问:
How to root VIVO V3 and install custom ROM
I want to root my vivo v3 mobile to use it better.

Also want to install recovery like CWM/TWRP.
After that custom ROM like cyanogenmod or any other because it's current UI sucks.

I tried with some apps but that are not effective.

Please give me all possible options.


问:
How does wifi hotspot internally works ?
I have an Android device which has Access Point (Wifi Tethering). What exactly happens when another device connects to this access point ?
Which are the classes or libraries (if any) involved in whole process ?

P.S - I have searched for answers on internet but no success so far.
TIA

ContentLicense: CC BY-SA 3.0


问:
Volume rocker as next/previous song
This probably is a common question but so far I have not seen a thorough answer.

I want to know if it is possible to have the rocker functionalities that are on cyanogem mod on a factory rom (htc desire s).
that is:

long press up    =  next song.

long press down  =  previous song.

short press up   =  volume up

short press down =  volume down

I would like to keep using the HTC ROM, since I like the sense UI, and also id like to keep using the HTC music player, I think is simple and is able to manage correctly the compilations albums.

Does anyone know of an app that can do this, that is NOT another music player.
Or as a 2nd option to explain if it is possible to create my own app for it and maybe to make some points towards the right direction to do this.

ContentLicense: CC BY-SA 4.0

Title: Volume rocker as next/previous song


问:
/system has self-destructed by itself
Posting on behalf of a friend. He is a little bit insane.

Last night, I turned my phone off after listening to music. This morning, i turn it to receive the heart-warming message 'Please install an Operating system.' I thought that I could just flash my TWRP Backup - Recovery still works - but It does not work. I can't even detect the device on ODIN/Heimdall.

Help? I am No longer rooted (since /system has emptied itself)

Title: /system has self-destructed by itself


问:
Apply google password change to android
I've recently changed my google account password on my PC. My phone/android then started prompting me for my google password but I've been having trouble in that the password isn't working, it then said something about needing to log in from a browser instead which also had trouble. The prompt now seems to have disappeared so I've rebooted but still no prompt yet.

It's obvious android detected the password change but now something has gone wrong. Is there a way I can manually fix this? I've briefly seen something about removing the account but that warns that all messages, contacts etc will be removed which doesn't quite seem like the best way to go about it...

Title: Apply google password change to android


问:
APN settings vanish after some time of LTE data usage and only return on restarting phone
I am using OnePlus 3 and Reliance Jio sim. Android version 6.0.1.

I am able to use 4g data via the sim. Major access point name settings that I get by default from the network:

```<code>APN: jionet
mcc: 405
mnc: 864
</code>```

It works perfectly for upto 20-30 minutes. After which, my phone can not connect to the 4g network anymore. On further inspection, I go to the APN settings page and get the following message,

Access Point Name settings are not available for this user.

When I try to manually add these settings and click on the save button, the APN settings dont actually get saved and I still get

Access Point Name settings are not available for this user.

I need to restart the phone to connect to 4G again, and after 20-30 minutes, the cycle repeats.


问:
Is it possible to always map volume buttons to media volume?
I don't use alarm or ring volume. I use vibrations for those, their sound is always always muted, unless I unmuted them by accident.

Sometimes I do want to control media volume when I'm not actually playing any media.

I am aware the same question exists for another phone, but it's 5 years old. A lot has changed since then.

Since I use a Nexus 6P running stock Android (Nougat), I'm willing to accept answers that apply only to this specific situation as well.

I haven't rooted my device, so I won't accept any answers requiring that. I do encourage to post answers specificly for rooted devices, so others can find it anyway.


问:
Possible to quickly expire a fingerprint?
Let's say I wanted to quickly prevent my fingerprint from unlocking my phone; so that the next time the lock screen shows, a password is required. Is there a way to expire the fingerprint unlock session right away?

I tried searching but didn't find much quickly.

Edit: Thank you for posting the answer How can I limit the number of fingerprint attempts before fallback to other login type?. That is helpful information (in that it eliminates one potential answer). But, I don't really want to change the number of attempts. I want to make the phone temporarily not accept the fingerprint. I don't want it to forget the print, I don't (strictly speaking) want to change the number of allowed attempts. I want to tell the phone "Hey, next time you unlock, require the password".


问:
Cannot sync or remove Google accounts
I'm on Android 5.0.1. Yesterday, I received several "Unfortunately, Google Play services has stopped working" notifications, which I ignored as I assumed whatever had crashed would restart.

But when I went into my Gmail app later, instead of seeing my inbox, I was asked to add a new account. Then, I checked Accounts in settings, and my two accounts were still there, but would not sync. When I try to remove the accounts, nothing happens (i.e., I press the "Remove account" button, and the phone simply does nothing).

I can connect to the internet consistently. However, it seems I am not receiving push notifications from any apps, including non-Google ones like Facebook messenger. And I cannot open other Google apps, e.g. Play Store (when I try to, I'm met with a blank white screen).

Any help solving this mess would be much obliged!

Title: Cannot sync or remove Google accounts


问:
Phone runs out of memory; reboots
Phone is an Alcatel Pixi 4 4034 (which has 512MB RAM).  For various reasons, I've ended up with an unofficial Cyanogenmod 13 port on it.  The problem I have is that the phone periodically slows down and crashes, apparently hanging for a couple of seconds then rebooting.

Doing a bit of digging in the logs, I've found that it's running out of memory immediately prior to the crashes.  I get lots of messages about the ActivityManager terminating various processes, but it clearly isn't enough because when I managed to connect adb during the reboot, I managed to get the following smoking gun from adb shell dmesg:

```<code>[ 4784.206692]  (3)[181:logd.klogd]Out of memory: Kill process 28595 (ndroid.systemui) score 0 or sacrifice child
[ 4784.206715]  (3)[181:logd.klogd]Killed process 28595 (ndroid.systemui) total-vm:761596kB, anon-rss:8552kB, file-rss:0kB
</code>```

This seems to be the root cause of the reboot: systemui is an essential service, and terminating it is going to cause the reboot, and indeed moments later I see:

```<code>[ 4784.439624]  (0)[1:init]init: Starting service 'bootanim'...
</code>```

Any suggestions how I can prevent this from occurring?  Why is the low memory killer not able to prevent the failure before it happens?

Title: Phone runs out of memory; reboots


问:
Android 7.0 - Torch Will Not Work With Camera
I have a Nexus 5X running Android 7.0. Every few months I have to photograph some meters that are in a dark location. These used to be read manually with a torch but now I have to submit photographs. I used to turn on the Nexus torch and take photographs without flash. This worked well but since a recent update of the camera app the torch goes out when I turn the camera on. Using flash generates glare and unclear photographs. Is there any way around this? Trying to hold an additional torch is proving near impossible because of the awkward access.</p>


问:
LG K120 - removing frp with fastboot
I found a LG K120 (LG Spree in US,LG K4 in Europe), after wiping it, in the setup process it asks me for the previous google acount (FRP).

After searching a lot of this model, none of the bypass google account solutions are valid.

I am trying now reinstalling the whole operating system via fastboot, but as the model is very new, there is no implementation (or at least, I'm not able to find it).

The only solution that comes to me is to wipe the frp partion, in HTC is located in /dev/block/bootdevice/by-name/frp, but I don't know which of the listed below is related with frp.

```<code>#fastboot getvar all

(bootloader)    max-download-size: 0x8000000
(bootloader)    partition-size:flashinfo: 1000000
(bootloader)    partition-type:flashinfo: raw data
(bootloader)    partition-size:userdata: 32000000
(bootloader)    partition-type:userdata: ext4
(bootloader)    partition-size:cache: c800000
(bootloader)    partition-type:cache: ext4
(bootloader)    partition-size:system: 9a000000
(bootloader)    partition-type:system: ext4
(bootloader)    partition-size:nvdata: 2100000
(bootloader)    partition-type:nvdata: ext4
(bootloader)    partition-size:efuse: 80000
(bootloader)    partition-type:efuse: raw data
(bootloader)    partition-size:persist: 3000000
(bootloader)    partition-type:persist: ext4
(bootloader)    partition-size:factory: 1400000
(bootloader)    partition-type:factory: raw data
(bootloader)    partition-size:rct: 100000
(bootloader)    partition-type:rct: raw data
(bootloader)    partition-size:cust: 6400000
(bootloader)    partition-type:cust: raw data
(bootloader)    partition-size:lgfota: a00000
(bootloader)    partition-type:lgfota: raw data
(bootloader)    partition-size:persistent: 200000
(bootloader)    partition-type:persistent: raw data
(bootloader)    partition-size:mpt: 1600000
(bootloader)    partition-type:mpt: raw data
(bootloader)    partition-size:persist_lg: 800000
(bootloader)    partition-type:persist_lg: raw data
(bootloader)    partition-size:encrypt: 80000
(bootloader)    partition-type:encrypt: raw data
(bootloader)    partition-size:eksst: 80000
(bootloader)    partition-type:eksst: raw data
(bootloader)    partition-size:tee2: 500000
(bootloader)    partition-type:tee2: raw data
(bootloader)    partition-size:tee1: 500000
(bootloader)    partition-type:tee1: raw data
(bootloader)    partition-size:keystore: 800000
(bootloader)    partition-type:keystore: raw data
(bootloader)    partition-size:secro: 600000
(bootloader)    partition-type:secro: raw data
(bootloader)    partition-size:oemkeystore: 200000
(bootloader)    partition-type:oemkeystore: raw data
(bootloader)    partition-size:seccfg: 80000
(bootloader)    partition-type:seccfg: raw data
(bootloader)    partition-size:expdb: a00000
(bootloader)    partition-type:expdb: raw data
(bootloader)    partition-size:lo_bak_go: 800000
(bootloader)    partition-type:lo_bak_go: raw data
(bootloader)    partition-size:logo: 800000
(bootloader)    partition-type:logo: raw data
(bootloader)    partition-size:recovery: 1000000
(bootloader)    partition-type:recovery: raw data
(bootloader)    partition-size:boot: 1000000
(bootloader)    partition-type:boot: raw data
(bootloader)    partition-size:para: 80000
(bootloader)    partition-type:para: raw data
(bootloader)    partition-size:laf: 1000000
(bootloader)    partition-type:laf: raw data
(bootloader)    partition-size:lkbak: 80000
(bootloader)    partition-type:lkbak: raw data
(bootloader)    partition-size:lk: 80000
(bootloader)    partition-type:lk: raw data
(bootloader)    partition-size:protect2: a00000
(bootloader)    partition-type:protect2: ext4
(bootloader)    partition-size:protect1: a00000
(bootloader)    partition-type:protect1: ext4
(bootloader)    partition-size:nvram: 500000
(bootloader)    partition-type:nvram: raw data
(bootloader)    partition-size:ftm: 800000
(bootloader)    partition-type:ftm: raw data
(bootloader)    partition-size:misc2: 800000
(bootloader)    partition-type:misc2: raw data
(bootloader)    partition-size:proinfo: 300000
(bootloader)    partition-type:proinfo: raw data
(bootloader)    partition-size:preloader: 40000
(bootloader)    partition-type:preloader: raw data
(bootloader)    warranty: no
(bootloader)    unlocked: yes
(bootloader)    secure: no
(bootloader)    kernel: lk
(bootloader)    product: MUSE6735M_E1LTE_L
(bootloader)    version: 0.5
all: Done!!
finished. total time: 0.013s
</code>```

¿Can anyone give me an idea?

Another problem than I am facing is when trying to erase a partition y get the following.

```<code># fastboot erase cache
******** Did you mean to fastboot format this partition?
erasing 'cache'...
FAILED (remote: unknown command)
finished. total time: 0.002s
</code>```

And the same answer with many other commands, it seems that LG has implemented a very reduced set of fastboot protocol commands.

To overcome this, flashing the partition with zero's file can do de job, that is my guess.

Thanks for your help.

Title: LG K120 - removing frp with fastboot


问:
How to reroute all traffic from Bluetooth tether to a VPN app
Today i tried to use a Bluetooth Personal Area Network to connect to my phone from my laptop because my phone had a VPN on it. When i went to test my IP address i found that android was not rerouting my Bluetooth traffic through the VPN app like i thought but it was instead going through the WiFi normally.

So how can i make Bluetooth tethering work with my VPN app?

Android version - 4.4.2

VPN App here


问:
what's necessary and what's not? stripping a rom to the bone
I'm experimenting with using am alternate rom (cm13) as a stopgap method to play Pokemon Go between suhide updates. it's not ideal, due to the large downtime involved with backup and restore between roms just for 1 game, but it has 2 major perks:

if niantic's algorithms detect that users are identifying some players by the fact that they'll only log in when there's known working bypasses, then this will circumvent that (legitimately)

this complies with niantic's wishes to alienate rooted roms.

I've pretty much stripped all common apps, system and user, plus some audio files (ringtone, alarm, etc) and language files.

nano gapps was installed and I removed a chunk of what that added too. and this brings the total rom size down to about 1220mb installed (996 in system) or 627mb total as TWRP backup. that still seems rather large to me for the purpose of being a walking skeleton.

my question is:
what system files, be it libraries, binaries, fonts, etc etc etc can be straight up deleted without breaking cell, Bluetooth, Wi-Fi, Google Play, web browser (any), or any absolutely necessary core functionality? I want to butcher this rom.


问:
What can I do with my Samsung Gear 2 Neo? - I have a Nexus 5X & Samsung Tab S2 9.7
A while back I got a Samsung Gear 2 Neo, when I had a Galaxy device to pair it with.

Unfortunately, my phone got stolen.

I waited for the Nexus 5X to be my replacement phone and also got a Samsung Tab S2 9.7.

I was surprised that the Gear 2 Neo is not supported by the very recent Tab S2 9.7. It still makes no sense. The Gear Manager doesn't even install.

So my Gear 2 Neo is just sitting and still new.

How can I use of it? It seems such a waste and rather insincere that Samsung does not support the Gear 2 Neo on even recent devices.


问:
Archos 50 Power does not recognise external storage
I recently bought the Archos 50 Power however I sent it back after it appeared to be faulty. Today the new one came, however, the exact same problem is occurring. I have an SD card that I used in my Samsung Galaxy 4 and it worked fine. I then formatted it and placed it inside my new phone. The phone can see the SD card.

When I go to try and move any data, such as google play music downloads or photos from the camera app, to the SD card the apps cannot see the SD card.

The interesting thing is when I placed my SD card back in my old phone, put my google play offline on the SD card, then replaced it inside my new phone the google play music app could see the SD card. All the other apps could still not see it. I would appreciate any help in fixing this problem as I have never encountered it before now.


问:
How to re-partition MT6582 device? (EBR1 & MBR only available) (Infinix X507)
How could I re-partition my MT6582 device: Infinix Hot X507's Internal Storage (also known as Apps Storage Partition, System Storage) in order to expand it (it's about 1.04GB now, and only 3MB are free)?

I don't want to use Link2SD, just Internal Storage disk re-partitioning.

The stock ROM for my device has only the files EBR1 & MBR (So the device seems not to be EBR1 & EBR2 type).

The guides I have found are for the EBR1 & EBR2 type (not the EBR1 & MBR one) (examples: guide 1, guide 2).

You can find the EBR1, MBR and Scatter files here, pulled from ROM X507-D5120-L-20150923 Final (ROM info), currently installed Lollipop ROM on my phone.

I need to know how could I modify the both files in order to re-partition my Internal storage.


问:
Resize Android screen resolution at top and bottom because of dead zones
I need to resize and move my Android screen in order to be able to use the drop-down notification bar since the top and bottom parts of the screen are dead.

I was able to work with bottom buttons (back, home, recents) after using:

```<code>wm overscan [reset|LEFT,TOP,RIGHT,BOTTOM]
wm density [reset|DENSITY]
</code>```

as described in this existing question. This worked for the bottom dead zone, but not for the top. I'm still not able to use the notification bar by swiping down from the top. Is there any way to resize the area of effect of the notif. bar to achieve this or anything similar?

My screen resolution is 720x1280 - 320 dpi. It's a Sony Xperia Z3C.


问:
why I cannot remount the /system as rw?
I got a device with Stock ROM with android 4.2.2 without root yet. I got into adb shell with #. I successfully did 'mount -o rw,remount /'. However, when I try to do 'mount -o rw,remount /system'. It said read-only filesystem. In mount I can see theemmc@android mounted at /system as ext4, which is actually a device called /dev/block/mmcblk0p5.

```<code>/emmc@android /system ext4 ro,relatime,noauto_da_alloc,commit=1,data=ordered 0 0
</code>```

Here is its tune2fs result:

```<code> # tune2fs -l /dev/block/mmcblk0p5
 tune2fs 1.41.14 (22-Dec-2010)
 Filesystem volume name:   <none>
 Last mounted on:          /system
 Filesystem UUID:          57f8f4bc-abf4-0000-675f-946fc0f9f25b
 Filesystem magic number:  0xEF53
 Filesystem revision #:    1 (dynamic)
 Filesystem features:      has_journal resize_inode filetype needs_recovery extent sparse_super large_file
 Filesystem flags:         unsigned_directory_hash
 Default mount options:    (none)
 Filesystem state:         clean with errors
 Errors behavior:          Remount read-only
 Filesystem OS type:       Linux
 Inode count:              44802
 Block count:              179194
 Reserved block count:     0
 Free blocks:              40901
 Free inodes:              43179
 First block:              0
 Block size:               4096
 Fragment size:            4096
 Reserved GDT blocks:      47
 Blocks per group:         32768
 Fragments per group:      32768
 Inodes per group:         7467
 Inode blocks per group:   467
 Last mount time:          Fri Oct 21 04:11:22 2016
 Last write time:          Sat Oct 15 19:28:31 2016
 Mount count:              49
 Maximum mount count:      -1
 Last checked:             Wed Jul 20 19:51:30 2016
 Check interval:           0 (<none>)
 Lifetime writes:          94 MB
 Reserved blocks uid:      0 (user root)
 Reserved blocks gid:      0 (group root)
 First inode:              11
 Inode size:               256
 Required extra isize:     28
 Desired extra isize:      28
 Journal inode:            8
 Default directory hash:   tea
 Journal backup:           inode blocks
 FS Error count:           5
 First error time:         Fri Oct 21 04:11:24 2016
 First error function:     ext4_init_inode_table
 First error line #:       1156
 First error inode #:      0
 First error block #:      0
 Last error time:          Fri Oct 21 04:28:29 2016
 Last error function:      ext4_remount
 Last error line #:        4269
 Last error inode #:       0
 Last error block #:       0
</code>```

It has 5 errors which probably my attempt to do remount. I try to boot into recovery mode. But it does not have adb access. So I cannot do e2fsck. Any suggestion about what should I try to get it mount as rw?

Title: why I cannot remount the /system as rw?


问:
Battery LED keeps on if decrypted while charging
tl;dr If an encrypted phone is decrypted while charging, the battery LED will keeps on, even after disconnecting charging cable/change setting/soft reboot.

Device: Samsung Galaxy S4 LTE (GT-I9505) running CM13 snapshot 20160820

I have wiped the system+data+cache partitions of my S4 and flashed CM13 rom. Default setting is to have battery LED on while charging. I disabled this in Settings. No LED on during charging. That's what I want.

Then I set up device encryption (Settings -> Security -> Encrypt Phone). Afterwards, I disconnected the charger, reboot, and enter my password to decrypt the phone. Then I connected the charger again. Still no LED on. (Normal)

Then I reboot the device again. Before decrypting the phone I connected it to charger. The battery LED is now on with green colour.  I guess it's due to my settings being encrypted, and the default of "LED on while charging" is applied.

But when I decrypted my phone while charging, the LED keeps on even after the lock screen is shown, or when it is unlocked to launcher. I disconnected the charger, putting the device in non-charging status. The battery LED is still on with green light without charging.

I tried repeatedly (dis)connecting charger, turning LED on/off in Settings, and even soft reboot. The charging LED still shines on. The only way I managed to get the LED off is to shutdown/regular reboot the device.

Further experiment shows that this problem appears only when I press enter (after entering password) to decrypt my phone while charging. The phone is normal (LED off) if I enter my password while charging, disconnect the charger, and press enter to decrypt the phone.

Question: Is there any way to decrypt the phone while charging, and still keep the battery LED off?


问:
Can emails be filtered by GMail (or something else) for an IMAP account into a folder?
I have an IMAP email account that receives daily emails from a cron process on a regular basis. I currently use GMail to read this account from my Android device. Is there a way for the GMail application to automatically filter emails to place them in an IMAP folder so I do not receive notifications for this every time a cron email arrives in the inbox?

I have Thunderbird setup on my laptop to automatically move the emails from the cron job to a folder. I would like to do something similar to my Android mail client.

I am interested in solutions for Android 4.4, Android 5, and Android 7.


问:
Is it possible to limit power supplied by host connected with OTG cable?
Is it possible, to lower the power that is supplied to the devices through the OTG Cable by messing around with the host?
My Galaxy S3 is the host and this connection is draining battery well to fast, the device has it's own source of power but I can't disable the drain on this side.</p>


问:
My google play store is not working.
it shows no internet connection whereas the mobile is connected to the internet.
i tried to reboot the mobile yet the problem remains. my mobile is rooted . it was rooted before 1.5 years but the problem started 1 month before.</p>

Title: My google play store is not working.


问:
Can we run android os completely from RAM?
I asked this question on Stack Overflow but got no response and I'm not sure if this is the right place to ask this question... but anyways here goes -

Is it possible to run Android completely from RAM?

Seeing as some smartphones these days have almost 4GB of RAM, is it possible to run at least older android versions or some other lightweight linux OS completely from RAM?

If yes, what are the limitations?


问:
Haptic feedback turns on only when I insert the jack... why?
My phone (Galaxy S II) is behaving in a rather strange way: haptive feedback seems not to work even when the battery is full, the "haptic feedback" checkbox is checked and the phone has been rebooted several times. The most strange thing is that haptic feedbeck turns on again when the earphones jack is plugged in(!) and turns off when I remove the jack. Is there any chance thant I will ever have my haptive feedback back unconditionally? Any suggestion? Thank you very much...</p>


问:
Samsung S7 can't access mobile networks
This is my father's phone and he went overseas to travel. During his travel he wanted to unlock his phone so he went to some shady area and they apparently rooted his phone but messed up somewhere. They told him to reinstall the firmware and it will be good. Unfortunately that isn't the solution and I have no clue what is the problem.

The mobile networks always has the cross symbol and no option for it exists in the settings. This prevented me from accessing the APN settings, but then after searching for that I managed to get access to it. However, it won't let me create any new APN and there exists none other, giving me the error that this user cannot change the APN settings. No number could be dialed and gives another error that there are no mobile networks. Removing the SIM and trying another SIM does nothing at all.

I then got a firmware from sammobile with the same network as the phone, Koodo 6.0.1 and installed that. The problem still persists and I have run out of ideas and solutions on what to do. Any help would be appreciated.

Title: Samsung S7 can't access mobile networks


问:
error: device unauthorized. Please check the confirmation dialog on your device
Is it possible to authorize the device while it's in Recovery Mode (Stock Recovery)?

My device has Marshmallow 6.0 and is authorized in normal boot mode, but unfortunately, it can't be authorized when reboot to recovery.

When i type in Recovery

```<code>adb shell
</code>```

it keeps saying:

```<code>error: device unauthorized. Please check the confirmation dialog on your device.
</code>```

there is an option in recovery menu called "Mount System", and I want to use adb in order to delete some system apps maybe!


问:
WiFi Disconnecting (Special Issue)
I could not afford my Internet this month, it has happened before, but I am turning it back on next week.

Anyways, so on my PC (which is connected to the Internet via Ethernet), the Internet works but blocks websites obviously since I didn't pay the bill, but if I use SSH tunneling, or use a VPN I can reroute the web traffic and visit any website I want.

On my laptop, which uses WiFi, I can do the exact same thing...

Now on my Android device (Galaxy S4), when connecting it says "Sign In Required" or something, and when I click Chrome to sign in, it just goes to Google and stuff, and every other site is blocked as expected. I can use a VPN like Betternet to unlock the other sites like I would on my computer. However, the WiFi on my Android disconnects every 3 or 4 minutes, whether I use a VPN or not, and I am not sure why this happens exclusively to my Android, and not any other device such as my laptop.

Any ideas on what is happening? Any router changes I can do, any Android changes I can do?

Title: WiFi Disconnecting (Special Issue)


问:
How do I add another keyboards into Remix OS (Vietnam, Cambodia, Thailand Keyboards)
I have a problem which are I cannot add another keyboards namely, Vietnam, Cambodia and Thailand. I cannot change the Keyboard from English language to Vietnam, Cambodia and Thailand languages.
I have tried Khmer Smart Keyboard, Cambodia Keyboard APK and Phum Keyboard for Cambodia keyboard;
Keyboard ManMan, Gadgetdoor Thai Keyboard, Thai Gingerbread KB and Thai Pack Without ALM97774503 for Thailand keyboard.

My host OS is Windows 7. I use VM-ware player to run Remix OS and Remix OS is marshmallow.
How do I add another keyboards into Remix OS please?

Kindly please help me out. Any suggestion, I would appreciate it.


问:
Getting and error saying "unfortunately, Google Play store has stopped" ..please anyone help
I have done everything I could do -

Reset app preferences

Clear data/cache and uninstalled updates

Remove google accounts

And even Factory Reset.

But its still not working.

I have a Coolpad note 3, with Lollipop.


问:
Auto-repeat "unread SMS message" notification sound
I'm about to replace my "dumb" old mobile phone with an HTC One M8, but (initially, at least) there are likely to be days when I never even think about using it.

My old phone was set to beep once a minute until I activated it to read any messages, which was good because if someone sent me a text overnight I'd be repeatedly reminded to look at it when I got up next day (I don't normally take my phone to bed).

On the downside, if someone else gets up before me they have to put up with the phone constantly beeping (or invade my privacy by activating the phone, or bury it under cushions, or whatever! :)

I've lived with that imperfect solution for some years now, but I was kinda hoping for a way to give me much more control. What I'd really like is the ability to make my phone raise an audio alert every minute initially, with the time interval between alerts gradually increasing so it's maybe only every hour or two after a while.

Well, if we're talking about what I really, really want, obviously I don't want a beep at all - I want a way to recognise who sent the text, and to synthesise voice output saying they've texted me.

Anyway, that's the gist of what I'm after. Am I likely to be able to find anything good?


问:
Android communication sync keeps installing itself
My Android 4.4 based phone somehow gets 'Android communication sync' program which can be removed from downloaded apps.

This program shows fullscreen ads whenever I unlock phone.

My phone is rooted.

I install apps only from Play Market (few of them, only popular programs) and can not understand how it can be installed by itself (which app can do this).

I uninstall it and later (after week/month) in the morning it is installed again (it was not installed in the evening).


问:
Infinite boot animation screen Nexus 5
**
SO I AM RENDERING THIS NEXUS 5 DEAD (BRICKED FOREVER)

My daughter was using this Nexus 5 device and the power button started causing her problems.
Well I removed the power button and ordered a new one. So now the power button is not an issue.
But I guess during the time that the phone constantly kept rebooting due to the bad power button, something got corrupt.
Now the device gets to the boot animation and never goes any further.
There are no options in recovery for me to use.
I have working ADB and Fastboot on my PC. I can see the device with Fastboot but not ADB because I can't get the device to boot into the OS for me to enable USB debug.
But I know ADB works because I used it just the other day on a Galaxy S5.

I have tried to run fastboot oem unlock, it unlocks the device then once you reboot the boot loader, it says locked again.
I have tried using Nexus Root Toolkit and hit unlock and it unlocks then says the phone will reset itself and just be patient. It may appear to bootloop but just wait.
I waited for an hour and still just sits at the boot animation.

What are my options without being able to enable USB debug since the device will not boot to the OS?

I am able to Temporarily boot to a custom recovery, but I can't mount data!!!
With Temporary TWRP, I am able to use ADB and I get a success message when I push a new system image to it, and when I push twrp recovery to it, but when the phone reboots, I find out that neither the system image or recovery were actually installed.

I looked into bad partitions, tried some fixes, and nothing works. I am so far beyond frustrated with this thing. I guess I will wait one more day to see if anyone else has any other ideas for me to try, then I am just going to put it in the trash.

Bootloop

Bootloader doesn't stay unlocked

Unable to mount storage

USB Debugging is not enabled and can't be enabled

Can't install OS image

Can't install Recovery

Can run TWRP temporary

Can use ADB when TWRP Temporary is running, still can't mount anything

Title: Infinite boot animation screen Nexus 5


问:
where/how to find/extract official android os (open source) translation/localization/glossary
Since the open source android (https://source.android.com) is available in multiple languages, can I extract all the translated strings in the OS so I can use them as a reference for my own app's translation? (for example for error messages...)

Or is this list available somewhere?

Probably harder to get, but I'd also like to ask the same question for the official non-open source version...

Thanks!


问:
andriod wifi dhcp problem: trying to solve via restoring a modified backup
It's not the first time this problem is listed. Suddenly connecting to any wireless networks fails by getting stuck on obtaining IP address. This happened after I enabled airplane mode for the first time. I enabled wifi while in airplane mode (shouldn't be possible right?), realised I was still in airplane mode and disabled it. This broke the wifi, I'd guess the DHCP.

A workaround is using a static IP, this still works. A solution is a factory reset, this solves the problem. I backed up before this, restoring the backup also restores the problem. I'd like to find an actual fix and not install and configure everything again.

So I made a backup of a fresh factory reset system and I have the backup of my own system. By using this:

```<code>dd if=userdata_xxxxxxxx_yyyyyy.backup bs=512 skip=1 | gunzip -c | tar xv
</code>```

from here
How to extract .backup files created by android stock recovery?
I can read the content of the backup of my broken system.

So to solve the issue I need this:

to find the files responsible for the wifi mess and replace them

reverse the extraction process

I can make resonable guesses about both but help is needed. For the first I would guess this:

```<code> find . | grep dhcp
./misc/dhcp
./misc/dhcp/dhcpcd-wlan0.pid
./misc/dhcp/dhcpcd-wlan0.lease
./misc/dhcp/dhcp6c_duid
</code>```

As per here:
https://thealarmclocksixam.com/2013/10/26/dhcp-failure-on-android-wifi-stuck-on-obtaining-ip-address-how-i-solved-it/

And maybe these

```<code>find . | grep wifi
./data/com.asus.wifidirect
./data/com.asus.wifidirect/cache
./data/com.asus.wifidirect/cache/com.android.renderscript.cache
./data/com.asus.wifidirect/shared_prefs
./data/com.asus.wifidirect/shared_prefs/wifidirect_SharedPreferences.xml
./data/com.asus.wifidirect/lib
./misc/wifi
./misc/wifi/sockets
./misc/wifi/softap.conf
./misc/wifi/p2p_supplicant.conf
./misc/wifi/wpa_supplicant.conf
./misc/wifi/entropy.bin
./misc/wifi/ipconfig.txt
</code>```

Simply replacing those directories would be worth a try

The second problem: first creating a tar, applying gunzip in the correct way and then using dd or cat to add the first 512 bytes header. I'm no hero with shell commands, I nearly always understand what I'm doing but coming up with them is different.
I'd guess something like

```<code>tar -czvf userdata.tar.gz *
</code>```

Should do the complete trick for the packing.

```<code>dd if=userdata_20161009_165440.backup bs=512 count=1 of=userdata_header
</code>```

Should give me a header out of the original file

```<code>cat userdata_header userdata.tar.gz > userdata.backup
</code>```

Should finish the process

If this works it may be a solution to a common problem that doesn't require rooting the device or living with a static ip workaround. All went well so far but when I tried to restore my home made backup file I get:

```<code>error: checksum compare failed
</code>```

Which makes be suspect the header is actually a checksum, but I have no experience with those. Can anyone give me suggestions? If I can determine how the header is a valid checksum I can then try to make my own for my custom backup


问:
PhilZ Touch 5 problem
I am trying to root my phone through PhilZ Touch 5 but I am getting this error.

Finding update package...

Opening update package...

Installing update...

Installation aborted.

press any key to continue.

I have a Samsung Galaxy S3 Mini VE running Android 4.2.2, with PhilZ Touch 5.

Title: PhilZ Touch 5 problem


问:
Loop device possible on Android 2.1 Hero?
I'm trying to get Ubunto running on my Android after failing with Debian.

I couldn't mount the image. Now the Ubunto Tutorial says that the phone must support loop devices. How can I figure that out, or can anybody give my a yes or no? Thanks

EDIT: I already tried CM7, SalsaSense and some other one that looked very similar to CM7 but I forgot the name... CM7 extra stated that it supports loop devices but it fails on my hero. Could it be that there is some hardware issue that even the right ROM can't fix?


问:
Can I turn off notifications for multiple apps at the same time?
I have many, many dozens of apps installed and hate the bother, distraction and inconvenience of notifications. I want notifications on for a very small number of apps that I'm willing to interrupt myself for. Is there a way to select multiple apps to disable notifications for all of them at the same time, ie a bulk action? It seems to take many seconds to turn off notifications for each one separately.</p>


问:
Any way to format external sd card as FAT?
I've been searching on Google to find a way to format an external sd card in FAT file format, but I didn't find anything. Every links were asking for FAT32 or EXT4.

I use AndroidM. Recovery is TWRP 3.0.2-0 (if my memory's good).

I don't have any computer, so that's why I'm trying to do it on my phone.

Thanks in advance.

Update: my device is rooted.


问:
Frequent configuration messages on Samsung J5
I am getting some configuration messages frequently and have no idea what it is. How can I prevent it?
Any help would be appreciated.


问:
Does Cyanogenmod 13 support APT-X (on my Moto G)
just a short question. Does CM13 have APT-X support built in? For my moto g, it has from stock (as it's website reads), and now I'm wondering if Cyanogenmod has it too, because its proprietary and has to be built into the bluetooth stack afaik (so, no ordinary codec).

Thanks :)


问:
Internal Storage issues
I have a Motorola Moto E2 phone. The product info page shows it comes with 8GB of internal storage, but I am only seeing 5GB of space when I look at it through my USB connection.

Every app that can move has been moved to my 16GB SD card.

The only thing that I cannot move are the Android updates and the data from my Text conversations.

I cannot stop the Android updates, and I need the Text history for legal issues.

How do I stop this phone from running out of space? I have had it for only 6-months.

Title: Internal Storage issues


问:
Turn off notice sound
I keep on getting audio notice alerts when the apps alerts me on posters updates; where do I go to keep the notice alerts silent?</p>

Title: Turn off notice sound


问:
Can't mount /system as RW
I own an old Motorola XT910  that has several malwares, so I'm trying to delete them from the /system/app folder (since they're set as system apps), but when I try to mount the system as read-write, via adb shell I get Invalid argument. I've tried many commands but no success. Anyone knows how this can be done?
What I've tried:

```<code>adb shell
su
mount -o remount , rw /system
mount rw, remount rw /system
mount -o rw,remount /system
</code>```

The phone runs Android 4.1.2, rooted, BusyBox installed

Title: Can't mount /system as RW


问:
Samsung Galaxy S7 Edge Gallery not showing external storage images and videos?
Prior to move my images and videos to External Storage via File Manager, I was still able to see them in Gallery, but not after I have moved all.

How to enable Gallery, to show my External Storage images and videos?


问:
How to run a script on USB OTG Drive?
First up - I do not have any experience at all with programming in Android or Linux environments. So, very sorry if this question sounds stupid. Here is what I am looking for:

I use a USB drive in my car for music and I transfer files to this drive from my mobile using an OTG cable. There are around 600+ files in it and the music player in the car just randomly plays them. Problem is, since there are so many files, the player seldom plays the newly added ones.

Hence I was wondering if it would be possible to write a script for this - like a batch script or VBSript in Windows. When run, it would copy the latest 20 or so files, based on the date modified, to some folder, say "New". The script would be placed on the drive, preferably, and next time it is run, it would clear the existing folder and copy fresh files again.

Would this be possible?

Model: OnePlus One Android Version: 6.0.1 Cyanogen OS: 13.1.2

Title: How to run a script on USB OTG Drive?


问:
Control Dual Sim Mobile Data
I recently purchased a ChatSim card (Chatsim mobile data is for specific messaging apps such as Messenger, Whatsapp, etc.) and they will lock your account if you use mobile data on other apps.

I have a ONEPlus 2 running android 6.0.1, OxygenOS 3.1.0 with a dual sim cards.

So here is what I want to do:

I would like to set only specific apps to use the Chatsim mobile data and have all other apps use my other sim cards mobile data.

Is there a way to control this with android system?

Is there an app to control this?

Title: Control Dual Sim Mobile Data


问:
Forgotten Pattern/Pass Lock on Android
How to remove pattern/pass lock from an android device if the USB Debugging is off and Recovery Mode is inaccessible and it doesn't have a Gmail account?

It's a Chinese Tablet

Name & Model: Eken E902

Build Number: astar_m900-eng 4.4.2 KVT49L 20160322 test-keys

Kernel Version: 3.4.39

Firmware is exdroid4.4.2_r2-a33-v2.1

O/S version is Kitkat 4.4..2

Title: Forgotten Pattern/Pass Lock on Android


问:
Auto start an "add to homepage" link on desktop
Is there a way to have a link created via Chrome's "add to homepage" auto start on bootup?

I've tried apps that allow you to set this up, but they don't work because the link I am trying to open is not recognized as an app.


问:
Why does my device keep crashing into boot loop?
I have tried several 'solutions' for resolving boot loop issues.

My MT6582 keeps crashing. Every 2-5 days, I have to re-flash the stock ROM and start all over again. I've tried different scatter files and using SP Flash Tool to flash them to the phone but the tool either gives me an error or the phone boots back into boot loop.

I've tried:

MTK droid Tools, Mobile Uncle, MagicBox, TWRP, CWM, PHILZ...following all of the tutorials and guides to the letter but, so far, nothing has worked...

Sideload.

Creating a custom ROM using kitchen.

If there's a 'possible fix' out there on the web, I think I've tried it.

Can someone help me with this problem? I'm sick of flashing my phone and reloading all the apps, setting preferences and then having it crash! At the very least, I should be able to create a scatter file that has my apps, userdata and preferences that I can flash when needed.  (Teach me how to do that!)

The phone is a Blu Studio 5.0 C HD (Mediatek 6582) with KitKat 4.4.2


问:
Launch Browser from Android's Captive Portal Login
I've configured a Raspberry Pi as a Wifi hotspot and web server. What I'm trying to do is get the user's phone to automatically open a web browser when they connect to it. There is no Internet connection.

I setup a redirect for /generate_204 so that the "Sign-in to Wifi" notification appears when someone connects. When they tap the notification, they are taken to a webpage in the CaptivePortalLogin. The functionality of the captive portal is limited as it doesn't seem to store session information, allow the user to download files, etc. Even if /generate_204 returns a 204 response, it seems the captive portal just closes and no web browser is launched.

Is there anyway to launch a browser instead of the captive portal when a user connects to a Wifi network? Or is there a way to launch a browser once the captive portal has been opened?

Thanks for any ideas about this.


问:
Stream audio from external hardware to android phone via USB
What I have done till now

I am able to connect an external hardware to my android device via USB.

After detection of external hardware, I am establishing an USB connection.

After connection I am able to read/write data through app.

Now what I need is to stream FM modulated audio to android device speaker and audio port.

Does android automatically does it for us, as we do stream music over BT headset using A2DP profile or we need to create some sort of player and enable some functions of device ?

After going through multiple docs and android developer site itself, I come upto AOA2 protocol that allows android device to stream audio to its attached accessories via USB.

As per the docs an Android device can't act as USB speakers.

Is there any alternative way we can make an Android device as USB speakers for any external Hardware.

Any help is appreciated.


问:
can't push file to system/bin using adb in android 5.1
Using adb push file to /system/bin return read-only file permission

If i changed mode returns the same error

I'm trying to push su to /system/bin, why it fails on 5.1, and seems to work on older versions (based on reading through forums)?


问:
How To Fix Android 5.0.2 Recognition issue with Windows 10?
I have an issue with Android lollipop (5.0.2) and Windows 10. The Windows 10 computer doesn't recognize the Phone. I tried to install the driver manually, I tried to uses another cable and I tried to edit Windows configurations but nothing seems to work. I can not debug any application and I cant even copy the files from the SD card. Any one have any suggestion . Thank You.


问:
TWRP Won't Flash Over CyanogenMod Recovery - Unable To Install Gapps
I'm running Ubuntu 16.04 LTS flashing a Samsung Galaxy S2 i9100 using Heimdall

I installed CyanogenMod using CWM, but it failed to install gapps. CM13 overwrote CWM and it's been impossible to flash TWRP over it. As far as I know, I need TWRP to install gapps, and I need it to use any apps on my phone.

The flashing of TWRP goes perfectly well on my computer and phone, according to what output it gives me, however there is no change of recovery. Everything is the exact same as it was before flashing.

I've turned off CM recovery updates and ADB sideload won't install the gapps zip file.


问:
How to add time to "wait" command in tasker
I am pretty new to tasker app and I am trying to create a profile to turn off music after 30 minutes. So I did this:

```<code>Profile: App (Music)

Task: MusicAutoOff

T1: Notify

* Title: Music Auto Off

* Actions A1: Wait 5 minutes, A2: Wait 30 minutes

T2: Wait 30 minutes

T3: Media Control

* Cmd: Pause

* Simulate Media Button: On

* App: Music

T4: Notify

* Music Turned Off
</code>```

And all I want to do is wait additional 5mins/30mins before executing next commands when I press those action buttons on notification. How can I do this?
Any help would be appreciated.
Thanks in advance.

UPDATE:
Tasker XML Project File Added for reference: MusicAutoOff.xml

SCREENSHOTS:


问:
Image thumbnail shows in camera, deleted in gallery?
I abhor this.

I had this issue on my Samsung Galaxy S3 where I would take a lot of pictures, it would show the thumbnail of the picture taken in the lower-right square linking to the gallery (so I was assured it was taking my photos). However, when I opened the gallery, my pictures were not there. I lost a whole roadtrip of photos and it turned out that the SanDisk external SD card put itself into read-only mode and I had to send it in to get it replaced.

However, now I'm on my Samsung Galaxy S7 and I took a picture today that's not showing up in the gallery. This time my external SD card is a Samsung chip. I can't reproduce the issue, but is there any way to make sure it isn't my external SD card? Or could it be a camera setting where it's only taking a temporary photo?


问:
motog 3rd gen, since update , tells me ui has stop working
ever since I updated to marshmallow, I was getting SIM CARD ERROR, now I get
the UI has stop working to you want to wait?</p>


问:
Cannot hear my notification sound on my Samsung Galaxy On5?
Okay, so I got my new phone (A Samsung Galaxy On5) about 2 months ago, and just recently, the notification sound stopped working. I checked to make sure that it wasn't on silent or vibrate, and it's not. The sound is on, and ringtone is on too, but ringtone is the call sound. Instead of emitting a sound for my notification, it just vibrates. I've tried powering it down and back on again, but nothing seems to work. Help?</p>


问:
Syncronizing audio and ebook?
So the actual problem that I'm trying to solve is to read books via TTS on my phone and also read the same book as text at the same place.

Every ebook reader I've tried that does this sucks in various ways; I'll name them just to save y'all the trouble of suggesting them unless they've improved dramatically in the last few months: Moon Reader + Pro, Voice Dream (AKA "Reader" (really?)), FBReader TTS, @Voice.

The other thing is that running TTS seems to take some noticeable battery/CPU.

So I thought why not do the TTS in advance, save it as an audio file, read it in Pocket Cast, and have an ebook program be synchronized to the position I'm at in the audio file?  I mean, there are programs that sync an ebook with an Audible file, right?  Same thing, right?

The thing is, AFAICT the only thing that does this is Kindle/Whispersync.  I can't figure out how to take advantage of this; seems like I could provide my own audio file to go with Kindle books, but do the Kindle books need to be specially marked?  Does the audio file?

Maybe there are other apps or combinations of apps that can do this?

I'm highly technical, and while I've not programmed against Android I've programmed in perhaps 20 languages over my life and I'm sure I can figure it out, so writing actual code is an an option, but I have no idea where to begin; any thoughts?

Title: Syncronizing audio and ebook?


问:
Unable to connect to SSH server via Tor
I'm attempting to connect to my SSH server via Tor on my rooted Android.

I couldn't find an SSH client for Android that supports the use of a SOCKS proxy, so I tried to use transparent proxying with Orbot for a number of SSH clients.

So far I've tested JuiceSSH and Serverauditor.

JuiceSSH seemed to have issues with my private key for SSH and Serverauditor just reported that the connection failed.

SSH via Tor works fine on my computer.

edit: I've manged to get the private/public key thing working with JuiceSSH and I've also tried to use ProxyDroid (can't hyperlink due to low reputation) to proxy all system traffic through Tor (SOCKS5, 127.0.0.1:9050).

JuiceSSH now keeps trying to connect but doesn't get much further. Serverauditor still just very briefly tries, then reports that the connection failed.

How can I connect to my SSH server via Tor, using private/public key authentication?

Title: Unable to connect to SSH server via Tor


问:
My android phone is showing up in my computer just as if it's a normal hard disk
Most of my android phones have once been so. I can see the internal eMMC's partition layout in "Windows Disk Management", counting there's over 20 parts. Some partitions have letters in "My Computer". The phone also appears as /dev/sdb in Ubuntu and I can access /data, /system and other ext4 partitions as normal. fdisk and parted can correctly recognize them and even modify them. Everything just acts like a plain hard disk. adb and fastboot have no response on these phones. However I can't reproduce this situation nor can I kick it out for sure (One of them got kicked back to normal accidentally). Can anyone tell me what's this special mode?

Note: All these phones that have this issue are equipped with Qualcomm Snapdragon SoCs (I don't own MTK phones), namely S200, S410, S800 and S810.

Edit

Successfully got that S800 phone (nubia Z5S NX503A) again in the state described above. My operation is to first get the phone in fastboot (bootloader) mode and then, while holding BOTH volume keys down, press and hold the power button for 10 sec. Now the phone is here.

```
root@ubuntu:/dev# <b>parted sdd</b>
GNU Parted 3.2
Using /dev/sdd
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) <b>print</b>
Model: Qualcomm MMC Storage (scsi)
Disk /dev/sdd: 31.3GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number  Start   End     Size    File system  Name      Flags
 1      67.1MB  134MB   67.1MB  fat16        modem     msftdata
 2      134MB   135MB   524kB                sbl1
 3      135MB   135MB   32.8kB               dbi
 4      201MB   201MB   32.8kB               DDR
 5      268MB   269MB   524kB                aboot
 6      269MB   269MB   512kB                rpm
 7      336MB   346MB   10.5MB               boot
 8      403MB   403MB   512kB                tz
 9      403MB   404MB   1049kB               pad       msftdata
10      404MB   406MB   1573kB               modemst1
11      406MB   407MB   1573kB               modemst2
12      407MB   408MB   1049kB               misc
13      408MB   419MB   10.5MB               splash
14      470MB   1758MB  1288MB  ext4         system    msftdata
15      1758MB  10.4GB  8616MB  ext2         userdata  msftdata
16      10.4GB  10.4GB  5243kB  ext4         persist   msftdata
17      10.4GB  10.9GB  524MB   ext4         cache     msftdata
18      10.9GB  11.1GB  157MB   ext4         customfs  msftdata
19      11.1GB  11.1GB  10.5MB               recovery
20      11.1GB  11.1GB  1573kB               fsg
21      11.1GB  11.1GB  1024B                fsc
22      11.1GB  11.1GB  8192B                ssd
23      11.1GB  31.3GB  20.1GB  fat32        grow      msftdata
(parted) <b>quit</b>
```


问:
Note 5 Android 6.0.1, photo import Windows, PTP does not limit folder access to camera photos
I have a Note 5 running Android 6.0.1 when I try to import photos using Photos in Windows 10 it finds all of the image files on the phone.  This is not affect by choosing PTP or MTP in the USB settings on the phone.  Trying on different PC running Windows 7 has the same result.  To me this seems like an issue with the USB Setting on the phone for PTP not limiting the PC's access to only the photo folder.  It seems like I have not had this issue in the past unless I'm completely "mis-remembering".
I've seen this question asked before but the only solution seems to be to manually move over photos using windows explorer.  Is this really the only solution?  By not using the photo import option on Windows you are loosing the ability to auto-rotate, easily organize folders, name files, and only sync new images, to name a few.
I would really appreciate any help anyone has on this.

Thank you.


问:
Lollipop boots only in recovery
I am using a Lenovo p70 phone with custom aosp 5.1 arm64 based rom! I am using TWRP recovery. Until today i had no problems with the recovery.
Today i rebooted my phone in recovery by typing reboot recovery in terminal emulator. Now everytime i try to boot my phone it boots only in recovery.
So now i can't boot my android os anymore.

P.S It also boots in recovery when i use adb shell reboot or adb shell reboot recovery. adb shell reboot bootloader still works as it intended.

Can anyone help?

P.S2 I found a file which tries to fix this problem, but targets android ics so i don't think it will help.

Title: Lollipop boots only in recovery


问:
How take a screenshot without rooting the phone?
Disable Screenshot Security implies that I must root my device in order to bypass this unreasonable restriction. I have many use cases where I need to take screenshots for normal,  non-nefarious reasons, yet it seems that I am prevented from doing so by some particuler application provider.

How do I avoid this restriction without rooting my phone?

References:

The following sums up my situation and hardware configuration to the letter:
http://www.netdip.com/unable-capture-screenshot-1464017054/


问:
How to never allow any kind of apps installation?
i have a galaxy tabs 10.1 which i gave to my brother. the problem is he keep installing app whether its a playstore apps or from unknown source apps. this makes the tab very slow. im too lazy too find out what makes the tab slow. so usually i just reformat the tab. and then he keep installing stuff again. and the process repeated again and again. is it possible for me to just install a few common stuff like facebook app, whatsapp etc and some few games and then restrict the device from installing any kind of app whether it is from playstore or unknown source. he knows how to turn on the "install from unknown source" things. so by just turning the feature off will not stop him. please kindly help me. thanks</p>


问:
Install CA Certifcate using ADB?
I'm in an annoying chicken-and-the-egg loop. Android Browser (the stock browser) is rejecting a bunch of sites certified by Comodo certificate authority. I'm on Comodo's site trying to download their AddTrust External CA Root, but I'm not getting the prompts to allow the download. The download never completes.

I want to try a sidestep the Android Browser problems by installing the CA root certificate in the certifcate store over a tether using ADB. Unfortunately, I can't find the ADB commands to do it:

```<code>$ adb --help 2>&1 | grep -i cert
$
</code>```

How do I use ADB to install the damn certificate?

If I can't use ADB, then what tool does Android provide to install one?

The phone is a Samsung Galaxy S4 with Android 5.0.1. It is stock and not rooted.

I'm familiar with Add & remove certificates from Google Help and How to install trusted CA certificate on Android device?. The Stack Overflow question is old, and it predates ICS where the store changed.

Title: Install CA Certifcate using ADB?


问:
OnePlus one constantly freezes and ends up crashing
Ever since this morning my OnePlus one suddenly freezes constantly, refuses to open certain apps (for instance, WhatsApp works but Facebook doesn't), crash whatever apps do work and if left alone it will just crash the system ui and leave me with a black screen, forcing me to reboot every five minutes or so.

I think it has to do with some buggy update that my phone did overnight, but I can't find the cause of the problem. These are the specs of my phone:

OS + version: OxygenOS 2.1.4

Android version: 5.1.1

If someone could tell me if this is a known bug or if there's a workaround, it would be very much appreciated. Thank you


问:
Can't Download Apps on Restricted Automobile Android
I just got a new Renault Fluence (basically a Megane Coupe) with an Android entertainment system. It seems to be basically the Kaier System http://www.szkaier.com/show_imgnews.asp?id=537 modified by the local importer and it includes a sim card with WAZE for navigation.

The problem is that I'd like to install a few more apps. There is (naturally) no Google Play Store, installation of unknown sources is unchecked and requires a (numeric) password, ES file explorer is installed but any app that offer to let me register with my Google account is automatically blocked by redirecting to Waze (probably some trick to make sure we don't download apps using our Google accounts.

Simple attempts at guessing the "unknown sources" (numeric) password were unsuccessful.
It seems that I can connect the wifi to any wifi source. (Connection to the sim card is via wifi for some odd reason.)
I have no access to any buttons on the phone (without taking the dash apart) and the one full size USB seems to be open for music only.

Any ideas would be appreciated.

Thanks


问:
Nexus 5x won't use 3G since Android 7.0
Since I lost my p8lite I had to buy a new phone, thus a mew SIM card was given to me. I'm still on the same contract which covers all signal types. Ranging from E-4G I live in an area  with 3-4/5 bars of 4G I can't receive any 3G anywhere. Even with 3G option forced on. If anyone knows a way to use 3G it would help me stop using data so fast and I would appreciate it.</p>

Title: Nexus 5x won't use 3G since Android 7.0


问:
How to open maps using HERE WeGo or Waze instead of Google Maps?
I have installed Waze and HERE WeGo on my Moto G4 Plus (Android 6.0.1).

When I search for a street name in Chrome, I get a small map in the search results. When I click on the map, it opens the Google Maps application with the focus on the location that I had searched.

Is there a way to change this so that it will open Waze or HERE WeGo, instead of Google Maps?

I appreciate any help on this issue.


问:
how to re-arrange quick settings list in lock screen?
I am able to re-arrange the quick settings list that is showing after unlocking the phone, however, the list that appears when you pull down while screen is locked cannot be changed. To make it clear, I am able to add the "hotspot" tile in the unlocked screen list but cannot find it when I open this list before unlocking the screen. This tile was available in my old HTC M9 device but it's not there anymore in my new Xperia XZ with Android 6.0.1
Can I do this without rooting?</p>


问:
Nexus 4 drops connection to sim card when battery is low(ish)
For a few weeks now, my Nexus 4 (Android 5.1.1, stock rom) has occasionally lost the connection to the sim card. It won't have any connection to a network (indicator in the status bar is an empty outline, not just grayed out) and a few seconds later it will show the prompt to enter the sim's pin that normally only gets shown right after boot.

I have tried different sim cards (that work in other phones), the problem lies with the phone.

This primarily happens when mobile data is being used (I originally encountered the problem while playing Pokemon Go). I don't usually use much mobile data, so it might be older, though the problem didn't exist when I bought the phone in early 2013.

It happens more, the lower the battery is. It usually doesn't happen at all if the battery is >~60%. Then, from there it might happen, but after entering the pin it's good for another 10 minutes or so. The lower the battery, the more frequently the pin needs to be entered until at ~20% it will immediately show the prompt again.

The closest I could find on here is this thread, but since other cards show the same problem, it's not that the sim would need to be cleaned and I wouldn't know how to go about cleaning the reader given it's a unibody phone.

Any other ideas as to what could be the problem? Are there any useful log files I could provide?


问:
Need help in changing "Preferred Network Type" on rooted and unlocked LG G2 LS980
I need to change "Preferred Network Type" in Phone Info in Testing apk on my  LG G2 LS980, like in this screenshot from a Youtube video.

In the dialer, I type *#*#4636#*#*

Which opens the Testing apk as below, with following 4 options:

I can open Battery Information, Usage statistics and WiFi information as below:

But when I open the Phone Info menu, it says This application does not work on this device

My phone is running on Android 5.0.2, Software Version LS980ZVG (flashed with Stock ROM) and rooted. It is unlocked to use in India.


问:
Android VPN service's policy based routing relative to iptables (specific behavior question, android 5.0, 5.1)
Background:
Several phones, different firmwares

Elephone p7000, Android 5.0 based rom

Xiaomi redmi note 2, three different roms (5.1 based Cyaonogen, 5.0 based AOSP derivative)

Rooted.

Installed a VPN app (Shadowsocks, OpenVPN, reproduces on both)

Now added an iptables rule like that

iptables -t filter -A OUTPUT ! -o tun0 -p all -m owner --uid-owner [uid of an app] -j REJECT

1)
On elephone p7000 (android 5.0) and Redmi Note 2 (Cyanogen, A 5.1) the app now works only if VPN is connected

2)
On Redmi Note 2 (AOSP 5.0 based ROM) app no longer works whether VPN connected or not.

Questions:

a)
where does android VPN service's policy based routing stuff "normally" happen relative to netfilter packet flow ?

b)
Which one of the aforementioned behaviors is the "normal" android behavior?

c)
Is there a way (a clever ip rule trick, perhaps) to re-implement behavior 1 on systems exhibiting behavior 2?

Hope I was clear (not native speaker)

Thank you


问:
How can you tell if a notification is expandable or not?
I've been loving the new expandable notifications ever since I discovered them by accident. However, I've just found out that according to the comments on this question: "Is there any way (as a user) to force all notifications to be expandable?", that whether a notification can be expanded or not varies by application.

Since expanding doesn't always work first time, but usually works depending on where your finger lands, how can I tell without trying to expand a notification 10 times if it's even possible to expand it in the first place?


问:
List of domains used by Google Maps API Family (Firewall Config)
our corporate config firewall to allow Android Phone use
App to Map Location , our programmer use fused location provider API (GPS, Network etc) to Map , but the Phont is in the internal network,and deny access the internet , except for a few allowed sites (white list, *.google.com) and internal network,

we need the IP addresses/Domain List or range of IPs that Google uses for this domain. Is this information provided anywhere ?
we check on https://developers.google.com/, but can not found any thing we need. we search some forum , get some ip & domain but not sure its work,

◦mt0.google.com
◦mt0.googleapis.com
◦mt1.google.com
◦mt1.googleapis.com
◦khm0.google.com
◦khm0.googleapis.com
◦khm1.google.com
◦khm1.googleapis.com

please help and thank you.

by Lain
drupal2018@gmail.com


问:
Unable to flash TWRP recovery on nvidia shield tablet 6.0.1
I have TWRP Recovery file in the same folder as Minimal adb anf fastboot. The '.img' file is not flashing and i'm shown the options as attached in the screenshot of the command prompt. What to do?
P.S. - I'm a beginner.


问:
How to get back if rooting or loading Cyanogenmod fails?
I have an Mi Pad. I hate the UI & also hate the amount of memory it uses.
I am planning to root it & load CM on to it. However, it's a fairly new tablet & still under warranty. Also I have never used CM before. So I want to be able to easily get back to the original OS without having to download stuff & try to install it again. This is my first time ever trying to root or try custom ROMs ever.

So what do I need to do to get back to my original OS/ROM easily?


问:
Link headphone volume to master volume
I have already asked this question on Stack Overflow without much luck so far, but I figured it might fair better here.

I have an Android TV (Philips 49PUS6401). I want to connect a surround sound system to it which is much better quality than the built-in speakers even when only being used in stereo.

However, this TV separates the volume control for the master output and the headphone output, the result being that even with the in-TV speakers turned off, the volume keys on the remote do not adjust the headphone volume (which I'm using as a line out).

I am planning to write a simple app to adjust the headphone volume whenever the master volume is changed, but I can't seem to figure out how to get or set the headphone volume, as the audio manager deals with streams rather than outputs, so the only value I can get from it is the master.

How do I go about finding a way to get/set the headphone volume? I have got shell access through ADB, but I cannot get root.

For reference, the TV is running the latest firmware, which is Android 5.1.1.

I know that normally Android doesn't allow control over individual audio devices but instead uses streams, and Android's hardware abstraction layer (HAL) takes care of the routing, but somehow the manufacturer of this TV has been able to split the audio and feed it out of the headphone socket and a second output simultaneously. This issue has been quite heavily commented on in forums.

For the time being, I'm just looking for a way to access it over ADB, but long term I'm planning to write a simple app to link the volume of the main output to the volume of the headphones so I don't have to delve into a submenu (which upsets Kodi media player) in order to change the volume.

So, either ADB commands or the relevant section of the Android API would be welcome, I've already looked at:

AudioManager

AudioSystem

libaudio

and gone digging in the filesystem, I'm guessing that what I want will be hidden in the /dev part of the filesystem which I can't get at without root, but I would be glad to be wrong.

Title: Link headphone volume to master volume


问:
Cannot root HTC One
I am following this tutorial to root my HTC One M7:

I fill the form htcdev.com as described to get the file Unlock_code.bin sent by mail.

However, when entering in FASTBOOT mode

```<code># fastboot flash unlocktoken Unlock_code.bin
</code>```

I have a positive output on my terminal (see below) but nothing happens on my phone: I am still in the boot menu:

whereas I should get a screen with a message "Unlock bootloader?" directly after entering the command:

Where am I wrong and how to access this menu?

Terminal output

```<code># fastboot flash unlocktoken Unlock_code.bin
target reported max download size of 1514139648 bytes
sending ‘unlocktoken’ (0 KB)…
OKAY [ 0.141s]
writing ‘unlocktoken’…
(bootloader) unlock token check successfully
OKAY [ 0.004s]
finished. total time: 0.145s
</code>```

Fastboot Version

```<code># fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.61.0000
(bootloader) version-baseband: 4T.35.3218.16
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: ##########
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: ############
(bootloader) imei: #############
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: #########
(bootloader) cidnum: #########
(bootloader) battery-status: good
(bootloader) battery-voltage: 4254mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: ##########
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.041s
</code>```

Title: Cannot root HTC One


问:
Duplicate Notifications for Multiple Apps
For some reason I have been receiving duplicate notifications for many apps that offer push notifications (Amazon, Xbox)

How can I find out the cause of this issue?

Here is an example of the problem


问:
Error 497 in Play Store when trying to download specific apps?
I got my new Oneplus 3 today, but as I was trying to download certain apps (PvZ: Heroes, Whatsapp, and I'm assuming some more that I haven't tried yet), I would get the error "'App Name' can't be downloaded. Try again, and if the problem continues, get help troubleshooting. (Error code: 497)." For some apps (PvZ) the error pops up before it even starts loading the download. For others (Whatsapp), the download is mid-finished when it suddenly pops up and stops it from completing.

I tried downloading the same apps on my old phone (Samsung Galaxy Grand Prime), and even though I already had some of them installed, I couldn't update them. I tried on my friend's phone (Sony something), and it worked just fine.

I've tried looking online, but the only answers that I can find are "Uninstall updates for Play Store" or "Reset your phone to factory settings". I've done both of those things. My phone was in its factory settings literally half a day ago. What is happening, and how do I fix it ASAP? Also, why did it suddenly start happening on my old phone too? Any help is appreciated.


问:
Samsung galaxy J1 dialing pad shortcut
Is there a way to go straight from the home screen using a shortcut, directly to the dialing pad/phone keypad, without first going through phone > keypad ?

Ideally I'd like this shortcut to be in the shortcut bar at the bottom of the home screen rather than one of the home 'pages'.

Title: Samsung galaxy J1 dialing pad shortcut


问:
Firefox Android adding random strings to attached file names
Firefox Android is adding 'tmp_random number-' in prefix and '-random number' in suffix of the file name I attached to any website. I have tried Gmail and a number of website but it's changing my attached file name on all websites from 'Alam Resume.pdf' to 'tmp_123456-Alam Resume-1234567.pdf'.

I have double checked the file name of the file in question and found it correct. I even tried attaching different files but the issue is still there but when I use desktop browser to send same files it didn't add any number to the attached file name.

My Firefox Android version is 49.0.2

Android version is 5.1.1

Attaching files from ext SD Card

OwnerDisplayName: Alam


问:
How /system/xbin/su works?
I used TWRP for installing the su command, and I installed SuperSU app from Google Play. It works.

The question - how su command works? It hasn't s-bit, so it can not change eUID. In what way it gets root's permissions?

```<code>shell@mako:/ $ id
uid=2000(shell) gid=2000(shell)
groups=1003(graphics),1004(input),1007(log),1011(adb),1015(sdcard_rw),1028(sdcard_r),3001(net_bt_admin),3002(net_bt),3003(inet),3006(net_bw_stats) context=u:r:shell:s0

shell@mako:/ $ su

root@mako:/ # id
uid=0(root) gid=0(root) context=u:r:init:s0

root@mako:/ # which su
/system/xbin/su

root@mako:/ # ls -l /system/xbin/su
-rwxr-xr-x root     root        75348 2016-10-29 22:31 su

root@mako:/ #
</code>```

Title: How /system/xbin/su works?


问:
Random Crashes On Nextbook Ares 8
I need help. My Nextbook Ares 8 (NXA8QC116 5.1.1 Lollipop) keeps randomly crashing when I am on it, although when it is plugged in, it doesn't crash. HELP PLEASE!

NOTE: Now it does crash when it's plugged in.

Title: Random Crashes On Nextbook Ares 8


问:
Moto 360 won't vibrate with oneplus 3
I have a 1st gen Moto 360 and recently switched from a nexus 5 to a oneplus 3. My watch won't vibrate for new notifications or calls since then.

I did a factory reset and paired them again, didn't help. It buzzes when switch it off or on, so the hardware seems to be okay. I can't find any setting on the phone or in the android wear app that can affect this.

Versions:

Nexus 5: Android 6.0.1 with up-to-date security pathes, I no longer have access to this phone

Oneplus 3: OxygenOS 3.2.7

Moto 360:

android wear: 1.4.0.2580363

google play services: 9.8.77 (560-135396225)

adroid os: 6.0.1

Update, after a few system updates and restarts it's back, but very weak compared to the time it was paired with the nexus5. OP3's vibrate is weak too, so that may be the cause.

Title: Moto 360 won't vibrate with oneplus 3


问:
Problem with usb connection (MTP)
Hi I have very weird problem, when I connect to PC via USB I get two partitions Internal storage (or adopted depending which one is primary) and external storage, when I open external storage there is nothing not even the folders but when open internal storage there is a files from external partition and internal merged there is folder from internal and external memory, also there is folder called 'storage' with sub-folder 'emulated' with sub-folder '0' I don't get it what gone wrong? One more thing when I paste something in internal partition it goes there the same happens with external partition? I tried clearing cache, clearing data and cache for Media storage an External storage, please help!
This marked as duplicate doesn't help me I've have written that I tried that and it didn't help, I've tried everythimg from answers of question but still nothing.</p>

Title: Problem with usb connection (MTP)


问:
How to share internet via Wifi hotspot/USB tethering on Xperia SP?
I am unable to share my mobile internet connection via Wifi hotspot or USB tethering to a laptop. When enabling the Wifi hotspot, the laptop connects to the Wifi just fine, but whenever I try to access a website on the laptop it ends in an error; on the phone it works fine. Same issue with USB tethering: The laptop connects just fine, but internet itself isn't shared.

Now I've isolated the issue as coming from the phone itself:

internet works fine on the Sony Xperia SP

same SIM card on a different phone: sharing internet connection works fine (the type from the phone company was adamant they can't block this from their side)

connecting phone to home Wifi and sharing that internet connection via USB tethering to a laptop works fine

using a different SIM card on the Xperia SP and I still can't share the mobile internet connection

The only thing that comes out of it is that for some reason the Xperia SP somehow is incorrectly configured and doesn't share mobile internet access via Wifi/USB.

Which settings should I check on the Xperia SP to ensure that sharing mobile internet connection works?


问:
How do I hide or lock Android's Internal Memory when connected to PC?
When connecting any Android Device to PC it will show both internal memory and external memory (SD Card), is it possible to hide or lock the internal memory to avoid deleting or messing with apps files?

The device we're using is a Chinese Android Tablet:

Name & Model: Eken E902

Build Number: astar_m900-eng 4.4.2 KVT49L 20160322 test-keys

Kernel Version: 3.4.39

Firmware is exdroid4.4.2_r2-a33-v2.1

O/S version is Kitkat 4.4..2


问:
Firefox: keyboard freezes several seconds when typing into forms
I open Duckduckgo and Google in Firefox on my Android 5.1 phone. Usually I have multiple tabs open, but not that many. I start typing, and after two or three characters, the typing freezes. I can continue to type, but nothing is displayed. Then after a while, it catches up and then I can continue to work normally. Then, if I do another search, this doesn't happen anymore. It seems to happen mostly after not using Firefox for a while. </p>

<p>What is causing this behaviour? Is it the keyboard or Firefox? In other apps I don't have problems with the keyboard. The keyboard is Xperia from Sony. </p>


问:
PAC file with dnsDomainIs on cellular network?
My country started blocking access to some sites, so I'm trying to setup my devices to bypass it. I decided to use proxy via PAC file, because I don't want to reroute all my traffic just to access couple of sites. Following *.pac is working on Windows but I'm not able to find a way to use it on Android (or to at least to use proxy/vpn only for specific sites). I heard that Firefox on Android supports PAC files, but it's super slow compared to Chromium based browsers (at least on my not super fast device).

Autoproxy and ProxyDroid apps don't accept this PAC file and Drony (if I understood correctly) requires input of it's proxy address in APN settings which causes disappearance of mobile internet on my operator.

my PAC file:

```<code>function FindProxyForURL(url, host) {
 if (dnsDomainIs(host, "somesite.com")) {
    return "HTTPS someproxy.com:9050; PROXY someproxy.com:9050; DIRECT";
  }
  return "DIRECT";
}
</code>```

I have root, busybox, xposed.


问:
Very weird issues with android
So I have an interesting case with android... Before I start, yes I have done factory resets, I have even tried installing a new ROM. I have replaced hardware. I have replaced the SIM card. But I still have my issue with my phone and only with this specific phone. My Samsung Galaxy note 3 has connection problems connecting with my carrier. My carrier is Family Mobile which is a T-Mobile reseller. I also own four other phones between me and my family who are with the same carrier as me and I do not have the connection issue when I put my Sim in their phones. My issue goes as follows:
My phone will randomly disconnect from data. I cannot send texts/call etc. And my phone is basically not longer registered on my carriers network. My APN setting are correct. Although sometimes but not every time when my phone disconnects, I'll see that its then registered on AT&T. Once I re-register on T-Mobile, the phone works for a short while. Sometimes when the last issue does not happen, I'll see a notification that says sign into T-Mobile and I'll click on it and push 'use-network-as-is' and the connection would work again for a short while. There's been a few times where the last two cases don't happen so I'll go into my APN setting and switch between two APNs that are registered to the same servers. Once I switch to the other APN, the networks works again for a short while, I have replace parts inside my phone and the phone still has the issue. This is the only connectivity issue that I have on my phone so that means, NFC and WIFI works just fine.</p>

Title: Very weird issues with android


问:
Notification light when turning on phone
currently I'm running 6.01 on a 2013 Nexus 5, with Xposed installed.

This is purely for aesthetic purposes; however, is it possible to have the notification LED flash when I turn the phone on (some newer LG phones do this).

Is there a way to call a script when you press the power button?


问:
Disable cursor and automatic zoom into textbox in Firefox
I have Firefox installed in my Android devices (phone and tablet). Everytime I open a new site (say bookzz.org ), the cursor is automatically in the textbox, the page is zoomed in and the on-screen keyboard pops open. This is extremely annoying and though it seems simple, I have no idea how to fix it.

Any ideas?


问:
Incorrect touch resolution
I have a Teclast X80h and I flashed the Android 5.0 v7 mirek's ROM to it. It's original stock ROM was 4.4 Jellybean. With the new firmware the display resolution and the touchscreen resolution is not the same. If I move my finger on the screen then the contact indicator moving only on a pretty smaller area, maybe 20% of the display size.

See the attached picture. (If I touch at the big dots, it reacts at the small dots inside the yellow marked area.) It is almost useless. At the moment I navigate with a mouse on the OTG.

What I tried:

Download a calibration software. Failed it. I can not found any. Only sensitiveness calibrators exists for Android. On Windows You can calibrate coordinates, but on Android... Somewhere I read that the calibration data is hardcoded in the kernel.

Compare the stock ROM with the newly installed one, search for differences on drivers or config files. The .idc files are the same in /system/usr/idc, and the .drvb files are the same in /system/vendor/firmware.

Modify the .idc file in /system/usr/idc I found some content at Android's site about the Input Device Configuration files. I tried the following parameters:

touch.scale (but it is corresponds to contact area size)

raw.x.max (the maximum of the raw value received from the touchscreen)

output.width (the displqy coordinate to associate to the max raw value)

Anyway I tried almost all touch.* raw*. and output.*

Nothing helps. BTW the uploaded firmware was created for another but very similar model X98 Air. This firmware must work on this model as shown in a Youtube video "X80h Android 5".

Note: I have the skills to extract a ROM or decompile an .apk!

Should I replace a driver? Or is there a handy software?

Should I modify another config file? Or the kernel?

Thanks guys

Title: Incorrect touch resolution


问:
How to fix Android file system error
There's a corrupt file on my (rooted) Android device
at /data/anr/traces.txt

when I cd to this directory with adb shell, or try to do cat or rm on this file I get I/O error

Most importantly it prevents me from having a TWRP backup, as it fails at reading this file,

How can I either delete it or fix it?

Deleting anr folder with ES File Explorer or Cyanogen Built In File Manager results in error, also these file explorers don't actually show any files inside anr folder

update on comment:

running fsck.f2fs outputs
```</p>

```~ # fsck.f2fs -f /dev/block/mmcblk0p48
Info: Force to fix corruption
Info: sector size = 512
Info: total sectors = 50454272 (24635 MB)
Info: MKFS version
  "Linux version 3.10.84-perf-g329ac5f (hudsoncm@ilclbld30) (gcc version 4.9.x-google 20140827 (prerelease) (GCC) ) #1 SMP PREEMPT Wed Apr 20 17:03:52 CDT 2016"
Info: FSCK version
  from "Linux version 3.10.84-perf-g0ec7138 (hudsoncm@ilclbld87) (gcc version 4.9.x-google 20140827 (prerelease) (GCC) ) #1 SMP PREEMPT Tue Nov 3 05:01:11 CST 2015"
    to "Linux version 3.10.84-perf-g0ec7138 (hudsoncm@ilclbld87) (gcc version 4.9.x-google 20140827 (prerelease) (GCC) ) #1 SMP PREEMPT Tue Nov 3 05:01:11 CST 2015"
Info: superblock features = 1 :  encrypt
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 50454272 (24635 MB)
Info: CKPT version = 10de4e
Info: checkpoint state = 5 :  compacted_summary unmount

[FSCK] Unreachable nat entries                        [Ok..] [0x0]
[FSCK] SIT valid block bitmap checking                [Ok..]
[FSCK] Hard link checking for regular file            [Ok..] [0x0]
[FSCK] valid_block_count matching with CP             [Ok..] [0x2beeaa]
[FSCK] valid_node_count matcing with CP (de lookup)   [Ok..] [0x723f]
[FSCK] valid_node_count matcing with CP (nat lookup)  [Ok..] [0x723f]
[FSCK] valid_inode_count matched with CP              [Ok..] [0x69ed]
[FSCK] free segment_count matched with CP             [Ok..] [0x12ca]
[FSCK] next block offset is free                      [Ok..]
[FSCK] fixing SIT types
[FSCK] other corrupted bugs                           [Ok..]
```

<p>but next <code>ls -l /data/anr/</code> reveals that file is still corrupted</p>

<p>i know exact <code>inode</code> of the offender</p>

```|-- anr <ino = 0x476b>, <encrypted (0)>
|   |-- traces.txt <ino = 0x3c19>, <encrypted (0)>
```

Any ideas? I dont want to format /data i have stuff on it I want to backup with TWRP

Title: How to fix Android file system error


问:
Samsung Galaxy S3 with USB Keyboard and Google Keyboard
I have a Samsung Galaxy S3 (SGH-I747), running Stock 4.4.2, non-rooted.

I prefer the Google Keyboard from the Play Store over the stock Samsung Keyboard.

Lately, I've been connecting a USB Keyboard to the device with a USB-OTG cable, which works great, but unfortunately causes my keyboard to reset every time to the stock Samsung keyboard, which remains the default keyboard, even when I disconnect the USB keyboard.

1) Is there any way to have it not switch back to the Samsung keyboard when I connect the USB Keyboard, and just keep having it use the Google Keyboard?

2) If not, is it possible to have it switch back automatically to the Google Keyboard when I disconnect the USB Keyboard?

I'm willing the root the phone, if necessary, to achieve this. Any advice you might have would be great. Thanks!


问:
Is there a way to make a full backup of my device?
When I say full, I mean full. Like, everything. Boot partition. System stuff. Every single file and byte. Something I can flash back through odin or otherwise, if I mess up while experimenting with the wrong ROM. Something that can put my mind at ease while experimenting so I don't fear ending up with an expensive paperweight.

I'm basically looking for the android equivalent of what dd would do to back up a disk. dd creates a full image, including every last byte, that you can write right back. Hell, it even includes the MBR if you point it at a raw device instead of a partition.


问:
Notifications don't show up until I wake the phone
I have identical problem on two Nexus 5x phones.
In last few weeks I've noticed that I don't receive any notification(Gmail, calendar, sms...) when phone is in "sleep mode" but when I wake it up (with power button, shake etc) the notifications show up immediately.

1. I thought there is something wrong with the notifications settings

Settings->notifications->configuration:

Pulse notification light: "ON"

On the lock screen: "Show all notification content"

2. I checked every settings of every app

everything is set correctly

3. Battery saver - "OFF"

Settings->Battery->Battery saver

4. Doze (battery optimization for apps)

Settings->Battery->(drop down menu)->Battery optimization

Every app moved to "Not optimized"

(updated)

5. Data Saver - "OFF"

(updated)

6. Keep Wi-Fi on during sleep - "Always"

Settings->Wi-Fi->Gear icon->Keep Wi-Fi

and still...NOTHING :(

I have made a simple demonstration with Calendar event notification:
 https://www.youtube.com/watch?v=WoCgA1rkq18

Technical info:

Phone: LG Nexus 5x

OS: Android 7.0 (Nougat)

App killers installed: NO

Rooted: NO

Custom ROM: NO

Connection: tried with every combination = Offline, WiFi, Mobile data, Wifi + data

Thx for help and sorry for my english :-)


问:
Does the Google Play store always show an app's update date and version consistently?
I thought the update date and version should be consistent. But the note of the update of Pokemon Go says version 0.45, updated Nov 6, 2016, but if I go to Google Play store, it says updated Nov 6, but version 0.43?

What I mean is, shouldn't it have the updated date of earlier date, and version 0.43, OR showing BOTH the newer updated date and version 0.45? (update date and version number consistent with each other).

Screenshot on Google Play website:


问:
File explorer is empty for nougat emulator?
In Device Monitor File Explorer remains always empty.why? For other emulator is works perfectly fine.Please Suggest me solution</p>


问:
How does handover from wifi to gprs work?
I start a google hangouts call and I'm connected to wifi.
Then when I leave home, the call is handed over from wifi to GPRS.
How is this done?
Does the app help doing the handover or is this transparent to the app?

When switching to GPRS, the phone gets a new ip address, so a new connection is necessary, right?


问:
Remove Screen Record and Screen Shot from Quick Settings
On a Chinese Tablet running on Kitkat 4.4.2 there's 2 options "Screen Shot" and "Screen Record" on the Quick Settings Swipe Down. I'm struggling to find a way so I can disable or remove those functions.

I've attached an image to further explain what I'm looking for.


问:
Network not changing
Whenever I am trying to change my mobile data from SIM 2 to SIM 1 its not working, it says data subscription change in progress but it never change actually.

Settings - Sim cards - preferred sim for mobile data. Moto G2 - 6.0

I tried all the scenarios changed SIM card disable enable all scenarios but no luck.

Can someone please provide me some guidance on the same so that i can switch data to other network.

Thank You.

Title: Network not changing


问:
remapping volume up to power button on nexus 5
my power button is half broken. I have rooted my phone and installed xposed framework and xposed additions. I have successfully remapped my volume-up so that when the phone is on I can switch it off or unlock it with volume-up. But I don't manage to switch on my phone. Can anyone point out the correct configuration of xposed that allows this? or suggest an alternative route?</p>


问:
Viewing an encrypted emacs org text file on android
I use a gpg encrypted .org text file to store sensitive data, passwords etc. in a dropbox folder

I use this all the time on my various laptops

Having just purchased an android smartphone, I am wondering whether there is an efficient way for me to view that file on the phone?

I have installed dropbox app no prob and that works fine.

The unencrypting and viewing of the .org.gpg file however has not been so straightforward.

I have managed to decrypt the file on the phone with APG app, but it leaves a tmp unencrypted file in an obscure place which I'm not too thrilled about - and I can't see any way of sensibly viewing a .org file in android. I have seen/played with .org mode app but it doesn't really work very well.

Maybe I need to think laterally - could there be another way of sharing my sensitive data across laptop/phone that is secure, but also easy to use?


问:
SIM card no longer recognised
I own a Sony Xperia Z5 dual SIM phone. Phone is unlocked and running Android 5.1.1

I always used it with the same SIM card (3 Network) and it always worked well. Yesterday I tried to add a new SIM card (Vodafone) in hope of using both SIM cards in my dual SIM phone. Unfortunately the experience resulted in only the Vodafone SIM working. 3 Network SIM stopped working and now even after removing Vodafone SIM it still doesn't work. When I say "doesn't work" I mean that I can see "emergency calls only" displayed on my screen.

What I tried:
-Reboot and hard reboot (yellow button near SIM slot)
-3 card still works in another handset
-Vodafone card works in this and in another handset

Clearly SIM card slot is not damaged seeing that Vodafone card works and 3 SIM card must be fine as well because I tried it in another phone. Phone cannot be SIM locked because I used 3 SIM card there for months or could it got locked somehow?

What should I do to make my phone work with my old 3 SIM card again?

Title: SIM card no longer recognised


问:
Disable email syncing on public wifi
I have a Samsung Galaxy S4 mini.
I have enabled active email syncing every 15 mintues cause it's obviously useful. However, I would like my password to remain safe when logged in to a public wifi that I may require temporarily when in a restaurant or airport. In other words, to suspend automatic syncing when using such unsafe networks ; sync only on trusted networks or when on roaming. Is there any way to configure that ?</p>

Title: Disable email syncing on public wifi


问:
Entering a pattern using the keyboard
I am using a keyboard with my android phone (connected via a usb otg cable)

I have noted that hitting SPC or RET when the phone is locked takes me to the unlock screen where i have to enter a pattern.

Is there a keyboard shortcut means for entering a pattern?

If not plan B is to switch to a PIN - but I quite like the pattern, hence the question..

Title: Entering a pattern using the keyboard


问:
Accessibility menu keeps appearing
On my Moto G4 the Accessibility settings menu keeps popping up, and I can't make it go away. The only thing that works temporarily is to put the phone on standby, then reopen and the phone works normally for about 30 secs before the menu pops up again. I've tried turning off the phone and it still keeps happening. Any ideas?</p>

Title: Accessibility menu keeps appearing


问:
How to increase the size of Android 6's personal dictionary?
When adding new words to the dictionary, old words keep getting forgotten. It feels like I can only add about 1000 words (might be off, but that's the order of magnitude). Words disappear in the order they were added in (FIFO), so often basic and commonly used words are removed. Note that this holds for the personal dictionary, the selected language's dictionary is static and remains. So, I keep adding the same words over and over, and sometimes even in the same message, words can get a red underline when adding other words. It seriously feels like the Nokia 3510's dictionary is the same size as my modern Android (and every other Android I ever had), and I'm not even kidding.

How can I increase the dictionary's size? Or alternatively, how can I make android predict more words than it currently does?

My use case is that I use 2 languages interchangeably within sentences; English and dutch slang + dutch dialect. All words I have added are under 'English' in settings. I have several reasons for not switching dictionary languages mid-sentence, but it's mostly convenience. If I did use the dutch dictionary, I would still have the same problem. While dutch may align with dutch slang for ~85%, only ~5% of the words match with my dutch dialect. So basically I'm trying to fit 2 extra languages within my personal dictionary and it doesn't fit.

Any solution may be far fetched or require rooting, I don't care. This issue has been haunting me since my first Nokia phone. My current phone has the storage space for more than a billion words (60 Gb free space, 15 character words in UTF-8), so surely technology has advanced enough to allow more than a thousand words. Any help would greatly be appreciated!

Specs:

Android 6.0.1

Cyanogen OS 13.1.2


问:
Android Kitkat OS for Lenovo Vibe K5 (lollipop) Device?
I have Lenovo vibe K5 device and its running on Lollipop 5.1, for some reasons i want to downgrade it into Kitkat, So is it safe to downgrade higher end device into lower version of android if yes, i need compatible Kitkat OS for this device?</p>


问:
How to find a specific picture in Android's gallery app?
I have some 1,500 photos on my smartphone taken over the course of more than a year.

In the Android default gallery app, the most recent pictures are shown on top, in a two-column layout.

How can I directly jump to the oldest pictures, or to any of the pictures in between, without having to swipe some 30 times?

Concrete issue: I am trying to select a photo, and the gallery app is launched in selection mode. Every once in a while (about once in 5 to 10 attempted swipes), when trying to swipe, I accidentally select a picture. I cannot undo that and return to the gallery app; instead I can only cancel the selection, re-open the gallery app, and start swiping from scratch.


问:
Program the official rom of samsung phone
Is there a way to program the official rom of a samsung phone?

for example to add a feature on the rom that doesn't exist or just the only way is to create your own custom rom?

My phone is Samsung Galaxy Note 5 Marshmallow 6.0.1. A feature that I want to add is the ability to mark as read messages from notifications without open them. (I don't want to create an app for this that's why am asking how to program the official rom)