rules except unreachable :

```<code>root@hammerhead:/ # ip rule show
32000:  from all unreachable
</code>```

and if I try ping 8.8.8.8 it give me connect: Network is unreachable which is normal. but when i try ping google.com I get ping: unknown host google.com. So a ping to a domain just doesn't reach the 'routing stage'. I can have the same behaviour on a linux machine where /etc/resolv.conf is empty but on my android I get the DNS from the dhcp server of my box. When i connect my phone to my box with wifi it work fine with dhcp...

Thank you


问:
Volume settings keep changing automatically- driving me nuts
I am running Andoird 6.0.1 on a Samsung Note 4.

In the past few days, the phone will change the four volume settings on its own! I usually keep the notifications and system volumes off, as I don't want to constantly be disturbed by the phone. However, several times a day those volume setting will change. I also keep the ringtone and media volumes at levels that I like, and they too are changed.

Any ideas what can be causing this? I haven't installed any new apps (though not sure if some apps may have updated automatically) lately. I can't seem to be able to get my preferred volume settings to stick.

Please help! Thanks.


问:
How do you change name of the internal storage memory in an Android device
I am using Android 4.4.4 on a device called GPD XD.

Right now, I see that when I connect the device to the computer via USB, both the internal memory and the external memory card are called "SD Card". This is causing some issues to the OS, since it can't see the folders on the SD card, due the fact that both internal and external memory has the same name.

How do you change the name of the internal device? I did search but found nothing relevant. I believe some app that I downloaded (emulators from the google play store), did change the name, because last time that I did use the device, it was working fine and the name of the internal storage was not "SD Card" for sure.


问:
How do Android Communicate with Storage or External Storage?
I Wants to know that how the android os is communicating with the storage devices, as because I have two USB Devices from same vendor (ScanDisk) and of equal size (8 GB) and having same File System (FAT32).

Scenario is, I am trying to use those USB Devices using OTG Cable With my MOTO X Play. Lets say USB-A is working fine but not USB-B. Even i Tried to format them using Windows OS to NTFS / FAT32, but still the result is same.

In next attempt I made copy of default folder / directory that usually created by android system to external storage to both USB's, then the Scenario get reversed. with FAT32 / NTFS USB-B works fine but not USB-A.

Surprised? I'm too but I wants to find the reason. Both USB are working fine with other OS like Windows / Linux(Desktop version) as I checked already.


问:
Increase swap space for RAM
I have Micromax canvas 2.2 with android 4.2.2 & kernel version 3.4.5. I have already rooted my phone. Now, to increase swap space I partitioned sd card using mini partition. Then tried to link it using Link2sd app. But it didn't work. Everytime I try to mount that partition phone restarts but the effect is gone after restarting. Means nothing actually happens.
Please help.</p>

Title: Increase swap space for RAM


问:
Encryption on a rooted Canadian S5 (SM 900W8)
I am trying to encrypt my Canadian S5 and have high and low online for the multiple answers given to me on Google and XDA. I can't seem to do it either way.

What happens is when I run the encryption I get the screen saying encryption and then everything goes blank and nothing happens when it reboots (after a few seconds). How ever it will encrypt an SD card installed.

As I mentioned before I have looked everywhere and can't seem to solve the issue.

Thanks in advance.

Padraig.


问:
How to know if an app has a background service that queries the gps and sends it to a server on the net?
How can i tell if an app has a background service that queries the gps and sends it to a server on the net?

For example i want to monitor get taxi app to see if while not in use it spies on the user....

If possible i would rather not use wireshark with a hub...


问:
How to route audio from bluetooth headset's mic to android speakers
I have an android app which routes mic audio to speakers in realtime. What I want it to do is instead of routing built in mic audio, it route audio from mic of a bluetooth headset.
Background: I just wanna use my bluetooth headset as mic and connect the phone to loud speakers so that whatever I speak comes through loud speakers wirelessly.</p>


问:
Android phone images are not the correct resolution
My android phone has an 8 megapixel camera meaning the resolution of the images should be 3,264 x 2,448. However when i plug my phone into my computer and view the details of the pictures, some are 1920 x 1080 but most of them are 1280 x 720. If someone could explain why this is happening that would be great.</p>

OwnerDisplayName: gommb


问:
How do I change the phone number for incoming calls to international format on the mobile
My contacts have their phone number in the international format.  It needs to be this way, otheriwse I can't call them from another country.  As an example

```<code>+64 21 1234567
</code>```

But the incoming calls have the local number, so the software can not correlate them with the contacts.  That is, I can't tell who is calling.  Example

```<code>021 1234567
</code>```

Points to note (all phone models are Samsung)

On my previous phone, S6, things worked just fine as they did on S4 before
that.

Now that I have migrated to S7, I have the above problem (with the same contacts that were migrated across).

My wife had this issue with her S5 and I managed to fix with some setting.

My wife migrated to Note 5 and all still works fine for her.

I have gone through all the settings I can think of, several times but have not found any that will fix this.

I can fix it by adding the local number to the contact as well the international format.  WIth several hundred contacts, this is a lot of work and will still give problems when I am outside the country.

The SMS system works fine, its just the voice calls.

I am still with the same provider.

Where is the setting to fix this ?


问:
Transfer information to SD card (apps)
I have a problem transfering information to SD card on my Lenovo Vibe C. I had Lenovo A319 in the past and I bought Vibe C (Cause I broke the screen).It was much easier then and low time-consuming. I transfered the apps and other documents I needed from the old phone to the internal memory of my new one and then tried to put them on the SD card, but it takes too loong. Any ideas how to fix it?</p>

Title: Transfer information to SD card (apps)


问:
Problem with Samsung Galaxy calls
I have a Samsung Galaxy S4 Active mobile phone and for the past year suddenly I couldn't make a call. Whenever I was trying to answer or call someone I couldn't hear them and they couldn't hear me. I tried fixing it alone but I didn't make it. So I went to someone more expert. He changed the microphone and the speaker but still. The problem is still there. Now sometimes it works but suddenly stops. The weird thing is that on Viber I can hear and they can hear me.
Also, tried to change the sim card but still. No solution.
Has anyone had a problem like that ? </p>

Title: Problem with Samsung Galaxy calls


问:
Samsung tablet hangs a lot
My Samsung Galaxy Tablet 2 10.1 model no.P7500 is giving me a lot of hanging problems. Most of the times, the touch is unresponsive and touch operates automatically and makes me land in unwanted places. The device is not rooted and I had done a factory reset and also flashed stock ROM but the problem continues.</p>

Title: Samsung tablet hangs a lot


问:
How do I delete an incorrectly auto-completed word with backspace?
I use Samsung's default keyboard for typing. Specifically, I use the Swype-like part of it, SwiftKey Flow.

I recently updated my Samsung Galaxy S5 to Android Marshmallow, and I noticed that a feature I liked about SwiftKey was changed/removed. Previously, when I would swipe across the keyboard to "type" words, if the predicted word was incorrect, I could hit backspace once and that would delete the word.

That is also how my Galaxy S3 worked before I got the S5. When I type on a computer, I hardly ever delete things a character at a time. I delete the entire word with Ctrl+Backspace, and I really liked this type of thing on my phone too.

Following the Marshmallow update, if I mis-swipe a word and hit backspace, it only deletes one letter. This causes me some grief because then I have to hit backspace many times if the word was long, or hold the backspace key and risk deleting more than intended. In addition, I am so used to the previous behavior that I don't realize the word is incorrect, and I keep typing a gibberish word.

Is there a way to reintroduce this feature? Note that this is not the same as this question, and is in fact the opposite thing entirely.

I have tried looking in Samsung keyboard settings under Predictive text, Auto replace, and Keyboard swipe (all that does is let you select SwiftKey Flow, but not change anything about it), but I didn't see anything that lets me change this.


问:
Control Camera with Pro settings like in Lumia camera
Are there any apps that would let us change ISO(preferably upto 3200), shutter speed upto 4 seconds , etc? Because , i really wanna try some long exposure photography on an android device.

following images are shot using lumia 520 at 4 seconds shutter speed.

]2]2


问:
Purpose of the "persist" partition
There are a lot of posts on the internet on how to fix or restore, but not many about what it is for or what is stored on it. What gets stored on it? Does the SIM unlock code go there? Or are values related to cellular functionality stored there (e.g., IMEI, CID, etc.)? In what way is it persistent?</p>

Title: Purpose of the "persist" partition


问:
Suspicious guest user activity and keyboard setting changes
A guest user is occasionally created on my phone and I don't know why. It consumes some mobile data, as indicated by Android's data usage report.

Another suspicious thing is that my keyboard's languages are regularly disabled, only leaving the default one.

How can I log this activity, so that the next time any of this happens, I can know what app is causing it ?


问:
Where did the lock screen ring go to with Lollipop, and how to get it back?
Up to Android Kitkat, there was the lock screen ring:

Lock screen with activated unlock ring

One could define up to 4 apps to be directly started from here (plus the option to simply unlock). This seems to have changed with Lollipop: there's only the phone symbol in the lower-left and the camera icon in the lower-right corner which one might redefine. When I discovered that on my first LP device I thought it might be due to the specific ROM (CyanogenOS 12.1) – but after having another device updated to Lollipop, I see it's the same thing there.

Two shortcuts are simply not enough for me – so I ask myself whether I've missed something (e.g. didn't find the corresponding setting), or if it's really gone for good. I want the ring back – so how to achieve that? Two possibilities which are not a real option: third-party lock screen apps (which usually want access to a bunch of things to work properly), or the Gravity Box XPosed module (doesn't work with CyanogenMod: device becomes unstable and behaves weird).


问:
Problems after restoring nandroid backup
On my Galaxy S5 (SM-G900F, Android 4.4.2) I made a nandroid backup of "everything" (boot, cache, recovery, system, etc.) about six weeks ago (using PhilzTouch recovery). Yesterday I tried to restore it, and it seemed to work but when Android had booted up I started getting force closes all over the place.

I tried wiping cache and data, but it didn't make any difference. I had a look at the log for one app when it crashed, and it was due to

```<code>java.io.IOException: open failed: EACCES (Permission denied)
</code>```

I have not changed anything on the SD card since I did the backup (sent the phone in to repair a dead pixel but they wouldn't do it on warranty, so I got the phone back the way it was).

One idea I had was that something was messed up with the file permissions, so I tried Fix permissions but that didn't help either.

I then thought I'd try to flash Lollipop using FlashFire. Everything went well, and I was really surprised to see that now all the apps were working flawlessly! So to get back to KitKat (which is what I want), I then tried flashing the KitKat ROM (BTW, these are all official samsung ROMs from SamMobile. Now it didn't even boot properly, it got stuck on "Android is upgrading - Starting apps...". Tried wiping data/cache again but nothing worked.

I have since tried repeating the but without flashing Lollipop (i.e. flashing the same ROM as the one in the nandroid backup, directly from the restored nandroid backup state), but it always gets stuck on the "Android is upgrading" screen.

So it seems that I CAN restore the KitKat nandroid backup, but it's unusable "as is" because of most the apps force closing. However, if I flash Lollipop "on top" of the backup, everything works.

Can someone explain this, and possibly provide a solution? I'd really like to have this phone exactly as it was when I did the nandroid backup.


问:
Google contacts sync issue with Lenovo Vibe K5
I have Lenovo Vibe K5. I have several contacts in my Google account, and tried to sync them to my phone. I'm suffering from two issues.

Issue 1:

Contacts with same name (with possible permutations) were not syncing. Look at the examples to understand better.

Example 1:
In google, if I have these contacts:

```<code>Ram Kumar - 9876543210
Kumar Ram - 9876543211
</code>```

then, only one of the two gets synced to my phone. I got only Kumar Ram synced in phone.

Even though, after syncing, if I delete Kumar Ram in Google contacts, and re-sync in phone, only Kumar Ram gets deleted and Ram Kumar doesn't appear though. It appears only after deleting the account from phone and re-add and sync again.

Example 2:

In google, if I have these contacts:

```<code>Rahul Sharma - 9876543210
Mirza Sania - 9876543211
Sharma Rahul - 9876543212
Sania Mirza - 9876543213
</code>```

then, only Sharma Rahul and Sania Mirza gets synced.

Again, just deleting the Sharma Rahul in Google contacts, and re-sync in phone won't fetch Rahul Sharma to my phone. I need to delete my Google account from phone and re-add and sync again.

Note: All contact numbers are unique. Also, tried syncing in other android mobiles, it works perfect. The issue only happens in Lenovo Vibe K5.

Follow up issue:

When I add some contacts (similar to Issue 1 with such contacts) to my Google account from my phone, the contacts gets added, synced to Google accounts, but, got DELETED from the phone's contacts (under google account). It appears only in Google contacts website. Syncing again and again, but it doesn't appear in phone's google contacts area.

Add these two contacts in phone under Google account :

```<code>Ram Kumar - 9876543210
Kumar Ram - 9876543211
</code>```

Sync now, and both gets added to Google. But, one among them or, sometimes both gets DELETED from phone (under google accounts contacts). [Issue 1's case again]

Case 1: Add first contact, sync, and then add second contact - now only one contact will be deleted in phone. (In the above example, Kumar Ram gets deleted.)

Case 2: Add both contacts, and then sync - now both contacts gets deleted from phone.

It will only appear in Google contacts web version. Never ever in your phone. If you remove the account from your phone and re-add and sync, then Issue 1 will occur.

This issue happens only in Vibe K5. Tried same Google account on other phones, it synced perfect.

How can I fix these?


问:
how to restore mount points
i have a bricked device , after 20 hours of flashing and searching , i found that my device lost some mount points
here is the the mount points of my device

and here is the mount points of a working device (the same)

as you can see a lot of mount points are messing:

mmcblk0p5 (system)

mmcblk0p7 (data)

mmcblk0p8 (internal sdcard)

mmcblk0p6 (cache)

this is why my device is bricked, i cannot format/mount any of those partitions , and my device is stuck on logo , my friend own the device which is working fine , so how can i extract those from his devices and push them to mine
via adb pull and push commands ? or is there any way to restore my mount points

Note : my device is Mediatek mt6589t

thank you very much

Title: how to restore mount points


问:
Disabling notifications from S Planner results in notifications that you have disabled notifications *facepalm
I have tried to disable my S Planner because I use an alternative calendar app. Now that I have turned off notifications I get the same notification constantly  (reappears almost instantly after cleared) informing me that I have disabled notifications.

Yes, a notification from the app to let me know I have disabled notifications. Face palm and wtf. Probably the most annoying thing I have ever encountered on Android.

The indestructible Message Reads:

"S Planner noti. not shown
To receive notifications from S Planner, tap SETTINGS, go to App info > Permissions, then allow the following permissions:
Calendar"

I have disabled everything all permissions, notifications, default settints, stopped the app, even restricted its use to wifi.

I have tried to do my due diligence and look for a post that answers this question but could not find it, if such a post exists kindly link to it.

Thanks


问:
What is tested in the Google Play Pre-Launch Security Report?
The Google Play store includes a pre-launch security scan in Pre Launch Report -> Security. I am trying to find out what it is actually testing for. Are there any resources that get into detail on what this scan includes?

The Learn More page doesn't say much other than “Each test summary includes the name and description of any security vulnerabilities found in your APK.”


问:
Unable to restore apps in Titanium Backup after marshmallow
I recently flashed my Note 4 (N910W8) to Marshmallow and rooted my device. I had taken backup of all my data using Titanium Backup while I was on Lollypop. Now after flashing my device with marshmallow, I am unable to restore my data as Titanium Backup is not able to detect / read the applications in the backup. It is only showing the older apps but not the latest ones. Could anyone help me out?

Thank you!