问:
Where are update files stored in android?
I recently tried to update my Samsung galaxy S4 from Android Kitkat to Android Lolipop.The process downloaded a large file ( Around 1.1 GB ).But the dowload failed when it was almost 99% due to some unknown reason.However on checking the update again , it restarted the download from 0%.
But i'cant download it anymore due to some other reason.I would like to know if it is possible to find & delete the downloaded file ( The files from 99% download ) ?

Is there any way to continue the process from the 99% ?

Any advice is appreciated.Thanks in advance.


问:
How do I trick Android to think that it is from a different country?
I installed Android 5.0 on a second-hand HTC One (M7) device which comes from United Kingdom. The ROM 7.17.1540.7 comes from the official American HTC website, and the UK website doesn't list any ROMs.

Since then, system update to 7.17.1540.21, performed automatically by the device, fails with the following error:

We have determined that your phone may be running a modified version of its system software. For your protection, we cannot update your phone. Please revert your phone to the official HTC system softwarte to update your phone. If you did not modify your system software or would like help reverting your system, please contact us via the support section at www.htc.com.

Day after day, it downloads the huge update, and shows the same message, again and again.

I contacted the support from United Kingdom. After a long, unpleasant discussion, the person suggested to send the device to the UK repair center in order to reset it, which means lots of trouble of backing up the device and wiping all personal information, and then waiting at least three weeks for it to be “repaired” (given that I live outside UK.)

Is there any way I can either download a UK version of the ROM or trick Android to think either that it's from UK or that the phone is from USA?

ContentLicense: CC BY-SA 3.0


问:
What is the real used space on data partition of my phone?
When selecting data partition on my phone (HTC One M8), TWRP says it's going to back up 5448 Mb. But 'df' command says there are 8319 Mb used from 10934 total. And ES Explorer displays the size of /data directory as 11.32 Gb.
How are these figures related? I'm at a loss trying to explain that.

Here is the screenshot of DiskInfo:

Here is the screenshot of Diskusage:


问:
IP address using 3G/4G modem (USB on the go)
If I use a 3G USB (on the go) modem on my Android device, do I get the IP assigned by the Carrier as the SIM card was inside of the device?
Does it appear as usb0 in ifconfig?
Thank you.

PS
I would like to avoid what happens on the pc when you use usb tethering: the phone has its IP assigned by carrier (usually 10...) while the pc gets a different address (usually 192.168..*) as in a local network with the phone only


问:
Automatic power on at preset time
Is there a way or app that allows to program a schedule for automatic power on/off on the phone for android 4.x?

I know that in the settings there is a similar option, however it allows to define only ONE schedule for power on and ONE for power off, while I'd be looking for more flexibility.

Edit:

I'm using an HTC desire 310 with android 4.2, and my use case would be like turn the phone off at 11pm when going to sleep, and then having it automatically turn on at 6.50am, so the alarm set at 7am can regularly wake me up.

Title: Automatic power on at preset time


问:
How to run Google now in backgroud?
I don't know where to ask the question, so if you want to migrate it to SO or software recommendations please do so. If what I'm asking for requires programming, I can do that, if it requires root, I have a rooted s3 mini android version 4.2.2 and I can also pay for apps

My current device is Samsung A5, not rooted, running android 5.0.2. I have tasker. I want to keep google now running in the background (not the launcher, the voice recognition system).

So it doesn't require me to say "ok google" for it to run. I want to say some word followed by a command and it runs the command automatically. Big plus if I can make it work on lock screen too.

Title: How to run Google now in backgroud?


问:
adb backup gives "Bus error: 10"
I have just installed the latest version of the Android Studio. I now have adb and fastboot available through the platform-tools.

When I run adb backup -all I get a "Bus error: 10".

What's wrong here? Is there a problem with the lastest version of the Android Studio?

FYI, I am running on Mac OS X Yosemite (10.10.4), rooted Android v4.4.4.

Cheers!

Title: adb backup gives "Bus error: 10"


问:
Can't get back into android phone after factory reset
I returned my phone to factory reset after I had certain issues witht he device. The factory reset was successful, however I am now prompted to the configuration menu of the phone, as expected. The only thing is, that when I select my language and wifi network, it sends me to a page saying: "This phone was factory reset and needs to be resynced with your google account". I enter my username and password. The phone then retruns me to the wifi selection where I have to redo the entire login sequence, only to return to the wifi again. I can't get into my phone anymore, is there anyone who knows what is going on.

I have a Nexus 6 running android 5.1.1
I have already tried turning it on and off again.


问:
Nexus 7 2013 is permanently awake
Note: I do not mean screen-on state, but awake state.

My Nexus 7 is permanently awake. It is not rooted, so I could not easily check for wakelocks. I did try the method to run wakelock detector on a non-rooted device, however, and it started working for a moment, until I restarted Nexus. While it was working, it showed a 97% Awake state for a day or two of running.

However, the wakelocks were minimalistic. At first, there was Any.do showing some good amount of holding awake state, but it was far from permanent wakelock. In a moment however the top 3 wakelock holders disappeared and only minimalistic wakelocks stayed. The minutes of awake state of the wakelocks shown would not add up nearly up to an hour of awake state, whereas the device was awake for more then 24 hours already.

Android system processes were shown too.

Do you know what could be causing a permanent awake state of the device? Can I do anything about it other than rooting the device? Towelroot is not working and I know of no other rooting method that would not leave my device flashed to the factory state (do not wanna lose state of the device).

Title: Nexus 7 2013 is permanently awake


问:
USIM unable to store contact
Using Jellybean (4.4.2) I'm trying to save a new contact to my phone (I want to whatsapp this person).

Whether I add the person through my People app or through Whatsapp itself, I get the same error:

The USIM is unable to store the contact

I have only 72 contacts and it's my understanding that USIM allows for thousands so what gives?

Title: USIM unable to store contact


问:
Unlocking Bootloader on Motorola ET1
I would like to unlock the bootloader on my Motorola ET1, but I have a problem: once I restart the device in the bootloader, it is not recognized by my computer (fastboot devices doesn't detect it) and therefore I cannot complete the process.

Why is this? I have the Android SDK installed on my Windows 10 Pro x64 PC, and the drivers are installed as well because I am able to use adb-based commands just fine.

Here's what I am doing to try to get the bootloader.

I connect the device to my computer and use the Android SDK to issue adb reboot bootloader which causes the device to restart and boot in to this screen.

My device seems to be listed in the Device Manager no matter what state my device is in.

fastboot devices does not do anything when I run it.

Title: Unlocking Bootloader on Motorola ET1


问:
Netcat udp listener upon boot
My goal is open a UDP listener on port 5555 upon booting my device. It's suppose to be looking for a specific message that will tell it to do some updates. I have a service started upon boot that has a shell script the run net cat. I have cross compiled netcat to run on my machine.

My init.rc has something along the lines:

```<code>service update /system/bin/update.sh
    class core
    critical
</code>```

My update script is:

```<code>netcat -luvv -p 5555 2>&1 | while read cmd params; do
case $cmd in
   #do stuff
esac
done
</code>```

So in this, my service does get started, and netcat begins. Only issue is it's not recieving any messages I'm trying to send out. Also, if I try to send out any messages manually through netcat, like echo hello | netcat -u localhost 5555, it's not sending out any bytes.

Any help would be greatly appreciated.

Title: Netcat udp listener upon boot


问:
Not able to install google play services!
I can't install google play services, either from play store or from a downloaded APK.

When I downloaded it from play store, the following error was displayed:

incompatible with other apps using same user id

I can't login to my Google+ account.

I can't factory reset my phone as my progress in game clash of clans will be lost so other solutions are preferable.

I'm rooted.

Android version: 4.0.3

Model: xoloA500


问:
Skip an OTA update straight to next version, on Galaxy S4
My not rooted Galaxy S4 Android 4.3 has received notification of an OTA update. By the size I know it's for Android 4.4.2 KitKat.

I know the phone provider has already released an OTA update for 5.0 Lollipop.

Can I skip the Kit Kat update and go straight to Lollipop? Or do previous updates need to be installed first?

Thanks


问:
How can I symlink /data mount point to preseve it on reboot?
There is a link under /emmc@usrdata which points to the emmc data partition which is /dev/block/mmcblk0p7 (which is small).

I have created a 4GB EXT4 formatted second partition on  SD card, which is /dev/block/mmcblk1p2

In fstab the device name used for the /data mount is the link /emmc@usrdata. I have tried removing this link and creating a new one pointing to the new partition, but on reboot the symlink points to the original one again.

How can I make this symlink stick?

I haven't been able to find a script that writes the symlinks to root on startup, but there must be one there somewhere. The device is an MTK based phablet. ( Aries_7O ). Any clues would be appreciated.


问:
Why application size increases after moving to sd card?
I installed application and see that it allocates say 35Mb. Then I moved it to alsd card and it allocates 41+Mb. I see these "changes" for every application which is moved to sd card. Why it is happens?</p>


问:
How do I prevent apps from waking up Sony Xperia 3 compact?
I have a Sony Xperia Z3 compact, with Android 5.1.1. This phone is not rooted, and actually belongs to a friend, so I cannot root this phone. I am having battery life problems that appear to be a result of the phone not sleeping correctly. In the battery indicator, the phone is shown to have been awake almost constantly over 16 hours, including overnight while charging, while the phone had its screen on for only the first hour of that time period.

The top battery hogs are:

Whatsapp 13%

Facebook 12%

Android OS 10%

Messenger 8%

I have already set the WiFi to never be on while asleep because I have previously had problems with this.

How do I prevent these apps and the Android OS from constantly waking the phone and draining the battery?


问:
Google translate on SD card
This question has been asked a lot before, but I can't find one from this year (or any answer that solves my problem)

I have just installed google translate on my new Samsung Galaxy J1 (SM-J100Y)  with Android 4.4.4

Is there a way I can move google translates offline translation packages to the SD card.  I tried copying the data folder, but it doesn't work, the app says it can't find any offline packages (after following these steps https://sites.google.com/site/galaxytinfo/saving-offline-languages-for-google-translate-into-external-sd)

Title: Google translate on SD card


问:
How to disable the droplet/beep sound of the lateral volume buttons on Samsung Galaxy A3?
I have a Galaxy A3 with Android 5.0.2 and when I press the sound buttons in order to turn the volume up or down, those buttons make a beep/droplet sound. How can I disable this sound?

I know it was possible on previous devices, as I have a Galaxy Note 10.1 tablet, where these annoying beeps are disabled.

Is there a way to do that in perhaps in Settings or with the installation of a third party app?


问:
Format of phone number in imported contacts
I created a VCF file (VCARD version 2.1) of contacts and imported it into an Android 5 phone. A Motorola Moto G 2nd generation.

The VCF has phone numbers formatted correctly for the UK (e.g. "01234 567890")

```<code>BEGIN:VCARD
VERSION:2.1
N:;John;Smith
FN:John Smith
TEL;HOME;VOICE:01234 567890
REV:20150824T162717Z
END:VCARD
</code>```

but Android has altered them to a format that looks like a US format ("012-345-67890).

How can I stop this happening?


问:
Run Bash Script from Terminal
I have modified a kernel's ramdisk to include a "settings" terminal run bash script.

However, when I type in terminal

```<code>su
dp
</code>```

I get file is not found.  dp exists in the ramdisk as /sbin/dp
I've attempted to create a symlink on flashing it with the following

```<code>symlink("/system/bin/dp", "/sbin/dp");
</code>```

However, I notice the symlink is never created (yes, I have data, system, and cache mounted during the flash process)

How can I ensure dp is run via just typing in the above?

Title: Run Bash Script from Terminal


问:
Is it possible to start an infinite loop within init.d?
I would like to create an init.d script to control the fan of my Odroid XU3 under Lollipop 5.1.1, CyanogenMod 12.1.

I already make one on linux which is working well and would like to port it to android.

The script is an infinite loop which is active every 5 secs. Is the Android init.d module able to use an infinite loop will it brick the device ?

https://github.com/AlexisTM/Odroid-XU3-Fan-Control-services


问:
Running your own .sh script at vold.decrypt=trigger_shutdown_framework via init.rc (android 5.0)
I want to workaround a vendor bug in an Android 5.0 phone (chinese, MTK, no proper source)

Problem is due to a bug in some binary, /data is not properly released on

```<code>vold.decrypt=trigger_shutdown_framework
</code>```

and

```<code>vold.decrypt=trigger_reset_main
</code>```

As a result, /data does not unmount (even if fuser -m and lsof report no process "holding" it)

A workaround is to use busybox to do a "busybox umount -l /data", encryption goes to proceed fine then, but you can't do it over ADB every time you want to DEcrypt your phone (remember, bug manifests for trigger_reset_main too!)

So, my idea was to change init.rc along the lines of

```<code>on property:vold.decrypt=trigger_reset_main
    start forcedata
    class_reset main

on property:vold.decrypt=trigger_load_persist_props
    load_persist_props

on property:vold.decrypt=trigger_post_fs_data
    trigger post-fs-data

on property:vold.decrypt=trigger_restart_min_framework
    class_start main

on property:vold.decrypt=trigger_restart_framework
    class_start main
    class_start late_start

on property:vold.decrypt=trigger_shutdown_framework
    start forcedata
    class_reset late_start
    class_reset main
</code>```

And then declare a service

```<code># CUSTOM FORCEDATA SERVICE
service forcedata /system/bin/sh /forcedata.sh
    disabled
    oneshot
</code>```

And put an forcedata.sh file in ramdisk which basically contains the busybox umount -l /data thing

BTW, Lolipop, nastily, no longer allows you to push messages to logcat, so debugging this one is becoming extra-hard

Problem:
The script doesn't run at all.

I suspect it is due to Selinux shenanigans, but can't verify for sure (logcat does not appear to contain useful pointers)

Did anyone here have success with running .sh scripts via init.rc modification under Lolipop, and if so, how do you do that ?

P.S.:
Using Carliv to un/re pack the boot.img


问:
Combining Ghostery and HTTPS-Everywhere on Android?
On my PC (Windows 8.1) I am happily using Firefox with the Addons Ghostery and HTTPS-Everywhere. I really like this combination so I winder how I can achieve the same things on my Android phone.

I tried the Ghostery Browser for Android which however does not bring HTTPS-Everywhere-like functionality and offers no way to install such a plugin either.

I tried installig Firefox for Android and installing the Ghostify and HTTPS-Everywhere addons. This works quite well but is not very comfortable to use and quite slow. Also, Firefox crashes from time to time and does not cache loaded tabs in a way that they can still be viewed when offline without reloading. This is my favourite feature of Google Chrome and it would be a pity to do without.

So is there any way to combine the functionality of Ghostery, HTTPS-Everywhere and the nice Google Chrome functionality and its lightweightness?

... on Android?


问:
Why used internal memory is greater than total size of apps?
My phone reports 131MB internal memory use but when I add up the sizes of all apps in internal memory, it doesn't add up even to 100MB. I don't have any media whatsoever in the phone. What is the culprit for my ~30MB loss?

Edit: The storage space started to drop significantly after I have upgraded the stock Android Market app to Google Play Store app. After this, I think Google Play Services has been downloaded, which takes up a lot of space. Still, it should not be taking up that much space. Strangely, when I plugged my phone to my PC via USB, the reported internal storage dropped to 70MB again. I can't find an explanation for this.


问:
How to reinstall Google download manager on rooted MOTO G X1032?
I'm on Android 5.0.2, rooted through Clockworkmod. I have Titanium Backup synced to my Dropbox and a Nandroid image.

I deleted the default download manager (stupidly on my Titanium Backup as well) to free up space, necessary despite having 100's of megs to spare - i think this will fix that.

I've done a factory reset, but no luck. All my apps are wiped, including Titanium Backup and Nandroid (which i don't know how to restore to anyway).

Download Manager isn't visible in this bundle of google APK's. Is it packaged with something else? Will i be able to run the APK when i do find it?

Edit: I've been advised to extract the download manager from a Custom ROM. How do i do this?


问:
Wifi won't turn on after rooting
I have an Epson Moverio BT-200 Wearable glasses with Android 4.0.4 and kernel "3.0.21-00003-OMAP-Android+". I rooted the glasses, tried every method without success until I found KingRoot, which succeed in rooting.

After that, the wifi toggle on Settings won't enable. Sometimes is gray (without enabling me to tap it), and sometimes is clickable but when i tap it to turn it on it gets off again and the screen remains saying "Turning on Wi-Fi" forever.

I did not do anything else after rooting. What can be the cause? I tried factory resetting the phone via Settings > Backup, and it did not solve the issue (I also still have root after factory resetting).

I have read that flashing the original ROM could fix it, the problem is that Epson does not offer the ROM image anywhere.

Thank you.

Title: Wifi won't turn on after rooting


问:
Disable the usage of Camera while Phone is locked
The phone Kyocera KC-S701 has a hardware button to start the camera application. Sometimes the button is pressed by accident while the phone is carried within my pocket. Is there a possibility to disable the camerabutton while the phone is locked?</p>


问:
Apps disappeared when Moto E booted
My wife turned on her Moto E 2nd Gen yesterday morning, and according to her it redownloaded everything from the Play Store. After this, hardly any application would work.

On getting home from work I investigated and found:

Webview was missing

the Gallery App was corrupt

a few other applications wouldn't start

Installing Webview fixed most problems, and Gallery App needed reinstalling too. The few other applications are third-party ones, and I will reinstall those as we find they don't work.

Why did this happen? Is it a known bug in Android, or something more serious like a hardware problem?

(The phone has an SD card slot, but we don't use it)

Title: Apps disappeared when Moto E booted


问:
Can I fake phone sensors data?
Context :

Most of my LG G3 sensors are broken following a water damage.

The main problem is the broken auto-rotation sensor that prevent me of taking photos in landscape mode.

I known some applications allow to manually set phone rotation to landscape but it is not what I am searching because it not working on the stock Camera application (witch use auto-rotation sensor to define the orientation of the phone).

Moreover I can not use other Camera application because of the bad photo quality (because of LG closed source framework).

Question :

Is that possible to fake data incoming from the auto-rotation sensor to make the phone think it is held horizontally ?

My phone is rooted, is that possible using a Terminal an application or anything else ?

Thanks in advance for your help.

Title: Can I fake phone sensors data?


问:
How does cLock retrieve the weather information?
I'm running a Cyanogenmod 12.1 nightly with AFWall 2.0.0 installed. AFWall seems to work as expected, except for the Yahoo! Weather service integrated in the cLock widget!? Even if the firewall is enabled without any exceptions I am able to refresh the weather and retrieve possible locations.
This, however, is only possible using the Yahoo! Weather service. If I switch to the OpenWeatherMap service I am not able to update the weather information..

I already installed a network monitor (Network Log), but the log doesn't record any 'suspicious' traffic..
I was able to block the Yahoo! Weather service using AdAway together with a selfmade hosts-list.

However, I'm currently a bit lost. How does the cLock retrieve the weather information from Yahoo! Weather? Why is AFWall not able to block it? And why don't I see anything in the Network Log tool?


问:
Nexus 4 won't stay connected to WiFi after 5.1.1bis update
A week or two ago, I got an OTA update for what I now assume to be the second 5.1.1 release, which I will henceforth refer to as "5.1.1bis", and references to just "5.1.1" will mean the originally released version. (By the way, thanks, Google, for reusing the same version number instead of giving it a unique identifier.) I assume that 5.1.1bis is intended to fix the StageFright vulnerability.

Since the 5.1.1bis update, my phone has been unable to stay connected to WiFi networks for more than a few minutes at a time. It will connect, then stay in exclamation mark mode for a seemingly long time (5s or more?). It then works fine for a while, ranging from 10s to a few minutes, then drops the WiFi connection, connects to cellular data, then reconnects to WiFi after a minute or two, ad infinitum.

This makes WiFi virtually unusable.  The constant switching between WiFi and cellular data also, unsurprisingly, makes my battery life awful. It's so bad that one night my phone ran out of power while it was charging. I ended up putting the phone in airplane mode to charge while I slept.

This problem seems to exist regardless of the specific WiFi network. That is, it did it with my home WiFi, at friends houses, at restaurants, etc. It doesn't seem to have to do with any particular router or congestion or interference, since it seems to happen everywhere. In addition, my other WiFi devices at home don't seem to be affected. I conclude that it must be a problem with the phone.

The phone was in need of a factory reset anyway, so I did that. It didn't seem to help.

I then installed 5.1.1 via USB, which also cleared all of my data in the same manner as a factory reset. Since I did this, everything seems fine, but I remain vulnerable to StageFright.

I suspect that the radio firmware is flawed, but I can't seem to find any reports of anyone else experiencing the same problem. I suppose it's possible that the radio firmware update didn't apply properly, but it seems like, if that were the case, it wouldn't work at all.

I could try upgrading to 5.1.1bis again, but I've already reconfigured my phone twice and I don't really want to have to do it again.

Can I upgrade just the radio firmware to see if it causes the same problem under 5.1.1? If so, can I downgrade the radio firmware without resetting the phone?

If it turns out the problem is the new radio firmware, can I run 5.1.1bis with the old radio firmware?

Any other ideas?


问:
How to locate Android mount points?
It all started with an intent to install Link2SD to my in-car Android audio system. Repartitioned SD card into FAT32 + Ext2, but something went wrong ("Mount script cannot created" by Link2SD, etc.). So I've done some research and eventually messed something up and now I've got 2 partitions mounted into the same directory!
My SD is /dev/block/mmcblk1 with /dev/block/mmcblk1p1 for FAT32 partition and /dev/block/mmcblk1p2 for Ext2.
mount says both partitions are mounted to the same /sdcard/external_sd location.
I was trying to locate a place where these 2 mountpoints are coming from but with no success. I know there's no /etc/fstab at Android, but /etc/vold.fstab has nothing about mmcblk1 or /sdcard/external_sd. I've looked through all init.*.rc scripts in root but found nothing either.

So where is a place that mounts those 2 partitions??? I've got no more thoughts left except for grep -nwr / -e external_sd, but it takes forever to complete and it's not that easy to surf results with touchscreen only...

The system is HiCES: Android 4.0.something with LOTS of stuff on top; quite buggy and unstable - not sure that anyone has experienced same problems on the same system :)

Title: How to locate Android mount points?


问:
How to root my Karbonn A51+ Mobile?
My phone is not rooted. I'm using a Karbonn A51+ Mobile.

It's running the Stock ROM:  Android 4.4.2 "KitKat".

I have tried some apps to make it rooted like Kingo, Iroot, Framaroot and a tool like SRS Root Tool

Screenshot; I'm getting this error while trying with Framaroot:

 (Click for larger variant)

Please do help me to root my phone via PC or anything else?

Title: How to root my Karbonn A51+ Mobile?


问:
List of icons for Moto G 2nd Generation running Android 5.0.2
I have a Moto G (2nd Generation) running Android 5.0.2.  I am new to both the device and to the Android OS, and would like to understand the meanings of the various notification icons present across the top of the home page of the device. Is there a list provided by Motorola or Google?

Note: I know about this related question but that link is specifically for a Samsung Droid Charge model, and is also dated.

Update: The link mentioned in the possible duplicate is a list of "suggested" icons from Google, and is not helpful.


问:
Cannot seem to lock GPS, what else can I try?
With the other answers outdated, I'm asking again: what can I do to make my GPS work? It worked before, but for some reason it just ceased to lock. I haven't done anything to the phone to make it not work.

Phone: LG G3 vs985 - CyanogenMod 12.1 8/27 nightly build - stock kernel - 8/24 GAPPS

GPS is set to high accuracy. WiFi is on. The phone has been restarted, wiped, restored, yelled at, and it still cannot lock.

FasterGPS has the configuration set to NA/US. I had reset it originally, and recalibrated my phone with the GPS Status app. No GPS lock was had.

The phone is literally outside of the building with clear skies.The case and the back is removed, and it still cannot lock GPS.


问:
I can't install any apps when I don't have a SD Card in my phone!
I've a problem on my SM-G350. I once set my install location to extrenal via ROM Toolbox Lite. I took out the SD card one day and the other day I tried to install an app and it said that I can't install it to my standard install location, which was fine. I connected it to adb and typed in pm set install-location 0 I got no error message (I got no message at all), and so I thought it worked, but it didn't. I also entered the command so that everything will be installed on the internal storage but that didn't help either.
What else could I do or what could be the cause of this problem?

Samsung Galaxy Core Plus (SM-G350)
Stock ROM (4.2)


问:
How to get the manufactured date information in Android?
In old Nokia phones we get the manufacturer information and manufactured date, purchase date, no. of repairs done etc using the codes like *#92702689# , *#0000# and *#06#. While only the *#06# works since its mandatory to include this code by the manufacturer for showing the phone's IMEI number.

Is there any way or an adb command we can get those information in an Android phone? Atleast a way to get the manufactured date information. BTW, my Moto G2 is not rooted and running Android Lollipop 5.0.1.


问:
How to remove monkey test and time service?
I am using a Micromax Canvas A116. It's not a rooted phone. I've done a factory-reset, but still malware app existing. How to remove monkey test, time service in mobile phone? And everytime phone gets reboot and unwanted apps like get touch, paytm etc., get installed. How to resolve this?

Screenshot (click to enlarge)

I tried all the possible ways suggested in this


问:
How do you run a virtual machine in Android?
I had an idea, run Chromium OS on Android. I got myself a tablet off eBay and I am wondering how do I create a virtual machine on the tablet itself. The image is a .img or I can get it as a .vdi if needed. I am stuck at what to do now.

Do I need an app for the tablet (Acer Iconia Tab 8) or do I need to root it to do anything?


问:
Copying DCIM/Camera images causes hang/reboot
In 5.1.1 lollipop, I'm trying to transfer to a Windows 7 PC via USB some 19GB of images/videos using either Windows copy or Picasa Import. Whether or not I use MTP (Media device) or PTP (Camera) on USB, the result is the same:

after some time 4+ minutes, the connection drops;

it's not always the same file that is copying when the failure occurs;

the phone becomes unresponsive -- sometimes the screen freezes, sometimes everything just slows down;

eventually, Android reboots.

I have Android Studio and looked at the adb log. Here are messages just around the crash time (I think the stack trace is when Android reboots):

```<code>08-29 17:21:44.108      199-264/? I/ThermalEngine﹕ TM Id 'SKIN_THERMAL_management_1' Sensor 'xo_therm_pu2' - alarm raised 1 at 40.0 degC
08-29 17:21:44.112      199-264/? I/ThermalEngine﹕ ACTION: CPU - Setting CPU[0] to 1958400
08-29 17:21:44.112      199-264/? I/ThermalEngine﹕ ACTION: CPU - Setting CPU[1] to 1958400
08-29 17:21:44.112      199-264/? I/ThermalEngine﹕ ACTION: CPU - Setting CPU[2] to 1958400
08-29 17:21:44.112      199-264/? I/ThermalEngine﹕ ACTION: CPU - Setting CPU[3] to 1958400
08-29 17:21:44.123      199-264/? I/ThermalEngine﹕ ACTION: LCD - Setting max LCD brightness to 229
08-29 17:22:05.211      906-906/? I/Choreographer﹕ Skipped 3428 frames!  The application may be doing too much work on its main thread.
08-29 17:22:06.098      199-264/? I/ThermalEngine﹕ TM Id 'battery_LCD_monitor' Sensor 'batt_therm' - alarm raised 2 at 340.0 degC
08-29 17:22:06.111      199-264/? E/ThermalEngine﹕ override action 7500
08-29 17:22:06.112      199-264/? E/ThermalEngine﹕ Thermal-Server: Thermal received msg override 7500
08-29 17:22:06.115      199-264/? E/ThermalEngine﹕ override_notify : SS mode 1 override 7500
08-29 17:22:19.346      745-813/? I/Process﹕ Sending signal. PID: 906 SIG: 3
08-29 17:22:19.349     745-1049/? I/Process﹕ Sending signal. PID: 745 SIG: 3
08-29 17:22:19.354      745-751/? I/art﹕ Thread[5,tid=751,WaitingInMainSignalCatcherLoop,Thread*=0xb4828c00,peer=0x12c020a0,"Signal Catcher"]: reacting to signal 3
08-29 17:22:19.354      906-916/? I/art﹕ Thread[5,tid=916,WaitingInMainSignalCatcherLoop,Thread*=0xb4a23000,peer=0x12c000a0,"Signal Catcher"]: reacting to signal 3
08-29 17:22:19.356      745-751/? I/art﹕ [ 08-29 17:22:19.356   906:  916 I/art      ]
08-29 17:22:19.385      745-751/? W/art﹕ Suspending all threads took: 28.517ms
08-29 17:23:14.174      906-916/? I/art﹕ Wrote stack traces to '/data/anr/traces.txt'
</code>```

Because the device is not rooted, I can't view /data/anr/traces.txt.

I see a similar problem has been logged in the Picasa forum. There's also one reported on Androide.SE here.

Is my device overheating?


问:
Can't show the content of /sdcard of my Android phone from Ubuntu's Nautilus or FileZilla via sftp
I set up a ssh server on Android using SSH Server by Ice Code App.

Settings of ssh server:   http://i.stack.imgur.com/ZlbzJ.jpg
http://i.stack.imgur.com/b1X4i.jpg  http://i.stack.imgur.com/CgT4d.jpg

Settings of ssh user t: http://i.stack.imgur.com/DHxMT.jpg http://i.stack.imgur.com/efqVA.jpg

After upgrading from Android 4.3 to 4.4.2,

sftp from Nautilus or FileZilla in Ubuntu to Android can't read or write the content of /sdcard any more.

But ssh and scp from terminal in Ubuntu can still read, write and transfer files in /sdcard.

I connect  using the same ssh user t in sftp from Nautilus, and ssh and scp from terminal, although why is the ssh prompt  u0_a116@C6730 rather than t@c6730?

If they indeed use the same ssh user, why is there  the difference in read permission?

In ssh to Android, I see the read, write and excecution permissions for "others" users are not allowed:

```<code>u0_a116@C6730:/ $ ls -l
...
lrwxrwxrwx root     root    1970-01-11 17:07 sdcard -> /storage/sdcard0
...

u0_a116@C6730:/sdcard $ ls -l
drwxrwx--- root     sdcard_r          1980-01-01 00:00 Alarms
drwxrwx--x root     sdcard_r          2015-07-22 08:05 Android
drwxrwx--- root     sdcard_r          2015-08-18 22:41 Cardboard
drwxrwx--- root     sdcard_r          2015-08-20 19:40 DCIM
drwxrwx--- root     sdcard_r          2015-08-29 21:22 Download
...
</code>```

I guess my ssh user t belongs to the "other" group. but don't know how to confirm that. I couldn't add the permissions:

```<code>u0_a116@C6730:/sdcard $ chmod -R a+r Download/
Bad mode
</code>```

What does the "Bad mode" error mean?

What are some solutions?

Can I change file permissions on Android directly?
Do I need root? But I heard that rooting my device Kyocera Hydro Icon with Android 4.4.2 isn't possible due to locked bootloader?

Can I downgrade Android from 4.4.2 to 4.3?

Can I upgrade my ssh user account to be one level above "others", so as to have write and read permissions? Do I need root? Will that solve the problem, given the difference in read permissions between sftp from Nautilus and ssh and scp from terminal under the same ssh user?

I found a discussion at http://forum.xda-developers.com/google-nexus-5/general/sdcard-problems-upgrading-android-t2938749
, where the suggestions seem to require root,  right?
Thanks.


问:
SystemUI/lockscreen malfunction on DROID Turbo
I have a Motorola DROID Turbo running Android 5.1, unrooted, and I cannot unlock the phone because the lockscreen does not appear. This problem started occurring after the phone ran out of battery and powered off normally (not forced shutdown).

With the screen on (black), I can hold the power button to bring up the power menu and reboot into safe mode. I can take screenshots, but I cannot change the volume. Hardware navigation buttons do not work (back, home, recents, or menu), and I cannot swipe up for Google Now. I can see my custom lockscreen, SlideJoy, and I can see the time, but I cannot interact with it, and the notification bar is also missing (telltale signs of com.android.systemui not running).

Here is what I have tried so far:

I have removed the SIM card to try to trigger the lock screen. Did not solve the problem.

I have wiped the /cache from recovery. Did not solve the problem.

I have booted into Safe Mode, so my custom lockscreen would not load. There is just a black screen when I try to turn it on. Touch inputs work (I can interact with power menu) but trying to interact with the black screen does nothing.

I have tried to connect it via USB to try ADB commands, but I have yet to permit any computer RFIDs.

I am only willing to wipe /data as a last resort.


问:
To what forms of "Where are you" will Google Hangouts afford a "Share your location" button?
When asked "Where are you now?" by another person in Google Hangouts, the app will offer an action button for you to send your location to the person:

What other forms of that phrase will work? So far, I know that these do, with or without the punctuation:

Where are you now?

Where are you?

Where you at?

OwnerDisplayName: Jesse Jackson


问:
Phone not booting after flashing Hyperion 9
I followed the steps on this link to install Hyperion 9 on my old Samsung Galaxy Y. After completing the installation and rebooting, the phone is stuck at the Samsung logo start screen. I have tried redoing the whole installation a few times, just in case, but only to get the same result. I waited for around twenty minutes at the Samsung logo each time. I previously tried two other ROMs which do take time on the first boot, but the wait (~3 minutes) is after the Samsung logo screen, i.e., at the ROM's own logo screen, and everything was fine after that.

I had installed something with "EXT4" for one of the earlier ROMs. I'm not sure if this might be preventing Hyperion from starting.

What could I do?


问:
Kingo Root - require networkconnection
I would like to know why Kingo Root wants networkconnection when one clicks the "one click"-root button? I read a thread on XDA-forum that you could disable network-connection during root to protect things to be transmitted to a remote server (important data such as the EFS-folder).

So - Is there any reason the app wants me to be connected to internet when rooting? Should I be worried?

Title: Kingo Root - require networkconnection


问:
"Can't play this video" when trying to play downloaded DailyMotion video
From one of the answer in Copy synced videos in/from Dailymotion,

Go to the cache, and find the file that you want to play. There will be 2 files with the same name, one will be only a few kb, the other will be the video (should be a few MB).

Long press on the file until you get the menu. Then select "open as", then "video", then select a video player.

I did that process, but when I select "video", after buffering it shows a dialogue that says "Can't play this video".

Any solution to this problem?


问:
Avoiding facebook messenger sounds and icons while synchronizing messages
I have an android Samsung S4 phone.

As far as I can remember Facebook Messenger app has always had this annoyance: when I connect my cellphone to the internet the app synchronizes and downloads all the past messages as a conversation history.

The problem is that every old message is downloaded and notifications are continuous since those messages are new for my cellphone. It's a continuous ringing sound since old messages are treated as new, the small chat icon is also constantly present on the screen per each contact I contacted before my cellphone's update.

I would like the app either to synchronize silently or not to synchronize at all since it seems to ignore the synchronize/don't synchronize button I have in the top bar.

I need to use facebook messenger to communicate with some friends who just use facebook but this problem is terribly annoying me.


问:
open viber audio(.ptt) files on pc or phone
my viber history got corrupted, but luckily i have backedup the important conversation i needed into text format using (backup text for viber). it might have been the reason that corrupted the history since it got corrupted right after i backedup that one conversation.

the problem is the audio files are there in the viber media, but they have no extension,and i can't open them, i tried every program possible but i couldn't find a way to do it. is there a way to be able to open them on pc or phone?


问:
WhatsApp - Set message sound that's different from contact ringtone?
On my Android phone, I've set my wife to have a specific ringtone (through the built-in Contacts app). Now every time she sends me a WhatsApp message, I get alerted with this ringtone.

I'd like to keep my wife's ringtone for incoming calls but have a different (shorter) tone sound when she sends me a WhatsApp message. How can I do this?


问:
Native Support for Settings Profiles
Does anyone know if stock Android natively supports settings profiles, or if there is any plan to do so? To be clear, I am not talking about the user profiles feature that was introduced in Lollipop, but rather settings profiles that allow you toggle settings (e.g. WiFi on/off, GPS on/off, etc) in bulk based on a pre-defined set of profiles (Home, Work, Silent, etc.). I was first introduced to this feature via CyanogenMod, and loved it. I'm currently using a third-party app to achieve the same effect, but this seems like the sort of thing that should really be native to the OS itself. I've tried googling, but all I can find is information on the new users profile feature and third-party apps.</p>

Title: Native Support for Settings Profiles


问:
How to reboot Sony Xperia V?
How can I reboot Sony Xperia V?

If I long press the physical power button, it only gives me an option to shut it down. If I long press that button, it actually asks me to reboot the phone, albeit in safe mode. I don't want that, I just want to reboot in unsafe mode.

ContentLicense: CC BY-SA 4.0

Title: How to reboot Sony Xperia V?


问:
Move to application in sd card in htc desire 620
I have android phone htc desire 620 I want to move my all apps in sd card. I have tried but not able to do it. generally in another phone options is available in setting->apps->move to sd card
but in my phone it's not available so please suggest me how can I transfer my app to sd card</p>


问:
Retrieving data from a Nexus 6 motherboard
After a failed attempt to replace a broken screen on my Nexus 6, I was left with a Nexus 6 with a screen that no longer displayed anything. Yesterday, when I went to try to fix this I found that the battery had bloated out (exploded) which meant I had to throw the battery away.

All this now leaves me with a nexus 6 motherboard attached to a non-usable screen and no battery.

Since I am unsure at the moment if its the connection to the screen or the actual lcd that has broken. I don't want to spend money on new components to fix it (yet)..

So my question..

Is there anyway to retrieve data from the internal storage of a Nexus 6 from its motherboard alone?

If it were possible I'd imagine it would work in a similar way to using a laptop with the battery unplugged; powering the device from a usb cable and the fact that my android setting means that a computer would recognise it as a storage device so that I don't need to interact on the device at all..but then I don't know if usb alone would be enough to power the motherboard.


问:
How to Pause Chromecast Screen Mirroring
TL;DR: How do I, when casting my device's screen through the Chromecast app to a Chromecast, pause the stream? Aka, the Chromecast shows a fixed image of my screen while I change screens on my phone.

More Info

Specifically, I've been using my phone to help me run a D&D campaign. I want to be able to show pre-designed maps on the screen, but also be able to swap to my notes on Google Drive (obviously without the players seeing those notes). I know I can stop/start streaming, but that doesn't leave the image on the screen, and is a lot of extra work.

The low-tech solution I have right now is just using a notebook for my meet notes, but I would like to be able to use my phone for most of it if I can.


问:
ES File Explorer unable to access `/storage/emulated/legacy` which it did earlier
I suddenly have a weird problem with the Android phone running version Android 4.2.2. I never rooted the phone but suddenly the app ES File Explorer is not able to access /storage/emulated/legacy which it did earlier. This contains my photos, videos and the likes. Even some of the apps are beginning to crash when I try to open them. I cannot even connect to Wi-Fi. I can only call and read/send SMS.

I tried using ADB to access the file system. See the result of ls -l on /storage/emulated/legacy,

```<code>shell@G20:/storage/emulated $ ls -l
ls -l
lrwxrwxrwx root     root              2015-09-01 03:41 0 -> /mnt/shell/emulated/0
lrwxrwxrwx root     root              2015-09-01 03:41 legacy -> /mnt/shell/emulated/0
</code>```

And if I follow the /mnt/shell/emulated/0 symlink, the following is the actual permission,

```<code>shell@G20:/mnt/shell/emulated $ ls -l
ls -l
drwxrwx--x root     sdcard_r          2015-09-01 19:53 0
drwxrwx--x root     sdcard_r          2037-12-31 05:31 legacy
drwxrwx--x root     sdcard_r          2015-08-20 12:45 obb
</code>```

I'm wondering how might have this happened. I never rooted my phone and is still under warranty so, I cannot root. Hence, solution without rooting will be highly appreciated.


问:
treat wifi network X as cellular OR disable background wifi upload for one particular app on one particular network?
On a Nexus 5 running 5.1.1, I have the DS Photo from Synology set to do automatic background uploading of new photos/videos that show up to my NAS.  Normally works great.  The app includes a setting for whether to upload only over wifi or to upload over both wifi and cellular.

The one problem is that the phone uses cellular data via a hotspot, so while the phone sees it as just another wifi network, I really want it to be treated like cellular.

Even though I went into settings -> data usage -> network restrictions and marked the hotspot as 'metered usage', the DS Photo app still uploads new videos over it.  I'm guessing DS Photo would need to change to actively check this 'metered usage' flag and behave differently.

The 'best' fix would be to somehow have that hotspot's wifi connection treated like cellular across all apps.  Since DS Photo already has the 'wifi-only' support, that would be sufficient for this scenario.

Lacking that capability, I'm trying to figure out how I can make it so that one app isn't allowed to talk over that one wifi connection.

I tried Tasker, but it appeared to only trigger the profile of an app when it was the foreground app.  It would disable fine if I actively switched to the DS Photo app, but if it was just starting an upload in the background like normal, Tasker didn't didn't prevent it.

I also tried the approach from this answer and had it disable Auto-Sync when connected to that particular wifi network, but the DS Photo app still uploaded even though Tasker had disabled Auto-Sync :(

Thanks!


问:
How to simulate keypress event in recovery mode via adb?
I know it's possible to simulate a keypress event in Android via adb using a command like:

```<code>adb shell input keyevent 24
</code>```

The command above will trigger a Volume Key Up event, for example.

My problem is, my volume key is broken. I can get access to recovery mode using adb reboot recovery, but how can I navigate in recovery mode while my volume button is broken?

I've tried to use adb shell ... commands as above but it said that the "input" binary was not installed.


问:
Tablet report as charging with the charger unplugged
I'm having problems charging my Samsung Tab 2 device. It is reporting as charging after I unplug the cable, and when charging, it is drawing a small current from the charger. I've measured and it gets stuck at 500mA.

When I use the fix of "pressing all the keys during 10 seconds" that is supposed to reset the charging circuitry, the charging process becomes ok, I believe, and it then draws over 1 Amp but, if I unplug/plug again, the situation repeats, and it then begins just drawing a fixed 500mA value.

Basically, when I disconnect the charging cable, somehow, the device becomes erratic.


问:
I own a rooted Moto E with very little usable internal memory. But it does have a MicroSD slot. Can I change its default storage?
I own a rooted Moto E.

It has about 2GB of usable internal memory.  It frequently runs out of memory.

Luckily, it also has a MicroSD card slot.

Can I change its default storage?


问:
How to recover Nexus 5 data from memory chip
Edit 2:
My Nexus 5 doesn't boot up the OS or the Recovery, but it boots the Bootloader. The service people speculate that the power IC isn't able to supply enough power for the first two but it's enough for the bootloader. I have flashed a new 5.0 image using fastboot, and all fastboot operations report success. So I'm pretty convinced the internal memory is fine.

How do I recover my data? I don't know any fastboot method to do it.

Is there a way to connect the motherboard to an external power source so that adb works and I can read the data?

Is there a way to remove the memory chip and read it using a card reader or something?


问:
Rooted but su says “Permission denied”
[ I first asked this question on stackoverflow by mistake.  ]

I have this "old" Lenovo A2107 tablet which I rooted years ago (using a download from http://androidforums.com/threads/a2107-root-mods-and-rom-discussion.661261/, tho running its root.bat script by hand from my GNU/Linux machine) and that worked fine: I could "su" from the shell and then edit all the files I wanted.

Then I passed this tablet to my daughter for a couple years, and now I got it back.

/system/bin/su is still present, still the same date and size, still mode "rwsr-sr-x", still the same firmware (Android 4.0.3) so all looks fine, but when I try to run it from a shell, it just tells me "Permission denied".  And of course, other applications that require root bump into the same problem.

Any idea what might be going on? What I could try to do to track it down?

[ See also https://stackoverflow.com/questions/32353148 where I posted the solution I encountered.  ]

Title: Rooted but su says “Permission denied”


问:
How to apply changes to keyboard layout without reboot
After playing with keyboard layout at /system/usr/keylayout/.. the changes are take effect only after a system restart. How to apply the changes immediately ?

Additional details

Phone : Samsung galaxy chat - gt B5330

OS : ICS (stock) ,rooted

file correspond to physical keyboard : bcm_keypad_v2.kl


问:
Backspace deletes too fast
In my android 4.1.2 samsung galaxy s3 mini, when I'm writing sentences, sometimes I want to delete words because grammar mistakes or whatever reason, problem is if I hold backspace after a small time starts to delete at a uncontrollable wild fast pace, and that makes impossible to control and delete messages difficult. It would, for me, be much better a constant speed much slower like windows, letter by letter and not word by word. Is that a serting somewhere?</p>

Title: Backspace deletes too fast


问:
Which filesystems with wear leveling does Android support?
So I bought 64gb micro SD card which was formatted as exFAT. I can't use it with Android and I am actually very happy now that I have a good reason to get rid of this ms crap. In particular I do not want to use FAT32 or NTFS because neither of these have a wear leveling functionality.

Which filesystems with wear leveling does Android support?


问:
Androidhwext Is it a System/Vendor App or Third Party App
Is the Android App Androidhwext part of the Android System or Huawei Standard apps or is it a third party app?

I am concerned its a virus app due to the amount of permissions it asks for. I am unable to uninstall it but this may suggest its a system app?


问:
Enable bluetooth tethering via command line
Is there a way to activate the bluetooth tethering mode in Lollipop using the command line? You can do it for usb tethering by running the command
service call connectivity 30 i32 1
Is there a similar way for bluetooth tethering? (my problem is that it turns off at each reboot)

Thank you!


问:
Music player without files
My music player suddenly stopped and it says there are no songs.

But in fact, there are songs in my SD-Card.

I had a similar problem that is the gallery didn't display images and also I have deleted a nomedia .txt file in internal folder to fix it.

Any suggestions? I'm using samsung galaxy s3 mini which runs on android 4.1.2

Title: Music player without files


问:
Custom recovery failing to flash on Nvidia Shield Tablet
I am having problems rooting my Shield Tablet. It is the new B01 version with update 3.1, Android 5.1.1. I am trying to root using this guide, and I have successfully unlocked my bootloader, but flashing the custom recovery is where the problem lies.

I used fastboot flash recovery recovery.img, and it worked last time on Android 5.0.1, Shield update 2.2.2, but now after I flash it and go into recovery mode, it brings me to stock recovery.

I need to do this to root. Do you know how to fix my problem, or another rooting method that has been checked and works?

PS. I tried with TWRP, still no luck.


问:
Nexus 7 2013 wi-fi stuck at google logo after rooting
I downloaded AOSP (5.1.1, API level 22), made changes in the init.rc, and added the su binary / SuperUser packages to the build. I also added proprietary binaries relevant to nexus-7 flo (for Android 5.1.1 (LMY47V)). I then built the entire source tree to get a package (.zip) containing the required .img files and Android-info.txt. I then do a fastboot -w "zip file name with all imgs".

This runs and the device gets stuck in the "Google" screen with a lock icon. It does not go beyond that even after hours. However, I can access the tablet via ADB and I also get root shell. What am I missing here ? Is there a version mismatch somewhere ? How do I check if that is the case.

Additional details :
Device is "flo". At the launch menu I selected "flo-userdebug".
Repository sync is to the latest android version I think. I checked the version in build/core/version_defaults.mk.

What could be the issue?


问:
Is there any browser that allows to view the source?

Possible Duplicate:

  How do I view source in the Android browser?

I miss this feature. How to do that? Is it possible with the default browser?


问:
How to set Spotify as default Music Player?
I want spotify to appear in the drop-down menu instead of the default music player. Is this possible?

(I stream all of my music, so I don't need the default music player).

(By "drop down menu", I mean the one you drag down from the top of the screen -- the place where you can see everything that's going on. Is there a name for that "place"?)


问:
How to change the Android emulator phone number
Is it possible to change the phone number of mine on the android emulator, just like Genymotion which is always show me 1-555-521-xxx number. any ideas would be nice and appreciated.</p>


问:
How to access internal memory of android device with a broken display and without root permission?
My Samsung Galaxy Grand has a broken display. I need to access my media files( Photos and Videos ) from the internal memory of the device.

What I have tried -

Tried with Samsung KIES.

tried to connect via adb to the device but It's not on USB debugging.

Managed to put the device into recovery mode, but on adb shell mode. I'm not able to see any files under sdcard and sdcard1. Also my device is NOT rooted so I cannot use su command

What should I do now to copy the files off the internel memory?


问:
Is there a way to disable/remove screenshot soft button or remap it for some other function?
I have 7" 4.2.2 tablet for everyday use and it have 2 additional soft buttons. Rightmost one is a "screenshot" soft button (please find picture below). My problem is what I rarely take screenshots intentionally (Vol- + Power is more than enough for me and produces better quality screenshots) but this button and its position causes literally a tons of accidental screenshots. Even worse, this button remains fully functional even when device is locked.

(Click image to enlarge)

It there a way to disable this soft button (at least for lock-screen)? Or remove it completely? Or even better, to bind for some more useful function?

FWIW, tablet is Mediatek-based and I have a root.


问:
Bluetooth HCI Snooping integrity
For a project I am sniffing bluetooth communication between an embedded device and my android phone. To make this work I enabled the Bluetooth HCI Snoop log option on my Android phone in developer options. The bluetooth used is Bluetooth LE (Bluetooth Smart)

The embedded device communicates through bluetooth with an app installed on my Android device. Opening the created log file with Wireshark I found some interesting results. I compared my results to that of an example bluetooth capture file and noticed that about half of communication is not present in my capture log.

In my capture log there is no PIN code request/reply, no connection events (only disconnect), no link key messages and no SDP or L2CAP protocol usage.

I don't understand why I am getting these strange results and I  wonder if the entire bluetooth connection and communication process between embedded and android device (including the app) is not captured

Title: Bluetooth HCI Snooping integrity


问:
Rooting Lenovo A600Plus Running on Lolipop 5.0
Previously before the OTA update I have rooted my phone with KingRoot.

While I was Updating the rooting creating problem for me so I unrooted the Phone.

Now I want to root it again I want to know will the Kingroot still Works or not.


问:
App-specific passwords not working anymore under Android 5
I am using multi-factor authentication for all my Google accounts.

I am pretty sure that I once used app-specific passwords on my Android (that time version 4 of Android) devices to authenticate.

Yesterday I reset my device and also the app-specific passwords I created earlier. I recreated new app-specific passwords.

Then, after having restarted my freshly reset Android device I tried to add one of my Google account after the other. As part of that I am, for each single account, first asked for my mail address and password. But, for whatever reason the app-specific passwords are just not accepted. Once entered I am just prompted again and asked for my password. Fascinatingly Google seems to recognize that the password is correct, because if I enter a wrong one on purpose I really get an error saying that the password is wrong.

Entering my "main" Google password works and leads me to a UI then asking for my Google Authenticator code.

Are app-specific passwords no longer support for adding my accounts on Android or am I doing something wrong?

Thanks!


问:
Automatically transfer files from a specific folder to computer and delete them on the Phone
Given limited storage space I want to automatically transfer files in a specific folder on my phone to my computer and delete the original file on the phone to safe space.

What's the best setup to do this?


问:
No Google Apps on Android Device Emulator
I have an Android Virtual Device set up on Ubuntu 14.04 LTS, but it doesn't seem to have any Google Apps when I start. The main purpose is to do some app testing and security analysis, but I need to install a few apps for that. The system doesn't permit any downloading too (I tried to download the apk) as any download attempt results in a browser crash. I tried the drag and drop method, to flash the gapps.zip file, but that didn't work. As of now, I have no Play Store from where I can install other apps. Please help. The device is a Nexus 5.</p>


问:
access files of app and run-as command alternative for debugging
I try to access data\data folder without root because I want to access some downloaded files by the app and I have realized the files download in data directory. I have tried to pull to sdcard but as in the picture it is not debuggable. So now, what can be done? Isn't there any way to access the files or grab the files without root privileges?


问:
How to disable the "Application permissions" dialog that pop up during each new app install?
I have a Samsung Galaxy A5[18] running Android 4.4.4. Every time I install a new app this dialog comes up:

Is there any way to disable this feature?

I'm doing app development so I have to install my development app hundreds of times a day, making this dialog extremely annoying.


问:
How to open simple html file in Orweb browser?
I have installed Orweb(Android equiv of tor browser), Orweb doesn't appear to allow bookmarks only a homepage, no problem I'll just create a simple html page containing a list of links and set this as the homepage....

Via ES Explorer I tried setting the html file to open in Orweb using 'open as' but Orweb is not listed in the app list.

I tried opening the file in Orweb by pasting a direct link to the file in the address bar, but Orweb then insists on searching the web for the link string.

I tried setting Orweb as the default browser using 'default app manager' which seems to be accepted, but when I try to open the html file it still asks which app to use and again Orweb is not in the list of apps.

Ideas?


问:
Can't uninstall package disabler app
I'm trying to remove package disabler from my phone as i have upgraded to the pro version but i seem unable to.

The app is marked as device administrator, but when I go to the menu the app is checked and greyed out so I can't remove administration rights to the app.

I tried removing it also with root uninstall app.  But no success there either.

What could I do?

Thanks

Title: Can't uninstall package disabler app


问:
White Screen on Note 2, cannot flash and cannot access recovery mode
Tried to do factory reset from phone settings but now only a white screen appears. I cannot access recovery mode but I can access download mode. Tried to flash it with odin but it seems the PIT table was not found. Tried to do a repartition with a PIT file but Odin returns a fail. How can i recover the PIT table?</p>


问:
Wifi Error when turning on

Possible Duplicate:

  How can I fix the WiFi button or prevent WiFi errors when turning it off and back on?

After I turn on my phone (a Samsung Galaxy I551) the wifi works great. After some times of turning it on and off it gets screwed and when I try to turn it on it displays "Error", without any further specifications. I found a lot in some forums but I couldn't really get any solution.

It is really annoying because I generally don't turn off my phone so now I have to reboot it frequently.

I can't relate this with the opening of some app or something like that :(

Thanks for any help!

Diego

Title: Wifi Error when turning on


问:
Genymotion + VPN
I am running Genymotion on a MAC. I tried the changed settings in Virtualbox on Adapter 2 to "Bridged" also trying NAT / NAT Network but it does not work. It runs fine on my physical Android device.

I am using Wifi on my Mac to connect to the internet.

Can someone give a hint what i am doing wrong ?

Virtual Box Screenshot  http://i.stack.imgur.com/HwHmf.png

Title: Genymotion + VPN


问:
"Android is starting..." & "Optimizing app" @ 2014 Moto X 2nd Gen
I'm using 2014 Moto X (2nd Gen) and lately I keep getting:

Android is starting... & Optimizing app whenever I start my phone(

I tried to clear wipe cache partition, but that did not help towards resolution of my issue.


问:
No 'Add google account' option
So  I have a rooted S3 Mini VE (i8200) with stock custom rom (samsung apps and gapps but with custom theme). I just installed it recently. I could add my google account successfully. I was playing with greenify cut-off (com.marvel.ppgadget WakeupThing), the ap just CTD. Np, i restarted it and de-greenified ppgadget. Later on, i just saw that Google App asked me to add a google account. So I went to Settings > Account and noticed that there were no google account option.

I tried disable xposed, set Greenify to non-root, removing xposed, wiping cache and dalvik cache, reflashing rom. Didn't changed anything. BTW all gaaps are installed.

Title: No 'Add google account' option


问:
bricked micromax canvas 2.2
I have problem boot my phone micromax a114 canvas 2.2

it only show start logo and nothing else.
but I can boot it to recovery mod(not any cwm recovery but factory installed recovery)
device name is mt6582

so I decided to flash its stock ROM using sp flash tool.
with option selected as"download only".
after click on the download when I connect my phone a message appears "pmt changed for the ROM; it must be downloaded"

so, plz tell me what and how to do?

and one more thing I noticed, in computer's device manager when connected the device with USB the list keep refreshing again and again every 2 seconds and under 'ports' USB vcom port keep appearing and disappearing, can anybody tell me if that is normal.
I've already installed drivers for the phone and installed vcom drivers,
and I'm using windows 8 x64

plz help. any.

Title: bricked micromax canvas 2.2


问:
Change notification light blink frequency in android 5.0
Whenever a message or call comes and is unseen, notification led blinks but with lesser frequency. I'm missing it frequently.

I want the notification light to blink at a more frequency, or be continuously lit. Is that possible?


问:
Nexus 5 Sudden Reboots and Shutdowns
I have a nexus 5 for about a year now and recently strange problems began to occur.

The phone sometimes just reboots by itself, even when i don't touch it.
Sometimes a power off button appears on the screen and when i try to do something, the phone turns off/reboots.

I have noticed that the power button has became very sensitive, pressing it too hard to lock the screen would result in the screen being shut off and then turned on again, to actually lock the screen i have to press the power button very very gently.

Yesterday i had to format the phone in order to get it to turn on, it just wouldn't turn on otherwise, i would press the power button as gently as i could, the google logo appeared but it would shutdown a second later...

After formating and reinstalling the os, i was able to turn on the phone and use it, but ten minutes ago the phone shutdown itself and now it won't turn on again...

I don't want to format it everyday, i am really suspicious of the power button and think that the problem is related to it, not only because of its sensitivity but also because i read about similar problem on forums and in most cases people related it to the power button.

What can i do?

Thanks,
Arik

Title: Nexus 5 Sudden Reboots and Shutdowns


问:
How to store list of installed (paid and unpaid) apps to a log file?
I would like to store a list of all paid and unpaid apps in a log file (which I would then upload to Google Drive or FTP to some other server). This way if my phone is lost, stolen, or breaks, I will still have a list of the complete set of apps I had been using, so I will not forget any app I installed. I know Google Play keeps a list of purchased apps in its database, but it does not store the unpurchased ones.

So, is there a script somewhere which will allow me to generate this list (I didn't see anything supporting this functionality in the stock UI, using Android KitKat 4.4.2).


问:
Unexpected crash / phone randomly turning off
i have a samsung s5 with lollipop installed.
The phone seems to randomly turn off.
The phone enters a boot loop until i plug the charger in.
It has happened several times, but i don't know how to reproduce the error.
It doesn't seem to be app specific, but it has crashed while using the following apps.
... When using the camera
... When using chrome
... When using VR zeiss

I have tried the following, but none of these have worked for me.
1. Wiped cache partition x??
2. Factory reset x2
3. Safe mode
4. Battery calibration, charged phone to 100% while off

Has anyone had a similar issue and been able to solve it?


问:
Android Printing
We have two smartphones and two tablets (variously LG, Asus, Samsung, all Android KitKat) and an HP wireless printer (3059a).

Using HP's ePrint app we can print from all devices but it's not straightforward; most of the prints we make are of emails and webpages, meaning we have to save as PDF and then print, and even then we have to laboriously specify paper size (A4) and a few other things, and to remember to delete the PDF afterwards. I have also checked out Google's CloudPrint but that's not much better.

Is there any way to set up printing for one (or just a few) touch operation?

Title: Android Printing


问:
Android: Google Play - App Will Not Install - Why?
Hello everybody I face annoying error when, whenever I try to install this app I face many errors. Ok, per usual, I tried installing it through Google Play store but whenever I do so I get this error:

error: Package File is Invalid

Ok, doing a bit of research into this error, most people have stated that it is usually a Google Play Error so I did the usual (Open Google Play Store, clear the cache & data and if fails then uninstall the app & updates, clear the Google Play framework data & cache and all other apps related to it) and no luck. I have also done this several times as well!

Ok seeing as that failed, I then decided to install apk outside of Google play store - so I got the latest apk online and proceeded to install it on my phone - installing then I got THIS message:

Application Not Installed

I couldn't believe that didn't work, then I researched into what could be causing this error (ROM, Cache, Checking Space, Maybe Even The App) so yet again I did the usual (I re-downloaded the app several times, used such apps as Root Explorer, Astro and ES File Manager to install it, clear the cache partition from boot and just check to see if the unknown sources is checked) but no luck.

I then tried to install the App via ADB and I just face even more errors.

I tried:

```<code>C:\Users\Support\AppData\Local\Android\android-sdk\platform-tools>adb install C:/com.appnana.android.giftcardrewards.apk
</code>```

and got:

Failure [INSTALL_FAILED_DEXOPT]
  rm failed for -f, Read-only file system

Researched this and got no solution so I tried going around the method:

```<code>adb install -r
</code>```

Got the same error:

Failure [INSTALL_FAILED_DEXOPT]
  rm failed for -f, Read-only file system

Guessing it was a read-only problem I searched for a way to rectify this:

adb shell sysrw
Got

sysrw: permission denied

Even tried:

```<code>adb root
</code>```

And Got:

adbd cannot run as root in production builds

I couldn’t find an answer to doing this so I tried doing other miscellaneous solutions:

Tried adb shell | su | mount -o rw,remount /system line by line and got:

Usage: mount [-r] [-w] [-o options] [-t type] device directory

Tried on my phone mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system and got

mount: not permitted

Tried adb remount and got:

remount failed: Operation not permitted

Even Tried as a way to beat this permission denied error adb shell whoami and got:

whoami: permission denied

I looked at super user with all permissions set to automatically grant before I did all of this, and I noticed that some of the permissions in the Super User where in red (more specifically red -rwsr xr x) and tried to update the Su binaries but wouldn’t let me so I went to SuperSU, and it deleted the SuperUser app, updated its self, updated the app and updated the binaries but still no luck!!!

I thought it might be the SD Card so I switched SD Cards, backed up the data then formatted the SD Card by the phone since phones can be funny on FAT32 partitions if it was not partitioned by the phone and still no luck.
Even tried Market Helper which worked on other apps which were way of Android 2.3 limitations but I still got the Package File is invalid error.

What could be wrong??? I installed the latest Java SDK with the latest ADB from Google. I installed the Samsung drivers and I have no luck. I cannot remember what tutorial I followed but root appears to be working fine. My phone is Samsung Galaxy Y S-5360 and I still have the official 2.3.6 interface and I don't want to change that. Even when I install it on the online version of the app store I get error 906, what could be wrong? The documentation of the app even says it supports 2.3 and upwards. Even if it could be the app that’s the problem I still need to sort out this ADB for important future use. Please help and a step by step guide would be greatly appreciated so much – I worked really hard on this app and I want to continue to do so, and your help would be greatly appreciated. I don’t mind doing whatever you suggest as long as I don’t lose my app layout and app data (unless you have a software which could back all of that up.)

Thank you so much

D

PS. When I type devices on ADB is shows my device as 0123456789ABCDEF, is that unusual, I felt there should be more of a unique code to my phone than... that. Thank you :D


问:
Dolphin browser, html5 no sound?
I am playing a game which is built on html5, there are sounds and work perfectly on desktop. But when I tried to open in dolphin, there is no sound, and disabling the jetpack option gives a JavaScript error even though js is enabled.</p>

Title: Dolphin browser, html5 no sound?


问:
Homescreen appears to be on while it's off
I know it sounds weird, but when I turn off the screen using the power button I have the feeling that it doesn't turn off completely.

I'll try to explain why.

I press the power button, the home-screen fades off and screen goes black. This is normal

I press the power button again, the screen is turned on and home-screen fades in. This is normal too, but it doesn't not always happen. Sometimes the home-screen appears immediately without the animation then fades off! It's like the screen is turning off again. I have to press the power button again to turn it on.

Does anybody know what could cause this issue? It only started to happen recently, I think after I updated some apps, but I don't know which. Perhaps someone is having the same problem and was able to track down the app? Could it be Nova launcher?

I'm using Android 4.4.4 on rooted Nexus 4. I tried Android 5.0 - 5.1.1 but I had bigger problems with it, like randomly going into deep sleep every day or apps crashing and forcing system restart.


问:
Whatsapp folder in /data/ parition gone
I was reflashing CM10.2 on my GT-i9300.
(Also did a backup with CWM 6 but the data partition was not backuped, which I did not noticed..)
I booted the new Rom and installed Titanium Backup to recover my apps but my all kinds of services crashed...
So I decided to upgrade to CM11 (And forgot to wipe after flashing)

Now I got a bootloop...(which is not the problem because I think afer a full wipe i will be able to start my phone again normaly)

But first i want a full backup of my /data/ partition.
So I connected the phone via ADB and the backup went through. BUT the whatsapp folder and so my chat history, pictures etc. are just gone!
I did not find any record of it?!?

So, do any of you know why? oder
is it possible to recover it somehow?
are they some hidden mirror partitions?

best regards
Chris

Title: Whatsapp folder in /data/ parition gone


问:
Bypass Internet in mobile
ur college provides wifi,but it cannot be used by mobile devices.. Wifi is connected.. Only app notification are received.. Whatsapp works(images/videos can't be downloaded.. Only text ) have tried many vpn and proxy apps.. Lately tried using psiphon.. For pc authorities have provided us with proxy: port to access Internet..tried those on mobile as well.. Doesn't work. Any solution to use the campus wifi?</p>

Title: Bypass Internet in mobile


问:
Is there a 3D photo stitching app for Android? (as an alternative to Photosynth)
Photosynth for iOS is a great app that allows you to create 3D panoramas by taking multiple photos and automatically stitching them together.

Is there any alternative for Android?

I've already tried:

Camera360, despite the name, it doesn't create 3D panoramas

PhotAF, which only creates horizontal panoramas

360, only horizontal panoramas as well


问:
What is the status of YouTube's offline viewing feature for non-music videos in 2015? (after Music Key was launched)
Not-a-duplicate note: YouTube's policies for offline content have changed many times since the questions Download YouTube Videos from Mobile? and Is it possible to pre-download a YouTube video to view it later offline? were asked.

I'm asking specifically about the what is possible and allowed AFTER Google's policies changed with the 2015 introduction of Music Key.

I gather that in 2014 YouTube allowed videos to be stored (temporarily?) for offline viewing. From articles about it I can find online (example, June 2015), this seemed to apply to all videos unless the content provider opted out.

In September 2015 I'm trying to find out what the policy is now. The only up to date official information I can find relates specifically to music videos, specifically for Music Key subscribers. It gives the impression it's (now?) a subscriber-only, music-only feature, but that doesn't seem to match what I read elsewhere. I can't find any up to date information about non-music videos, and I haven't successfully found a video that can be saved for offline use, but I might just be looking in the wrong place.

A lot of the information I've found is confusing. For example, this May 2015 PC Advisor article claims that the feature has been promised but not rolled out yet, while this earlier Dec 2014 India Today article says the feature HAS been rolled out (but might be specific to India?), and this recent August 2015 Android.SE question shows a user using the feature successfully for non-music videos. One answer to that question suggests the policy varies by country - and I can't find any country-by-country guide. I can't see any offline link for the videos that other asker had successfully downloaded.

Here's a Gizmodo article from Sept 2014 which appears to confirm that Sept 2014 launch was India-only. Apparently Indonesia and the Philippines got it too in December 2014, though it sounds like that's only for some promoted content like movie trailers (implied, not explicit). These are the only articles I've found that directly address regional differences.

I tried asking Google directly, but they refused to answer my question at all:

there isn't a support team that deals with free YouTube videos

The closest I can find online to anything representing an official comment from Google is this clearly unofficial reddit post from someone talking as if they represent google (abridged):

Each country we launch a feature like offline videos in is a legal struggle, because culture, copyright law, who owns what copyrights... We'd like to do offline playback everywhere, of course... Offline playback was really important for India, so it got launched there earlier than elsewhere. Keep an eye out, it may show up...

So if it is true it's only in those three Asian countries, that's a plausible explanation for why. But it still doesn't answer what the policy is right now.

I don't want to install non-Play apps, or root, or use a custom ROM, or do anything illegal, I'm just trying to figure out if and how I can legally cache a non-music YouTube video somewhere I have WiFi, and watch it somewhere I don't.


问:
Albumart not showing on lock screen?
On Android 5.1 on the Samsung Note 4 (sprint), the currently playing track (in any music player, Spotify, whatnot) is no longer shown as the wallpaper on the lockscreen during playback. I really liked this feature and after hours of searching I can't figure out how to get it back. I am willing to root to get it back, but I'm not sure if I can download the bootloader to get back to kitkat.

Is there a way to restore this functionality in lollipop or will I need to find a way to go back to kitkat (or get another phone on it?)

Title: Albumart not showing on lock screen?


问:
How to stop MMS text messages from sending
I have sent a message to the wrong person and want to stop it from sending.

I quickly put the phone into airplane mode,as you do to stop normal text messages, however because this message was so large, it converted into an MMS message (which I'm guessing means it uses the Internet to send rather than a phone signal.

Putting the phone into airplane mode has stopped the message from sending, however the sending icon is still appearing next to the message, which I'm guessing means it'll send once I take the phone back out of airplane mode.

Is there a way to permanently stop the message from sending? I have also tried removing the battery and pressing force stop on the messages app in application manager


问:
How can I lock my phone with a swipe lockscreen along with a fingerprint/PIN?
I have a Samsung Galaxy S5 running Android 5.0 on Verizon and would like to have my phone lock for 2-5 minutes with a swipe lockscreen after I sign in with my fingerprint or PIN. After the 2-5 minutes, I'd like the fingerprint or PIN prompt again.

I tend to bump my phone while it's in my pocket and the swipe lock screen prevents unintended actions, but I'd rather not like to put in my PIN or fingerprint multiple times in a short duration.

I had this feature with another S5 on AT&T running 5.1, but it seems that this is not the case on my current phone.

Is there anyway I can do this without using any lockscreen apps?


问:
Can apps with root access the Internet without listing internet permissions in AndroidManifest.xml?
It's my understanding that, in order to access the Internet, apps must declare internet permissions in AndroidManifest.xml. If an app doesn't declare this permission, but I was to give said app root access, would it still somehow be able to access the Internet if it wanted to?</p>


问:
Screen color changes with brightness slider. How to solve?
My Samsung Galaxy A5 is rooted and I tried to remove the boot animation with the remove boot animation option in the Boot Animations app. It removed the boot animation but then created a new problem.

When I slide the brightness slider to lower values, the screen develops a green tint and the display becomes like an 8bit display. Can anyone suggest what to do to make it normal?


问:
LG l90 led light
The L.E.D. on a LG l90 Android I recently purchased does not light up. I have tried going to setting, but can find no toggle switch to activate the L.E.D.  What should i do?</p>

Title: LG l90 led light


问:
How do I use internal memory as /mnt/sdcard?
I am using a mobile device which runs Android four and has a broken micro SD card slot. The device also has lots of free internal memory. However for some reason many applications insist on only using /mnt/sdcard or /sdcard (a symbolic link to /mnt/sdcard).

I thought I could fully get around this by utilizing the following command on my rooted android:

```<code>mount -o bind /data/local/tmp/sdcard /mnt/sdcard
</code>```

This was able to trick some applications only. For example the default camera applications that came with my mobile device prompts me to insert an SD card. Furthermore Open Camera reports that it failed to take a picture. MuPDF also prompts me to insert a micro SD card.

With that said how do I "convince" all applications that I "have inserted" an SD card? I have tried searching for questions and using Google but all results I found relate to attempts to use an SD card as internal memory -- the exact opposite of what I want.


问:
LG G Flex navigation buttons problem
A couple days ago I noticed a problem who is starting to frustrate me.
My LG G Flex (LG-D958) is having laggy navigation buttons.
If I open text messages, and my keyboard pops out to write, if I click "Home" button it wont react. It's the same with other two buttons "Back" and "Properties".
I tried to click it multiple times in a row, but nothing. But after i get out from the messages or any application where I need to use keyboard(viber,whatsapp), it's still almost the same. I also tried on the home screen clicking the home button for multiple times and it only reacts on only second-third click.
There are no dead pixels or any kid of problems on the display, the touch on any other part of the display is fine and works correctly.
Android version 4.4.2

Update 2#
I downloaded MultiTouch tester on Google Play, and by what I see the display is okay, but I cant test the navigation buttons...

Update 3

Okay, Ia managed to test the touch where the buttons are. I hid them and then started the application for multi-touch testing. And it seems that the touch doesn't react on a small part of the display where the nav. buttons are.Below is the picture of the phone. If i got more down the touch signs will disappear.

Title: LG G Flex navigation buttons problem


问:
Rooted phone no root access in bash but sh
on cm 12.1 (I know the nightlies) I experienced something very curious. at first, if I start a terminal emulator, I'm not root. I'm just the user the app is running in. so if I do

```<code>echo $USER
</code>```

it shows me I'm not root. everything is fine, I cannot use root features, I get <command>: Permission denied

everything is fine so far. but if i choose su, it asks for root access (graphically) and if yes, I'm root@A0001, If no, Permission denied. everything is also fine here, I am fully root.

but my issue is, I want to use bash and can't use it I a usable way. because if I use bash, I'm neither root nor a standard user. this is very crappy, because I'm something between that,

```<code>echo $USER
</code>```

displays sometimes root, sometimes nothing (' '). Also, I can use most commands which needs root access, but not all. sometimes commands just die with unknown error, permission denied or sometimes without any error message. Also some commands never work in bash. others nearly at any time, which are mostly non-root commands. I am pretty angry about that, because I rooted my device and use the command line pretty much, so I want to use bash features, because my bash is installed natively and I don't just use sh, which is, btw, also installed natively and not just a symlink.

so my question is, did someone experience something similar or is there any way to fix that without refusing to use bash.

ps: one of the command, which never works with bash, is dumpsys. it dies with unknown errors.


问:
Any applications using map view is crash on just bought MotoE
I've just bought a new Moto E gen2 with Andriod 5.0.2 and every application I start immediately crashes when I try opening any map-related view.

I've updated Google Maps, no effect.


问:
Protocol fault (no status) or Device not found error when sideloading
I'm using the Moto G 1st gen, mfastboot and Cyanogenmod. I've turned off MTP, enabled usb debugging and have set the android device to use the motorola adb interface in device manager.

If i kill the adb.exe in task manager, i eliminate the protocol error but get "not found" instead.

I'm currently installing the android sdk in order to apply this. Please say if you know a better way.


问:
Shell with su cannot remount /sytstem. adb can.
I am trying to mount the /system file partition in Android as rw. I have ro.insecure=0 in my default.prop. I have su installed and working correctly.
I can remount the file system using 'adb remount'
However, when I am in a shell prompt, I get a 'permission denied' error whenever I try to remount the partition.
Why would adb remount work but remounting as root user in a shell not work?

I am using

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

I have also tried

```<code>mount -o remount,rw -t ext4 /system
</code>```

but to no avail.

My default.prop has the following:

```<code>ro.secure=0
ro.debuggable=1
persist.sys.usb.config=adb
ro.adb.secure=0
</code>```


问:
Radio problem with Nexus 4
It seems I have always had some sort of radio connection problem with this phone, however since the most recent updates it's gotten really bad. My blue tooth headset (sometimes) constantly connects, a few seconds to a few minutes later disconnects, followed by a reconnect soon after. Sometimes I have to manual connect under the Bluetooth settings as it sometimes doesn't connect when the headset is turned on. Also sometimes at the same time I am having the Bluetooth problems, and other times when I am not having Bluetooth connection issues, I have issues with the WiFi connection. It just drops the connection, in my home in a very good signal area, both on the 2.4 GHz and 5 GHz. I can manually connect, it will connect sometimes others it won't, even when it does it disconnects a few seconds to minutes later.

Sometimes a reboot fixes it, others it does not. About a week ago while I was having these problems the phone just rebooted on it's own and when it started back up I got the "Android is starting, Optimizing app x of n" as if it had just installed an update, it did this a second time today but after I restarted the phone.

While I only have one Bluetooth headset Jawbone Era it works fine on another phone and on a PC. I have the WiFi problems on more than one Router.

Nexus 4, 5.1.1, build LMY48I

Any idea where to start?

Update

Still doing this, even after another Update now on build LMY48M

It's only done it a few times over the last week or so, but this morning my headset has disconnected and reconnected 40 or 50 times.

Possible related my phone randomly forgets all the stored networks and I have to reenter WiFi passwords.

Title: Radio problem with Nexus 4


问:
Using external USB camera with Android-based settop box
I have found many offers for selling settop box-like computers based on Android 4.4. One of them claims to have Skype installed on-board and allows to have Internet calls through TV.

For full video conference, a camera is required and since settop box doesn't have one (it is not a tablet or smartphone), we can only talk about external USV camera, connected through one of USB ports to settop box (notice, that we talk about pure USB port, not microUSB with OTG).

While browsing site, I found this answer, that points to an application named USB Camera Trial (Google Play and producer website). But, there are only examples for connecting external camera to full featured Android-based smartphone or tablet.

Will this work with settop box as well? Is Android on board settop box limited in any way or is it as natural as on smartphone or tablet and supports everything as on real mobile device?


问:
I have more apps than my max storage

As you can see in the screen shot my device recognises I have ~.5 gig of storage left, but I have an impossible amount of apps. When I moved a 230 MB app from SD to phone the apps storage when from 5.18 GB to 5.15 GB. I was confused so am wondering if any of you Android Enthusiasts know what is going on, and how to solve this issue (assuming this is an issue)

Edit: Diskinfo

This is after I installed disk info so the numbers will be diffrent than my original screenshot

```<code>--------------------------
 Internal Storage (MMC)
--------------------------
 * System [mmcblk0p30] (/system) [ext4]
   Used: 1.2 GB, Free: 329 MB, Total space: 1.5 GB
 * Cache [mmcblk0p31] (/cache) [ext4]
   Used: 9.6 MB, Free: 290 MB, Total space: 300 MB
 * Data (userdata) [mmcblk0p32] (/data) [ext4]
   Used: 4.6 GB, Free: 555 MB, Total space: 5.1 GB
--------------------------
 SD Card
--------------------------
 * External SD [mmcblk1p1] (/mnt/media_rw/external_SD, /mnt/secure/asec, /storage/external_SD) [vfat]
   Used: 10.9 GB, Free: 18.4 GB, Total space: 29.3 GB
</code>```

Edit: disk usage

Title: I have more apps than my max storage


问:
Returned One M8 to stock but can't install OTAs
My UK EE One M8 was unlocked, rooted and running a custom ROM.  The CID is ORANG001.

I wanted to return it to stock so installed stock recovery and a stock ORANG001 nandroid, relocked the bootloader and returned to S-ON.

It all looks OK but when I start receivng the OTAs, I get this error.

We have determined that your phone may be running a modified version of it's system software.

What have I missed?


问:
Google play does not recognize wifi on note tablet
I have 2012 note tablet. After some software update google play stopped working. It cannot recognize any wifi. (Home or hotspot). Tried resetting to factory settings. No luck. All existing apps work well. Any ideas</p>


问:
Is it possible to install android wear apps on android smartphone?
I'm an Android developer and recently I've started to develop apps to Android Wear. The problem is that I don't have an Android watch and the emulator is too slow.

Does someone knows if there is a way to install Android Wear apps on an android smartphone or install the android wear os on android smartphone


问:
What is "Assistant 1.0" app and how do I get rid of it?
I have MetroPCS and a ZTE ZMAX Z970 phone with Android 4.4.4

This app appeared, I don't know exactly when, and it's got some worrisome permissions and I want it off my phone, but it has no uninstall option and there's nothing on Google Web Search about it.

It looks goofy enough to be malware.

(Click image to enlarge)


问:
Distinguish samename apps installed?
I sometimes installed apps with the same name. Checking their info doesn't help me distinguish between them,because i think the only way is to find out the authors, and app info doesn't provide that. How can we distinguish samename apps installed? Can we fi d out their authors? Thanks!</p>

Title: Distinguish samename apps installed?


问:
How to remove Samsung native email app from Galaxy S2?

Possible Duplicates:

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

  How can you uninstall an app that you didn't install on your Droid?

  How can I uninstall built-in apps?

Is there a way to uninstall or wipe the samsung email app/client from Galaxy S2?
I only use gmail app. It's annoying to have the email icon always popping aside the gmail icon in every contacts of my phone..when I only use the gmail.

I just can't find a way to take it of my phone:/


问:
Get rid of TouchWiz
I recently bought Samsung XCover 3 and I like HW part of the phone, but TouchWiz is hell. Is there any way I can get rid of it completely?

I installed different launcher, which helped a lot, but many features works differently from clean Android - settings, many annoying pop-ups, speed issues ...

Title: Get rid of TouchWiz


问:
ZTE Score only booting to recovery
I have a ZTE N788 MTS352 CDMA Mobile unlocked to use any CDMA in India. Rooted it perfectly. Deleted unwanted APP, by mistake deleted one sys app "wall paper change"- after that mob. not working. when press combination volume up and power switch, following appears:

```<code>ANDROID SYSTEM RECOVERY <3E>
android system recovery utility
</code>```

reboot system now

apply update from sdcard

wipe data/factory reset

wipe cache partition

If from combination Vol. down and power button - FTM  appears.

Now nothing happens other than rebooting while clicking "reboot system now"

any body can help me. I am in a remote village of India.

Title: ZTE Score only booting to recovery


问:
Configure Android to allow third-part application to handle SMS (text) messages?
I have a Huawei P8 Lite running stock software (Android 5.0 and EMUI 3.1), and use a third-party application (MyPhoneExplorer, a.k.a. MPE) to handle SMS messages from my Windows computer.

Although I never had that issue with an older Android phone running Cyanogenmod, the new phone often prompts me with the following dialog to allow MPE to handle text messages:

Is there a way to tell Android to allow that application once and for all, and stop bothering me?

Thank you.


问:
Missing VPN Icon
My device is Asus Memopad 7 (ME176CX)

Since upgrading to Lollipop I no longer get a key icon on the bar when my VPN is connected.

I'm not sure if this is a Lollipop thing or a ZenUI thing?

Can I get the icon back? I like to see the visual confirmation that the VPN is active.

Title: Missing VPN Icon


问:
How to figure out what fonts are supported on android?
My mother tongue is called Manipuri and we have a script called Meetei/Meitei Mayek.

I am trying to create a input keyboard for the script. Up till Android 5, the OS doesn't seem to support the script. However, on Android M, when I visit a site with the script, it displays properly (at least on Chrome for Android). I thought perhaps the OS now supports the script.

I then tried to create a keyboard mapped to the unicode for the characters but it ended up displaying boxes.

How can I figure out whether the script is natively supported on the OS?

[Updated: Figured out the script is supported because I can see proper characters now. I had chosen the wrong emulator and that was the reason why I saw the boxes. However I think this must not be the optimal way to check support]


问:
ADB version of these terminal emulator instructions?
I have the "Insufficient storage" bug on my Moto G X1032. This answer fixes it with the terminal emulator app, which i can't install.  They recommend performing the following commands in adb if that's the case. These commands aren't working, so i assume ADB uses different equivalents. Hopefully you can translate:

"After browsing around, I found out that the cache folder (that I assume used by the market) is using small partition (around 20mb in my case). So to solve this we need to change it to bigger partition.

You gonna need Android Terminal Simulator or equivalent terminal app. This will also require your Android rooted."

```
su                                    // Root permission request will be shown: you need to approve it.
cd /
umount /cache
mount -o rw,remount -t rootfs rootfs  // To set the folder access to rw – read and write
rmdir /cache                          // Delete cache folder. I'm personally using root explorer to do point 5-6.
mkdir /sdcard/cache
ln -s /sdcard/cache /cache            // To link cache folder to /sdcard/cache – which should have bigger partition size
```

(Text next to // indicates a comment above. Text before // is the command to be used.)


问:
Why is 'no connection' error appearing while accessing Google Play store?
I have this common, annoying problem while trying to access Google Play Store from my phone. It just shows 'no connection', and won't load, even though the internet access is surely working. The suspected cause is a synchronization error of my Google account, likely due to incorrect time settings (it's reported while running WhatsApp for example). Here's what I've done so far:

Set the time automatically

Manually set the time, without using the network

Clearing cache of Google Play store application

Reinstalling Google Play store manually using .apk

Logging out and back in with my Google account

Rooting the phone and using ClockSync app to set the time

Doing a factory reset of my device

Making sure Freedom application is not installed

I'm slowly running out of ideas...if anyone has the smallest hint, I'll be really grateful.

OwnerDisplayName: Michał Szydłowski


问:
How to update Gapps in Cyanogenmod?
I am running cyanogenmod 12.1 with Gapps outdated version. So, I want to replace the actual version to the newest. I already downloaded de correct one. I would like to know the installation procedure using TWRP Recovery.</p>

Title: How to update Gapps in Cyanogenmod?