问:
Update APK from command line using ADB?
I have a phone running Cyanogenmod, which is an AOSP derivative. It lacks Google Play.

I installed Textra as the messaging app some time ago using adb install com.textra.apk. Textra was recently updated to version 2.28, so I need to update the app.

Using  adb install com.textra.apk resulted in a INSTALL_FAILED_ALREADY_EXISTS (this was expected). Using  adb install -reinstall com.textra.apk succeeded, but I still have the down-level version 2.26.

I don't want to uninstall Textra because I'm concerned it might wipe my existing database of text messages.

How do I use ADB to update an app that is already installed?

Title: Update APK from command line using ADB?


问:
Remove SU after unroot
I lost root access after an update (I'm totally android illiterate).
 I tried to re-root but Stump Root thinks that I'm already rooted because /system/xbin/su exists.

How can I remove /system/xbin/su so that I can run Stump Root and re-root?

ContentLicense: CC BY-SA 3.0

Title: Remove SU after unroot


问:
Unify Volume Control Via Rocker
Is there really no way to make the volume rocker on the side of my Samsung Galaxy Note 8.0 control ALL volumes at once, every time?
I really don't understand why the volume rocker doesn't just control the speakers like normal volume control knobs instead of having separate controls for different applications and the rocker only working on whatever app you're in at the time.
I want to be able to turn the volume of the device, and everything on my device, up and down, simultaneously, with the volume rocker.
Can anyone help?
Running 4.4.2 "Toothache"</p>

Title: Unify Volume Control Via Rocker


问:
Best custom rom for i9100?
I want to upgrade my s2 to lollipop but before that I want to backup my stock rom so that if in future I can reinstall it. Even tell me about best method of rooting I9100 and from where I can download lollipop for i9100. Currently I am running jellybean 4.1.2 version on my s2.
You can also suggest me any other good ROM.</p>

Title: Best custom rom for i9100?


问:
SMS sent automatically with message "HouslistacZ GMAIL" to unknown number
My phone has been sending the following message automatically about once a week since I bought it 1 year ago. As far as I see, there is no scheduled time for sending this message and the message context always has been the same. Also, it seems that the recipient is invalid, since I got "(no recipient)" every time it's sent.

Is it a virus? How do I remove it?


问:
How to configure build.prop file to disable 3G internet?
I am using Android mobile with JellyBean 4.2.2. When on 3G, the device is heating – so I need to turn off 3G data. While that could be done by going to Settings and set mobile networks to "2G only" ("GSM only" on some devices), this does not apply here: we are providing mobile phones with our application. and user's should not switch on 3G. So we need to do that by other means, switching it off globally via the build.prop.

Below is the build.prop file contents, is there any settings to disable 3G internet?

```<code>#begin build properties
# autogenerated by buildinfo.sh
ro.build.id=JDQ39
ro.build.display.id=SM112_OTD_W_CORAL_V0.0.3_S0516
ro.build.version.incremental=eng.pengyinhua.1402318234
ro.custom.build.version=SM112_OTD_W_CORAL_V0.0.3_S0516
ro.internal.version=
ro.build.version.sdk=17
ro.build.version.codename=REL
ro.build.version.release=4.2.2
ro.build.date=2014年 06月 09日 星期一 20:52:21 CST
ro.build.date.utc=1402318341
ro.build.type=user
ro.build.user=pengyinhua
ro.build.host=buildsrv5-desktop
ro.build.tags=test-keys
ro.product.model=ISN707 CORAL
ro.product.brand=ISUN
ro.product.name=
ro.product.device=ISUN
ro.product.board=
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=ISUN
ro.product.locale.language=en
ro.product.locale.region=GB
ro.wifi.channels=
ro.board.platform=
# ro.build.product is obsolete; use ro.product.device
ro.build.product=ISUN
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=sm112_otd_w_ba_r-user 4.2.2 JDQ39 eng.pengyinhua.1402318234 test-keys
ro.build.fingerprint=ISUN/sm112_otd_w_ba_r/sm112_otd_w_ba_r:4.2.2/JDQ39/1402318234:user/test-keys
ro.build.flavor=
ro.build.characteristics=default
# end build properties

# begin mediatek build properties
ro.mediatek.version.release=ALPS.JB3.MP.V1
ro.mediatek.platform=MT6572
ro.mediatek.chip_ver=S01
ro.mediatek.version.branch=ALPS.JB3.MP
ro.mediatek.version.sdk=1
# end mediatek build properties
#
# system.prop for generic sdk
#

rild.libpath=/system/lib/mtk-ril.so
rild.libargs=-d /dev/ttyC0

# MTK, Infinity, 20090720 {
wifi.interface=wlan0
# MTK, Infinity, 20090720 }

# MTK, mtk03034, 20101210 {
ro.mediatek.wlan.wsc=1
# MTK, mtk03034 20101210}
# MTK, mtk03034, 20110318 {
ro.mediatek.wlan.p2p=1
# MTK, mtk03034 20110318}

# MTK, mtk03034, 20101213 {
mediatek.wlan.ctia=0
# MTK, mtk03034 20101213}

#
wifi.tethering.interface=ap0
#

ro.opengles.version=131072

wifi.direct.interface=p2p0
dalvik.vm.heapgrowthlimit=96m
dalvik.vm.heapsize=128m

# USB MTP WHQL
ro.sys.usb.mtp.whql.enable=0

# Power off opt in IPO
sys.ipo.pwrdncap=2

ro.sys.usb.storage.type=mtp,mass_storage

# USB BICR function
ro.sys.usb.bicr=yes

# USB Charge only function
ro.sys.usb.charging.only=yes

# audio
ro.camera.sound.forced=0
ro.audio.silent=0

ro.zygote.preload.enable=0

# temporary enables NAV bar (soft keys)
# qemu.hw.mainkeys=0

ro.kernel.zio=38,108,105,16
ro.operator.optr=CUST

persist.sys.timezone=Asia/Calcutta

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.setupwizard.mode=OPTIONAL
ro.com.google.gmsversion=4.0_r7
persist.gemini.sim_num=2
ro.gemini.smart_sim_switch=false
ril.specific.sm_cause=0
bgw.current3gband=0
ril.external.md=0
ro.sf.hwrotation=0
ril.current.share_modem=2
curlockscreen=1
ro.mediatek.gemini_support=true
persist.radio.fd.counter=15
persist.radio.fd.off.counter=5
persist.radio.fd.r8.counter=15
persist.radio.fd.off.r8.counter=5
persist.mtk.wcn.combo.chipid=-1
drm.service.enabled=true
fmradio.driver.enable=1
ril.first.md=1
ril.flightmode.poweroffMD=1
ril.telephony.mode=1
dalvik.vm.mtk-stack-trace-file=/data/anr/mtk_traces.txt
mediatek.wlan.chip=mediatek.wlan.module.postfix=_
ril.radiooff.poweroffMD=0
ro.config.notification_sound=Proxima.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
ro.config.ringtone=Backroad.ogg
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
mot.proximity.delay=0
ro.lge.proximity.delay=25
ro.telephony.call_ring.delay=0
ring.delay=0
</code>```


问:
Samsung galaxy A5 USB Otg supported?
I have checked with few USB Otg checkers it said there are Apr are present in mobile. But i could not able to connect Pendrive. Many entry levels phones also have this feature. But this is recently launched metal body phone.  I really wondered why this feature is not present. Any way to enable this? </p>

Title: Samsung galaxy A5 USB Otg supported?


问:
tmo nexus 6 update error 5.0.1 to 5.1
I have a tmobile nexus 6 and I received the update yesterday. After downloading and installing, during the install where the robot is on the screen, it says error. Phone reboots and I'm still on 5.0.1. I did this three times yesterday.

I am not rooted and I do not have my bootloader unlocked. I am stock all the way. I bricked too many phones in the past trying to pretend I knew what I was doing.

Does anyone have any suggestions on how to fix this without doing a factory reset first?

Title: tmo nexus 6 update error 5.0.1 to 5.1


问:
How to tell if a dual sim phone is dsds or dsfa?
I recently learnt that there are different types of dual sim; i.e. that having slots for 2 sims doesn't mean they're both fully active at the same time.

Looking through the documentation included with my phone & attempting a few searches I haven't been able to find the answer; before requesting my office provide me with a work sim I'd like to know that my phone can handle it.

Is there a way to tell if your phone is dsds or dsfa (i.e. without using a second sim to test)?


问:
Grant root access without using SuperSU like utility
I wonder if it is possible to let every application work with elevated privileges without a utility (such as SuperSU or SuperUser) to manage such requests... :/</p>


问:
Smart Lock does not work anymore
Suddenly Smart Lock on my Nexus 7 (flo) unrooted/5.0.2 and on my Samsung GT i9300 rooted/pa 5.0.2 alpha does not work anymore.

My solution: I uninstalled the Google-Play-Service Updates.

Title: Smart Lock does not work anymore


问:
How can I block texts on android 4.4.4 (Moto G)?
I'm always getting spam texts and I am sick of regularly losing a couple seconds of my life to these assholes when I hear the message sound and check my phone.

How can I block them?  I would prefer not to use an app that requires access to a bunch of my info.

I looked online and I found some instructions that simply don't work:
http://www.mobiany.com/how-to-block-sms-and-mms-messages-on-the-motorola-moto-g.html
http://www.wikihow.com/Block-Android-Text-Messages

And my carrier can't do this for me.

Is there a built-in way?

Or do I need to download an app?  If so, which one is good?


问:
Chromecast performance differs between devices
I have a Chromecast in my bedroom and a dual-band router in the living room. The connection is solid enough that it will connect, and on my Moto X using the 5GHz radio can play 1080p video without issue or delay from Plex, YouTube, Netflix, etc.

However, when I try to cast these very same services from my Galaxy Tab 2 which uses the 2.4GHz radio, I notice playback stuttering in Plex and degraded video in Netflix and YouTube.

My question is this: why does the performance of my Chromecast differ depending on the device which is sending it requests? I thought it functioned much like a Google TV or Player where it would simply "open" (or be sent) an app and data request? Or is the information that it's playing coming from my Android device?

I feel like there's a clarity issue on Google's side, as I've found no documentation on this particular subject, and don't have the patience to sift through the developer documentation.

Update: I connected my Moto X to the 2.4GHz band as well to see if @Eldarathis' idea was correct, but the video still loaded just fine. I'm convinced that the poor performance of my tablet is somehow affecting the performance of the Chromecast.


问:
How to encrypt data on Android on per-file basis before backup to a cloud storage
I would like to automate file encryption on my Android device before sending them to a cloud storage.

I don't want to have a container encryption (like Truecrypt or VeraCrypt) since it will require a lot of data to be transmitted on each update, lots of resources to check changed blocks, and I don't see this is a good way approach to automation for such a task. So it will be better to have encrypted version of each file.

Moreover, I would prefer public-key encryption (asymmetric), not based on password strength. And most important - I would like to be able to work with files on different platforms (not only on Android).

I found that Encdroid is quite close to my needs (except that it is not asymmetric encryption): it is based on Encfs that works on different platforms and it is per-file encryption file system. The biggest drawback is that it requires FUSE module (filesystem in user space), which is not usually available on most Android distributions.

Another option will be to adapt GPG for that task, but it will require some scripting and probably other tasks that Android is not usually suits to. And I don't know if GPG works good on Android.

Do you know what are options to solve this task?


问:
My android's wifi is off and I am prompted for the passcode.
I entered the pattern wrongly too many times, and now it wants my google password. I now remember my pattern. How can I access it? (No online things please.) The original question's answers didn't work. Help! (please...?) </p>


问:
OS Features missing after upgrade to Android 5.1
I just updated my Nexus 5 from Android 5.0 LPX13D to 5.1 LMY47I. Some components of the OS now seem to be missing. When I scroll with two fingers from the top of the screen I only get the notifications pane, not the quick settings pane, and I don't seem to get notifications at all. My phone vibrates but nothing shows up in the notifications pane.

Since LPX13D was a developer preview, I didn't have an OTA update available, so I downloaded the factory image of LMY47I from Google's website and flashed it via adb and fastboot. I followed the instructions on the nexus image page, although I already had an unlocked bootloader, so I didn't have to do that step, and I also changed the last line of the flash-all script from

```<code>    fastboot -w update image-hammerhead-lmy47i.zip
</code>```

to

```<code>    fastboot update image-hammerhead-lmy47i.zip
</code>```

Which, according to a blog I found, tells fastboot not to perform a factory reset when it updates the OS from the image. However, I'm thinking this must caused LMY47I to not be installed correctly.

I've wiped the cache partition and re-flashed the OS from the image on google's website, which doesn't seem to have fixed the issue. Any ideas as to what I can do short of a full factory reset?


问:
Voice Notification can't be turned off?

I just got the Lg G3,
Android 4.4.2, and I can't seem to cancel the voice notification off,
it works just fine with my friend's phone, which is the same model and has the same OS version.

I go to settings> Accessibility or Settings>sound>Advanced Settings
and both show me that the message/call voice notifications are ON and locked.
I'd appreciate help asap.
Thanks in advance.

Title: Voice Notification can't be turned off?


问:
Is there a way to back up a device so it can be executed in a virtual Machine (without rooting)?
The question is thus: It is very plausible for an android user to want to back up his information... completely.

In this case, I'm wondering if it is possible to backup an android device in such a way that the OS which resided on it can be executed in a virtual machine.  (There may be limitations inherit to the virtual machine, those are not the focus of this question and would perhaps even be outside it's scope.)

However, there is a caveat: I wonder if it is possible to do this without rooting.  There are numerous other questions along this vein, but none seem to provide a system-wide satisfactory solution.

Answers requiring rooting would be acceptable for edification (plenty who may want to do this have likely rooted their device).

However, for the preferred aspect of the question... I wonder if this can be done without rooting.  A partial solution of this can be found here: with this question.  The accepted answer is intriguing.

However, one good reason too root an android device is to examine it for spyware at  a later time.  (For example: let's say I'm signed up for a security class, and my professor would be willing to help.  Later, and who wants to root a suspect system?) And at the very least, the solution to that question needs serious clarification.  Are the gaps in the backup mentioned by the original poster the only gap in functionality?

I realize that the last end of this question could be construed as mere clarification on the referenced one: if you look at the number of upvotes, I think you'll find this to be of very broad interest.


问:
Is it possible to batch remove apps in the Web Google Play
This question has been asked in the past (together with several duplicated pointing to it) but the answer is not relevant anymore (as of March 2015). The current version is 5.3.6 while the solutions are for 3.9.16 and not forward compatible.

I have lots of apps visible in the Web Google Play (under My Apps -> All Apps) and I would like to get rid of them (among others so that new devices do not try to install them).
They are not visible on my phone (neither in the 'Installed' nor in 'All' tab).

Is there a way to do that? (when clicking on the app on the web I just see an 'Installed' status (which is not correct, it is not installed anymore, anywhere) without the possibility of changing it).

The only idea I have is to force a synchronization between my device and the web Google play (via Titanium Backup for instance), clean up on the device and hope that the changes will be reflected back in Web Google Play.


问:
Xiaomi 16000mAH Power Bank Needs Charge-only USB Cable to Work with Z3
The Xiaomi 16000mAH power bank, using its original USB cable, didn't work on my Z3. Though, to my surprise, it worked on other smartphones (have tried samsung and lenovo). So I tried my friend's power bank USB cable albeit blindly (since the Xiaomi unit worked with other phones, there should be no problem with the cable right?), and strangely, it worked!

So what gives? Later on, I found out that the other cable is a "Charge-only" cable (cannot use for data transfer).

So why do you think exactly does this Xiaomi 16000mAH needs a charge-only USB cable in order to work with Z3 but not with other device? Also, do you think it safe to use it that way in the long run?

Lastly find it strange that I cannot seem to find (I mean Google) any case similar to mine (I don't think I'm the only Z3 user who purchased this power bank), but I also think it is genuine (from these: https://www.youtube.com/watch?v=obYhTgzEVP8; https://www.techmesto.com/identify-fake-xiaomi-power-bank/) I've already contacted the supplier about these, I think I can still send it back, but I really had it on a good deal (from Malaysia, below $25, including everything, if converted).

What do you think?


问:
Disable prompt when sending an SMS that "may cause malicious charges"
Since I got my new phone Lenovo S960, I have a problem when sending an SMS. If I send an SMS to any numbers, it prompts me this message:

Try to send to 0784xxxxxx a sms may cause malicious charges, are you sure to send the sms?

I tried with several messaging apps, but they still give me this prompt message, and it bothers me because everytime I have to tap OK, but sometimes I forget and the message is not sent.


问:
Cyanogenmod Profile Issues
Every time I reboot my phone new profiles are created and existing ones lose all settings. For example restart my phone 3 times I will have 3 profiles of each default one all with no settings. Anyone else have this problem and know how to fix it?</p>

Title: Cyanogenmod Profile Issues


问:
Manual Mouning from sda1?
Whenever I plugged in my mouse using the OTG cable the cursor appears.

But whenever my usb drive is plugged in the phone it didn't mount.

What I've tried:
Paragon - Nothing found
Stick Mount - Detects USB plugged in and prompt to mount but nothing happened
busybox mount /dev/sda1 /mnt/otg - Nothing in the mounted folder
Lots of Google Searches.

More Info:
Busybox 1.23.1-Stericson Installed
Rooted(of course)
External Powering don't help
OTG cable works on Galaxy S5(another phone)

Current phone info:
Labelled Model - Amazing X2
Kernel Version - 3.4.0 zte-kernel@Zdroid-SMT
Running on Kitkat 4.4.2

Title: Manual Mouning from sda1?


问:
NFC credit card
I'm wondering, if I can use my NFC phone as a credit card... how can I solve it? As I think, Google Wallet has this feature, but I'm not from US, I can't install it from Play.

Do someone know some other way, how to do this?

Releated, but not the same question: Do the new NFC options in 4.4 Kitkat allow one to have a combined digital wallet?

Title: NFC credit card


问:
Using Android device manager to get the SIM details of located device
Thanks to this question on SU, I was able to locate my mobile which was stolen a month back, but after using ADM (Android Device Manager) service, it notifies the tracked device that "Your location has been shared", but now I am getting this message "Your device's location access is turned off".

I suspect that the thief turned off this feature after I successfully located the device with accuracy of 20 meters, in fact during the last instances I could clearly see the stolen device moving along a definite trajectory as I suspect the thief would have panicked on seeing the ADM tracked messages notifications on the stolen phone. The tracked location is also very close location and very familiar to me which means I can probably get back my device.

Since the tracked device shares the location info, does it also share the other details like which SIM card mobile number the thief has installed? Can we get this info from Google?


问:
Can I suggest autocorrect change "u" to "I"?
My Hangouts typing often sees me missing i for u and moving on with a new word. If I correctly hit i autocorrect always capitalizes it to "I" and my sentence reads correctly. If I hit u however autocorrect does nothing. "u" is a valid letter and becomes a word once I lift my finger to start the next word. It is not, however, a valid word (and it's not in my dictionary nor contacts). Has anyone been annoyed by this AND found a way to stop looking a little crazy?

EG "No I was in the coffee shop" reads "No u was in the coffee shop" and the reader gets confused as to why I am asserting that they were in the coffee shop when they asked if I ran in the park yet today... even though I never use "u" to mean "you" it's still very confusing.


问:
Always use desktop mode for specific websites on Chrome
When I tap one of my favourite site, Chrome suggests me the link to mobile version, but I do not want it. I want to disable it only for my favourites.

I want to set the desktop mode only for some selected website, not for all

I use Chrome with Lollipop on Nexus 4. How can I disable this feature?


问:
How to turn off Viber 5.3 vibration?
I upgraded Viber to 5.3 version last night. after that , I have vibrate on my phone when I receive new message on Viber.

There is "Vibrate when ringing" in notification setting that it doesn't select

before upgrading I didn't have this problem.

My phone is  Sony Xperia Z2 and Android 4.4.4

How can i turn off vibrate on Viber messages notification?

UPDATE:

Viber support :

Hello Mohammad,
Thank you for contacting Viber support.
We received numerous complaints about this problem and are currently investigating it.
We will contact you back if we need more information.
Thank you.

UPDATE 2
this problem solved in the new version

Title: How to turn off Viber 5.3 vibration?


问:
How can an app decide whether the device is trusted or not?
I downloaded the trustable app from the play store which identifies whether the phone is trusted or not.

I run the application and it gave me a score of 4.3 with a suspicious.

Is this a genuine issue or just an other spam application. If it's true then what do I need to make it a trusted device.


问:
What is net interface 'vip0'?
When I list network devices on my Android phone, I see vip0 in the list and this is bugging me.

I can't find any information relating to this mystery device.

Can anyone possibly tell me what this device is used for?

Title: What is net interface 'vip0'?


问:
How can I watch for uninstalled app updates?
What is the best, non-manual, way of checking to see if an app that I do not have installed has an update?

For example, I do not have Google Camera installed, but I may want to install it when a new feature I'm looking for has been added to it.

Is there a site place such as Google play or Playboard that I can get an rss feed, email or another way of notification for certain apps?

EDIT: I am now aware of the defunct app "Changelog Droid" which is no longer maintained since January 2014. "The app is currently not maintained. There is an (unlikely to be fixed) issue with paid apps. Please don't contact me in this regard." So a solution beyond that would be greatly appreciated.


问:
Go to silent/vibration mode while listening to music
How can I listen to music and go to silent/vibration mode without having to stop the music? On older versions of Android you just pushed and held the power button and you got a range of alternatives to choose from, but now in Lollipop you only get power off restart etc. No volume options directly. Is there a fix for this?</p>


问:
Media Partition formating error
I have a ONDA Vi30D, ICS 4.03.  While wiping the media partition, i get this error, "mkfs.vfat failed on /dev/block/avnftl* (1)".  Any help please.  </p>

Title: Media Partition formating error


问:
How to configure maximum internet speed?
I would like to set a maximum value for upload and download speeds. I want to do this so that the monthly consumption of bandwidth per month would be reduced. This would help reduce the costs associated with internet usage. Is it possible to configure these parameters on Android devices?</p>


问:
An app named 'UTC' reappears after every reboot even if it is uninstalled
After every restart an app named UTC reappears even after uninstalling. I also keep getting notifications that the UTC app stopped working.

Can anyone suggest a solution? Here is a screenshot of the app's information:


问:
OS X Yosemite - Nexus 5 - ADB Device Offline
I've been trying to initiate ADB commands on my Nexus 5 using my MacBook Air. However, when I type adb devices into Terminal, my Nexus 5 is listed as offline.

I've tried disabling/enabling USB Debugging on my Nexus 5, rebooting both my computer as well as my phone, and reinstalling Android SDK - the problem remains. Any suggestions? Thanks.


问:
Installing samsung galaxy s3 neo stock rom on ssamsung galaxy s3
can I install samsung galaxy s3 neo (GT-I9300I) ROM on Samsung galaxy s3 (GT-I9300)....
If yes then please tell me how?</p>


问:
4.0 ICS: Access safe mode without volume buttons
My dad has a GEM7008 tablet running 4.0 Ice Cream Sandwich and has managed to acquire the Cheshire Police virus. Bear in mind that he's in his 60s and before getting this tablet, he'd never used a PC/Laptop/tablet/smartphone before. And I'm helping him over the phone.

The link above has instructions for removing this virus from tablets/phones and involves booting the phone into safe mode by turning the tablet off, then turning it on, and holding the volume buttons while it's turning on. The problem is, the tablet doesn't have any volume buttons. The route into safe mode for 4.1 doesn't work on his tablet, as expected.

How can I get into safe mode?


问:
Nexus 5 Android 5.1 Problems with mobile data
2 days ago I updated my Nexus 5 from Android 5.0.1 to Android 5.1. After the update was finished, everything worked as expected, but mobile data didn't work. I have tried turning on and off airplane mode, restarting the phone in safe mode, extracting and inserting the SIM...

What can I do?


问:
Is there any kernel requirement for installing Android Lollipop?
Is there a special requirement for a newer kernel in Android Lollipop?
Can I use it with 3.4 kernel?</p>


问:
Android x86 (Lollipop 5.0.2) stuck on logo during boot
I downloaded Android Lollipop x86 for my Toshiba Satellite L505D-S5965 and installation went perfectly. I pressed reboot when it was finished and the GRUB menu was there and I started Android. Everything worked perfectly until I got to the logo. I pressed Ctrl+Alt+F1 to see if there was anything in the terminal but I found nothing.

SIDENOTE: I got my ISO from this link since the Google Drive link doesn't work on my PC. It may or may not be broken. I tried it in VMware Workstation it did the same thing.


问:
Reboot Android 5.x with no user apps (Facebook etc.) opened
I have a Google Nexus 7 tablet of the first generation. I just use it occasionally and turn it off, when unused.

With Android 4.x I always got a cleanly booted system, without any user app opened (like Facebook, Stack Exchange App, News Apps etc.).
It increases booting time immense and bothers me a lot.

Is there any way to get the old starting behavior of Android 4.x back?

On a desktop PC I'd say I'd like to have a Shut down, but my tablet behaves like sleep since Android 5.0, even when turning it off.


问:
Cannot connect to WiFi • MAC address unavailable every time after restart
Since some days it doesn't load my MAC - so I cannot connect to WiFi.

If I remove everything in /data/misc/wifi folder and restart again it works again..

Of course I've to save WiFi networks.

I'm using PAC ROM on my S3 (with root).

UPDATE

now if I restore / copy my backup files and turn WiFi on it got overwritten by default / empty files

is there a better or quicker way to do that?

UPDATE (150708)

found that blog: MAC address unavailable

I think that my kernel/modem/... is defect.

Is there a way to fix it?


问:
How to use the camera on my tablet android 13mP as a webcam for my computer?
I tried DroidCam and USB WebCam On Tablet PIPO T9 but they offer poor quality. Can anybody suggest me way to increase the quality through above mentioned apps or any other way that I can try.</p>


问:
How to remove images from dictionary
How can I stop Google dictionary offering me pictures when I type words?

If I type "happy"... I want the word not the image (☺).

It's so annoying. Thanks.

Title: How to remove images from dictionary


问:
How to completely remove Clean Master?
I am having some troubles with my android phone. It's a Nexus 5 running CyanogenMod 11.

I once installed Clean Master from the Google Play Store and decided (non long after) to uninstall it.

The problem I have is that CleanMaster seems to be still installed as I can sometimes see some popups claiming that "CM Game Booster" could free some RAM/space whatever or even that my android phone is too hot (which is wrong).

I used the app '/system/app mover' from F-DROID to see if something was installed but I couldn't find anything (from user and system apps) related to Clean Master.

The problem is I gave CleanMaster root access (for '15 minutes') when I installed it.

How can I uninstall CleanMaster ?

Thanks

UPDATE

The strangest thing is that CleanMaster was installed 3 months ago, uninstalled 1 week later and I only noticed those popups last week. As the popups doesn't disappear untill I quit it (or press clean.. which I don't do) I'm quite sure the problem was not here before last week and nothing was installed last week or the week before..

Title: How to completely remove Clean Master?


问:
Why is the battery usage graph so useless?
Is it just my phone (Nexus 5, 5.1) or did the battery usage graph become useless in Lollipop?

I've attached a graph from today that, at first (and second) glance, makes no sense at all. This is after about an hour of sitting idle with the screen off.

If someone could please explain what's going on I'd really appreciate it.


问:
Motochopper root failure message
I want to use Motochopper to root my Samsung Galaxy Fame, but I found this failure message at the end. Does anyone know how to fix this?

```<code>[*]
[*] Motochopper: Android root exploit (Linux/OS X version)
[*] v1.1
[*] by Dan Rosenberg (@djrbliss)
[*]
[*] Tested on the Motorola Razr HD, Razr M, Razr Maxx HD, and Atrix HD.
[*] Supports lots of other devices as well. ;-)
[*]
[*] Before continuing, ensure that USB debugging is enabled and that
[*] your phone is connected via USB.
[*]
[*] WARNING: This will likely void the warranty on your device. I am
[*] not responsible for any damage to your phone as a result using this
[*] tool.
[*]
[*] Press enter to root your phone...

[*]
[*] Waiting for device...
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
[*] Device found.
[*] Pushing exploit...
5268 KB/s (1283460 bytes in 0.237s)
[*] Pushing root tools...
5932 KB/s (366952 bytes in 0.060s)
5410 KB/s (1867568 bytes in 0.337s)
4336 KB/s (1578585 bytes in 0.355s)
    pkg: /data/local/tmp/Superuser.apk
Success
[*] Rooting phone...
[+] This may take a few minutes.
[-] Failure.
[*] Cleaning up...
[*] Exploit complete. Press enter to reboot and exit.
</code>```

Details:

Computer: OSX

Device: Samsung Galaxy Fame GT-S681OP

Android Version: 4.1.2

The problem: I get the failure message just before cleaning up and this is the run.sh file:

```<code>echo "[*]"
echo "[*] Motochopper: Android root exploit (Linux/OS X version)"
echo "[*] v1.1"
echo "[*] by Dan Rosenberg (@djrbliss)"
echo "[*]"
echo "[*] Tested on the Motorola Razr HD, Razr M, Razr Maxx HD, and Atrix HD."
echo "[*] Supports lots of other devices as well. ;-)"
echo "[*]"
echo "[*] Before continuing, ensure that USB debugging is enabled and that"
echo "[*] your phone is connected via USB."
echo "[*]"
echo "[*] WARNING: This will likely void the warranty on your device. I am"
echo "[*] not responsible for any damage to your phone as a result using this"
echo "[*] tool."
echo "[*]"
echo "[*] Press enter to root your phone..."

read -n 1

echo "[*]"

platform=`uname`
if [ $(uname -p) = 'powerpc' ]; then
        echo "[-] PowerPC is not supported."
        exit 1
fi

if [ "$platform" = 'Darwin' ]; then
        adb="./adb.osx"
        version="OS X"
else
        adb="./adb.linux"
        version="Linux"
fi
chmod +x $adb

$adb kill-server

echo "[*] Waiting for device..."
$adb wait-for-device

echo "[*] Device found."

echo "[*] Pushing exploit..."
$adb push pwn /data/local/tmp/
$adb shell chmod 755 /data/local/tmp/pwn

echo "[*] Pushing root tools..."
$adb push su /data/local/tmp/
$adb push busybox /data/local/tmp/
$adb install Superuser.apk

echo "[*] Rooting phone..."
$adb shell /data/local/tmp/pwn

echo "[*] Cleaning up..."
$adb shell rm /data/local/tmp/pwn
$adb shell rm /data/local/tmp/su
$adb shell rm /data/local/tmp/busybox

echo "[*] Exploit complete. Press enter to reboot and exit."
read -n 1
$adb reboot
$adb kill-server

Here is the problem:

echo "[*] Rooting phone..."
$adb shell /data/local/tmp/pwn

echo "[*] Cleaning up..."
$adb shell rm /data/local/tmp/pwn
$adb shell rm /data/local/tmp/su
$adb shell rm /data/local/tmp/busy
</code>```

so $adb shell /data/local/tmp/pwn is causing problems, but how to fix? Anyone knows?

OwnerDisplayName: BenjaminStrike

Title: Motochopper root failure message


问:
Reverse Tethering not working in Android phone vis usb
I went through this tutorial http://blog.mathieu.carbou.me/post/60454997009/reverse-usb-tethering-with-android-2-2 to reverse tether my android phone to use PC internet via USB.

Using following commands I am successfully able to create bridge br0.

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

br0 has ip address : 172.16.138.102

My android phone is showing rndis0. I used following command using adb shell as root.

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

rndis0 was assigned ip : 172.16.138.109/24

Then I added default gateway for rndis0 interface.

```<code>route add default gw 172.16.138.102 dev rndis0
</code>```

Still internet was not working on android. I tried several other tutorials but same info was mentioned everywhere. Am I missing something or I need to do something more for running internet?


问:
Odin Write Operation Failing on GT-N7000
My phone appears to be in a bootloop as it is stuck on the Samsung Galaxy Note GT-N7000 Screen. I cannot access recovery mode, I can only access Downloading Mode. It started when I used Rom Manager to flash CWM to my device and do a backup. I have tried flashing a stock ROM to my device but ODIN (v3.9) gives me the following error:

```<code><ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> N7000XXLT9_N7000XXLT3_N7000ORALT3_HOME.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
</code>```

And shows a FAIL at the top in red.
Does anyone have any suggestions? Any help would be much appreciated.

Is trying a PIT file a good idea in this case? Where would I get one?

Thank you.


问:
Installing CM10.2 - Stuck on Download Mode
I have a Galaxy SIII (GT-i9300) and I'm following the instructions for installing CyanogenMod on it here.

However, when following step 4 of the first part:

Boot the Galaxy S III (International) into download mode. Hold Home, Volume Down & Power. Accept the disclaimer on the device. Then, insert the USB cable into the device

I get stuck in the (in)famous Downloading... Do not turn off target screen. I don't even know if this is expected and if I should wait it to download something (download what? I have no idea). If this is not expected, what should I do to go on with the process?

I have checked other questions, but I couldn't tell if my case is the same, since other people state that they got into download mode by accident


问:
How can I keep my mobile data connection up when establishing a non-internet capable WiFi connection?
I'm using a Raspberry Pi to stream music wirelessly inside my car. The Pi has a wireless network without real a exit to the outside world. I want to connect to that 'internet-less' network and still be able to stream music with my mobile LTE connection. The PI works perfectly with iPhones. I set a static IP on the iPhone without specifying DNS and works as intended. I can't achieve that with my Nexus 5 (Android 5.1). As soon as I connect to the Pi network, the LTE network is gone so I cant stream Pandora, GMusic, nothing.

How can I achieve this in Android 5.1? Is it possible?


问:
How can I trigger a WiFi passwords restore?
I know that when you first setup a new phone you can choose to restore your WiFi passwords and installed apps from your Google account. I've even tried that a few times and it sure works. However this time for some reasons it didn't restore anything. The checkbox for restoring them is checked, but nothing is restoring.

Is there a way to manually triggering this restore process? It would suck if I'd have to retype all the passwords one by one, by hand.


问:
Can't adjust volume on USB Headset
I've recently purchased a Male Micro-USB to Female USB adapter (OTG).

Now, I've connected my USB Headphones (w/ Microphone) but I can't adjust the volume.

When I try, It either mutes it completely, or plays at 100% volume.
Also, the Microphone doesn't work.

For some reason, the 'beats audio' doesn't work either.

I have a HTC Butterfly,

Android version: 4.3

HTC Sense version: 5.5

What could be the reason for not being able to adjust volume?

Title: Can't adjust volume on USB Headset


问:
"INSTALL_FAILED_INTERNAL_ERROR" when installing an app on BlueStacks
I need some help with installing an app that I want to use using the BlueStacks App Player. I've downloaded the APK and I have a problem when I was trying to install it. I tried deleting it and install back a new one but it didn't work.

The error message says:

Apk Installation failed: INSTALL_FAILED_INTERNAL_ERROR

Can anyone suggest me some ways to fix it?


问:
Micromax A110Q - SD Card space becomes 0 bytes in few hours
I have formatted my SD Card many many times and when I format it - I get the full space of 7.5 GB and after few hours of using the phone - getting images from whatsapp and other content - It becomes full and space comes to ZERO BYTES even though the images are just a few MBs.

What's the issue here?


问:
How can I be notified of updates for apps that I do not have installed?
What is the best way to be notified of an apps' update that is not installed on my phone? Is there a site place such as the Play store, Playboard, Aptoide or elsewhere that I can get an rss feed, email or another way of notification?

For example, I do not have Google Camera installed, but I may want to install it when a new feature I'm looking for has been added to it.

I am aware of the defunct app, "Changelog Droid" which is no longer maintained since January 2014. "The app is currently not maintained. There is an (unlikely to be fixed) issue with paid apps. Please don't contact me in this regard." So an alternative solution beyond that would be greatly appreciated.


问:
Screen mirroring with Chromecast on apps that disallow it
I currently have a Chromecast and a Sony Xperia Z3

The problem that I am having is using some apps with screen mirroring; 4od and Sky Go. If you are not from the UK then these are apps for watching television.

When I use the Chromecast app and try to mirror my screen whilst using these apps I get a message that these apps don't support screen mirroring.

I have done a bit of research and I have found that an app called #MirrorEnabler that I think would do the job, however it would require rooting my phone which I don't really want to do.

Does anyone know a work around for this? Maybe a different screen mirroring app that the 4od and Sky Go won't detect?


问:
Media isn't displayed in the gallery or sound player, but are in My Files
I just woke up this morning and my photos and music weren't displayed in their respective apps. I can find everything still there on my phone under My Files and can view / play them. When i take a new photo it shows up in my gallery, but other than that the gallery is completely empty.

Can anyone help me solve this? I have a Galaxy S4


问:
Increase the efficiency of charging
Is there a way of increasing the efficiency of charging an android device without switching the device off?

I am not talking about using different cables, chargers, hardware etc, I'm interested in methods of decreasing the amount of time it takes to charge using only software or applications.

For example, undervolting your device will mean it uses less power at specified CPU frequencies, so the device will use less power while charging, right?

Title: Increase the efficiency of charging


问:
Contact List doesn't show all contacts Galaxy S4 l9515
The problem bugging me is that when I go to the Contacts App, it show/display 55 contacts. According to the "Menu", it is set to show All Contacts.
But when I go to any App that share contacts (i.e. go to WhatsApp, open any chat and select Attach Contact) it shows such a big list of contacts that I estimate about 500 contacts easily. Some I have no idea how it got there, some others I think they're being listed because sometime in the last decade I sent them 1 single email from Gmail. I tried to go to http://www.google.com/contacts but there it only shows the 55 original contacts. Do I have to erase all emails I've ever sent to get rid of this giant list of contacts?</p>


问:
is there a way to set battery save automatically at night?
I would like to enable the battery saving mode at certain time and disable it at another time every day, is this possible?</p>


问:
should (or shouldn't) I clean the ram when I closed all applications?
This might be a bit of a general question but nevertheless:

Performance wise:
should I, when I kill all apps (or some of them) also clear memory?

I know that android keeps a stack of apps (Activities) to reuse and wipes them if memory if needed, but does it costs energy to keep those apps (which I currently don't need but might start up again) or do I clear the memory to have as much ram free as possible and is there a difference in battery load?

S.


问:
WiFi not starting : accidentally deleted wpa_supplicant file
My device is moto g xt1033 android 5.0.2 (rooted). During my experiments for enabling reverse tethering over USB, I accidentally replaced the original WPA_supplicant file from system/bin folder with the one downloaded from internet.

Now my WiFi , Wi-Fi hotspot won't start.


问:
Why does my Android 4.4.2 sudden have a battery drain (Wiko Bloom)?
I'm currently using a Wiko Bloom, with Android 4.4.2, using the latest manufacturer update.

A few weeks ago I was trying out the Llama app and after a while I noticed that out of nowhere my battery charge would drop very suddenly to (almost nothing). If I'd see it in time, before it hit 0, then i could recharge it, but often it just depleted completely. This happens in a matter of minutes.

I thought Llama was the culprit, so I did a factory reset, but the problem still persists.

Battery stats reports about 47% phone idle, 46% mobile standby and 7% Wi-Fi.

Battery graph 1 (notice the steep sudden drop of about 45%!), and then Battery graph 2 (again... a steep drop):

Screenshots: Graph 1 (left) and Graph 2 (right; click images for larger variants)

I installed GSam to try to get pinpoint on what is causing it, but since I'm not running root, I can't get a full report:

GSam screenshot (click for larger variant)

However, in my opinion, this doesn't seem very much out of the ordinary.

I wrote to Wiko and they want me to send in my phone to have it serviced. Before I do that (costs involved, not having my phone, might not be solved, etc.), I wanted to check if maybe there's a wizard here who can help me some more?

I don't have BT turned on, Wifi is on sporadically. Really the only apps I have installed and frequently use are GMail, Google Keep and Firefox.

If I need to go root to figure it out, that's fine; I'll just need help to do it (and to be able to restore it to a pristine state afterwards should it still not work).

Should I need to provide more information, don't hesitate to ask me.
In any case, thank you.

Edit (19/07/2015):
I have rooted my phone a few weeks ago and installed root version of GSam, together with Wakelock Detector. I believe these report more acurate data on what processes are running and such.
I have yet to pinpoint the exact source of the sudden drop in battery level.

Screenshots: Graph 3 (from GSam), GSam root, Wakelock Detector (right-click images for larger variants)

I noticed that even after plugging in the charger, the % of battery continues to drop for another while.

Screenshots: Battery rate of change (right-click image for larger variant)

I'm still getting a very good number of days out of my battery (mostly because i'm not at all an active user), so no complaints here. But i'm beginning to wonder if the battery perhaps is being misread? That my phone thinks it has more power during the first few days, and then suddenly has to catch up when the voltage dips below a certain point. (The battery is indicated for 3.7V, 2000mAh)

Also: GSam sometimes indi
cates an active period, but without any effect on the battery. I'm wondering what this is.

Screenshots: Active, but no drain (right-click image for larger variant)

I don't notice anything wrong with the radio strength.

Screenshots: Radio strength (right-click image for larger variant)


问:
Request desktop site on stock Android Chrome by default for certain websites
For certain websites on my Nexus 5 running stock Android 5.1, I would like to always display the desktop version instead of the mobile version.

My current workflow is as follows to navigate to a desktop version of a frequently-visited website:

Open Chrome bookmark from a Bookmark widget

Wait for Chrome to begin to load the mobile version of the website

Check the "Request desktop site" option in the Chrome menu

Wait for Chrome to load the desktop version of the website.

I'm aware of this XDA thread that shares how to configure Chrome to always request the desktop site. Is there a way for to set up a bookmark so only that bookmark loads the desktop site?


问:
External devices interfering with GPS
I recently bought a FM transmitter to broadcast my music to my car's speakers. However, I discovered that while the transmitter was plugged into my phone I couldn't get a GPS signal.

I imagine that the reason for this is that the phone uses headphone devices as an antenna when they are plugged in. This transmitter plugs into the headphone jack. Unfortunately though, this transmitter does not make a good antenna.

Question: Is there a way for me to force my Samsung Galaxy SII (Epic Touch 4g) not to use that as an antenna?

Title: External devices interfering with GPS


问:
Why is my new screen upside down and mirrored?
I broke and replaced the screen on my Nexus 5.

Once I booted the phone up, the new screen is upsidedown and mirrored, also touch doesn't work at all.

I can see how the touchpart is caused by a broken connector or something, but the mirroring?


问:
How to batch delete files in several folders on Nexus 9
On a Nexus 9, using bookshelf with fbreader, I have copied lots of folders from Calibre on a PC to Books folder. Each folder contains a metadata.opf file which the bookshelf for some reason considers and shows as a separate book, but when opened it shows nothing.

So I want to delete all these metadata.opf files, but going in succession to all these folders and deleting them one by one would take ages.

If I could get into the Books folder from the command prompt on the pc I could issue a single shell command to do what I want.

But I don't know how to do it. Windows Explorer shows portable device Nexus 9 connected, I can get inside from Windows Explorer, I can search for all metadata.opf files in Windows Explorer, and it gives me a long list of these files, but I cannot delete them all - I can delete them one by one but when I select them all and choose delete, a window pops up telling

```<code>An unexpected error is keeping you from deleting the file. If you continue to
receive this error, you can use the error code to search for help with this
problem.

Error 0x80004002: No such interface supported
</code>```

What can I do?


问:
WiFi stop working after few days
I have problem with WiFi on Android 4.4.2. (phone ZTE Geek 2)
After few days of working  WiFi stopped work and WiFi connetion has an error: “Saved, secured with WPA /WPA2”
Router reset, change configuration phone restart didnt work

I made hard reset of conifiguration of phone and it worked for few days (about 5 days) But it stopped work again. And now only that hard reset helps to make WiFi work again

Tested with 3 different routers.
Another phone work. This phone work only few days after reset.

Title: WiFi stop working after few days


问:
Lollipop : Mobile data toggle from lock screen
Mobile data can be switched on and off from lock screen in android 5.0 lollipop. I casually leave my phone on desk for short time while I am nearby, somebody (suppose a kid) can toggle mobile data which can cause problems. For example it can incur a lot of charges if background data is enabled in my settings and somebody switches on the data. Or if I am downloading something in background then it can get interrupted if someone switches off data. Any solutions, tricks, etc. to solve this. </p>


问:
Setting up a 2nd tablet to look like the 1st before resetting (and returning) the 1st?
I bought a Samsung Galaxy Tab 4 and browsed the net and installed some apps on it - fortunately not many as it was basically getting a "test drive" and I had a feeling it wasn't being kept. I was right, I will be returning it to the shop and I'll obviously do a factory reset before doing so. What I'd like to know is whether it's possible to restore/copy the data to a second device so that I've got my apps/browsing history/bookmarks etc etc on the second device rather than having to reinstall everything on the new Tab 4. The movies/music/pictures are all on an SD card which will hopefully help, it's the apps that I'm curious about, especially since some of the games keep track of how far you've progressed and I wouldn't want to start from scratch!

Looking forward to getting some ideas from you. Thanks in advance.


问:
Virgin Mobile HTC desire 510 root?
Has anyone found a solid way to root the VM HTC desire 510? I have search long and hard but haven't found anything substantial. I know the 510 is rootable, and I have found a few tutorials, but they aren't very clear ones. Has anyone written a really solid step by step tutorial for rooting this phone?</p>

Title: Virgin Mobile HTC desire 510 root?


问:
TWRP ignore Getprop
I have an obscure Moto X varient, so when flashing ROMs in TWRP I have to manually edit every one to remove the getprop line from the updater script. Is there some way I can change the built in name of my phone or get TWRP to ignore the getprop file every time?</p>

Title: TWRP ignore Getprop


问:
Android 5.0.1 doesn't handling additional media buttons
when I use android 4.4.4 (Galaxy Nexus) minus button plays next song. plus button plays previous song. But android 5.0 (Nexus 4) no actions for these buttons. if android no longer support these buttons. I wan't to implement myself.

How can I receive key event from these media buttons?

I've tested these methods. But no luck.

```<code>AudioManager.registerMediaButtonEventReceiver
MediaSession.setCallback
</code>```

and

```<code><intent-filter android:priority="2147483647">
     <action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>
</code>```

image http://cdn.shopclues.net/images/detailed/403/ForSAMSUNGGALAXYS3IIIS4I9300ForSAMSUNGGALAXYNoteN7000Note2N7100HANDSFREEHEADPHONES1_1365530097.jpg


问:
How to give more Java process memory (RAM) to games?
I have a developer background, but this is not a game development question.

I have several games that are struggling to be playable with 128MB of RAM allowed for them in Android. I have a Galaxy S4 (2GB RAM) and 600MB free memory just being there doing nothing while I'm playing those games. The games lag on dalvikvm﹕ GC_CONCURRENT events as I had LogCat open while playing, here's an example:

```<code>04-13 13:25:30.652      832-836/?
GC_CONCURRENT freed 8192K, 32% free 90350K/132732K, paused 9ms+23ms, total 364ms
WAIT_FOR_CONCURRENT_GC blocked 336ms
WAIT_FOR_CONCURRENT_GC blocked 282ms
WAIT_FOR_CONCURRENT_GC blocked 105ms
WAIT_FOR_CONCURRENT_GC blocked 103ms
</code>```

Is there any way to allow certains apps, or all of them to run havoc on free memory, for example allowing them to use at least 256MB? I'm pretty sure these games have android:largeHeap already in their manifest.

Killing other apps won't ever help, so please don't suggest to use a task manager unless it has a "set max memory" feature.


问:
Win 7 wifi hotspot connection not able to share internet
I have created an ad-hoc wifi hotspot connection using

```<code>> netsh wlan set hostednetwork mode=allow ssid=WinWlHS  key=MyPassword keyusage=persistent
</code>```

Then I have started hotspot using

```<code>netsh wlan start hostednetwork
</code>```

I have also shared the intenet connection with Microsoft virtual WIFI mini port & it's also showing that it can access Internet.

When I connect to this hotspot network on my android device it gets connected but there is no internet(All proxy settings have been taken care of). Anybody with some experience to this who can guide ?

Note: I am behind proxy, using windows 7 64 bit, Sophose 5.60 installed, Using static Ip.


问:
My Galaxy S3 has a white screen with grey lines
My Galaxy S3 has a white screen with grey lines and nothing is working. I don't know if the internal memory is overloaded or if the issue is in the hardware. Can it be fixed or not?


问:
ScreenMirroring in moto e
I have moto e (XT1022) 1st gen phone, it runs on android 4.4.4 .

I have a smart TV Sony KDL-40W600B.

I am wondering whether my moto supports Miracast - screen mirroring or not. because it has option of the cast screen. But when I start screen mirroring in TV and go to cast screen option it doesn't show anything, even there is no option of finding the device.

EDIT
See the image, there is not option of searching a new device.

Title: ScreenMirroring in moto e


问:
Yellow, pixelated icon appearing on Samsung Galaxy S3
It looks like 2 staggered coloured (colour is predominantly yellow) keyboards overlapping. The top one is offset to the left of the first one.


问:
How can I transfer MMS messages from an HTC One to a Galaxy S6?
I am trying to figure out how I can transfer all of my messages (SMS+MMS) from my old phone to my new phone. From what I can tell, most of the apps (SMS Restore+ and others) do not support MMS restore. I have Helium, and when I restore the "messaging storage", the MMS messages are not there. What else can I do? I really don't want to lose all of those messages!</p>


问:
Browser opens play store when tried to load certain link
I just found that when I tried to visit certain page in firefox(also in the built in browser), it opened play store's page for a certain app which is related to the website.
The website I tried to visit was "flipkart.com" an the play store page was showing it's app. When I enter the link and pressed the button, ff says that "Couldn't find an app to open this link" and loads play store. Why it is so?
Because of this, I can't visit that website</p>


问:
How to undelete an audio file from Asus fonepad 7 tablet?
A few days back I deleted one audio file accidentally. I created that file by recording using the application Asus sound recorder. That file had the extension of .3gpp or .wav.
I'm working on Android lolipop.
Also, I would prefer a solution that doesn't require rooting my android device.


问:
HTC Desire 816- how do I turn on my mobile data?
I have been relying on my WiFi due to not knowing how to connect to my mobile data. When i turn my mobile data on, the switch turns green indicating that it is on however, it says disconnected underneath and the mobile data doesn't work.
Please help, Thank you.</p>


问:
Sinhala fonts in Andriod 5.0 (lollipop)
I have upgraded my Samsung S5 to lollipop recently. Now I am unable to see any Sinhala fonts. Any fix for this ? </p>

<p>Thanks ! </p>

Title: Sinhala fonts in Andriod 5.0 (lollipop)


问:
Get notification audio through headset

Possible Duplicate:

  Block all sounds going out through speaker when headphone connected

I listen to music and audiobooks a lot on my HTC Incredible, and the phone rings through to my headphones, but the notification alert plays through the external speaker.

Is there any way to get it to play through just the headset like the phone ringer does?

Android version 2.2

Title: Get notification audio through headset


问:
Where is located flashlight activity on cm12
As you know, on cm12 does not exist Torch.apk. Flashlight run on toggle in quick settings. I am wondering, which one application contain flashlight activity? I was Googling, but can't find an answer.</p>


问:
can't install/update apps on my android phone
My Galaxy Ace 3 (GT-S7272) keeps restarting after updating the apps and removing the app after restarting. Here's what I did to solve the problem but no hope:

I tried clear factory reset and clearing the cache but it didn't work.

I tried to install the apks of the apps without google play but it didn't work.

I tried to clear the cache and remove the data of google play app but it didn't work.

What should I do now as the phone doesn't accept any new apps nor updating the current ones ?


问:
CM12 Nexus 4 (Mako) GAPPS failing to flash, error: Status 7
I'm using a rooted, unlocked Nexus 4 with TWRP. I succesfully flashed CM12 but whenever I try to flash GAPPS it fails with error code: Status 7. Which GAPPS.zip should I be using for a Lollipop Nexus 4 CM12?</p>


问:
Setting IncognitoModeAvailability policy for Google Chrome on an Android tablet?
Google Chrome supports an “IncognitoModeAvailability” policy that I want to set on my Android (Jelly Bean) tablet.

I tried to set up the policies as described here: http://www.chromium.org/administrators/linux-quick-start. However, the built-in Android File Manager doesn’t allow me to create the required directories; I assume this is because I don’t have enough permissions.

So, my questions are, in ascending order...

Is there a way to get the required permissions for the built-in File Manager?

Can I launch an Android command-line shell somehow with the required permissions?

Is there any way to set this policy via Chrome itself, perhaps with some special command(s) entered in the address bar (the Omnibox)?

Alternatively, is there any way to get Chrome’s “Incognito” mode to respect the Google SafeSearch settings that I have locked?

Thanks for your time.


问:
Tasker offline speech recognition
Anyone knows whether this is possible?

Allegedely this is possible from Android 4.2 onwards.
 (I have 4.4.2, Kazam Tornado 348, no mod)

I do find a "Offline Voice Recognition" setting in Settings > Language and Input > Google Voice Input, where I downloaded my language, which doesn't seem to help tough.

When saying "Ok google" while offline, the microphone screen shows, saying "Google is currently unavailable".

Title: Tasker offline speech recognition


问:
Install messaging tablet app on non-network phone
I've got a regular cell phone through Verizon. In addition, I also have a Galaxy Tab and a Galaxy S3, both of those using Wi-Fi only.

I use Verizon's messaging app on my regular phone as the default SMS app, and I have the tablet version on my Galaxy tab, which works fine - everything synchronizes, and I can send and receive SMS/MMS messages from the Tab over Wi-Fi.

I'm trying to do the same for the Galaxy S3, but it seems that the phone version of the app only works on a regular network phone - and since my S3 doesn't have a SIM, the app doesn't function.

Is it possible to install make my S3 install the tablet version of the app so this would work? Maybe some way to identify itself as a tablet instead of a phone? Or any other way that you know of to use Verizon Messages from a non-network phone over Wi-Fi?


问:
Nexus Player (Android TV): multi language keyboard
On my Nexus Player I have an option to choose multiple languages for whole system, but on keyboard I can't change language from English to anything else. Is there any way to have multi language keyboard?</p>


问:
silk full screen actual resolution on kindle hdx
OK, the silk browser goes 'full screen'. But there is a margin. Argh! Can I get rid of the margin, or get it into full full screen (2560 X 1600)? Or find out what the actual size is (2560-mw,1600-mw) ?

I am going to have to write my html to handle this. But maybe there is some setting on the Kindle Silk browser that tells the full screen mode to not have that margin.

Why do I not want the margin? Because I have an image exactly 2560 X 1600, and I want to view it full screen, pixel for pixel.


问:
RCA tablet want to watch on monitor
I have an inexpensive tablet (RCA), and I want to hook it up to a monitor with a VGA hookup, I got the adaptor, micro USB on one side and VGA on the other. Hooked it all up, and nothing....I can't figure out what is wrong...is my device just too cheap, and can't send a signal to the monitor? Please help!!!

Thank you,

Cherie

Title: RCA tablet want to watch on monitor


问:
Launcher3 isn't responding error on Android 4.4.2
I am constantly getting an error on my Xolo q1010i (Android 4.4.2) saying "Launcher3 isn't responding". It gives me two options: "Wait" and "Close".

It appears when I try to open an application, but not with any specific one; it happens randomly.

I have tried doing a factory reset, but in vain.

Is there any solution to this?


问:
Blocking unwanted wi-fi singnals
There are a lot of wi-fi connections around my phone. I want to use only one of them. Is there a way to block those unwanted connections so that they don't appear in existing connections in wi-fi settings?</p>

Title: Blocking unwanted wi-fi singnals


问:
Installed custom Android 5 ROM, but how to upgrade now or return to official one?
I bought Galaxy S5 from T-Mobile which had Android 4.4 (last year). Back in October I needed Android 5 to test a mobile application (I am a developer) and I installed official S5 Polish ROM which was the only one available in December last year.

Now, I don't need it any more as it does not work perfectly well (but had to stick to it till now).

How can I return my original ROM?


问:
Create static route for WiFi connection
My android 4.4.2 device is on a corporate network which requires a static route to access another subnet.  This static route is served by DHCP but I don't think Android is respecting it.

Is there a way to add a static route manually?  (For a wifi connection - not a VPn connection)?

As well is there a way to show the routing table in Android 4.4.2?

Title: Create static route for WiFi connection


问:
Cause of HTC MyTouch Slide Random Reboots
I just bought a brand new HTC MyTouch Slide phone, so new it doesn't have a SIM card yet, but it reboots every time I slide out the slider. Sometimes it is a little delayed, but it is always while I am using the sliding keyboard. Usually it will boot back up right away, but sometimes it takes some time and a few tries to finally boot. Anyway, this thing spends more time rebooting than working properly.

Does anyone know the cause of this? Or even better, how to fix it?


问:
Set screen when unlock device
I've purchased S6 and when unlock the there is a phone screen on by default instead of home screen. How to set the default screen to "home" after unlocking device ?

Related : Unlocking screen brings up Phone app on Lollipop

Update :
I used default lock screen and swiping to right to unlock caused issue

Title: Set screen when unlock device


问:
How can I temporarily disable all autostart services while still allowing me to run apps?
Because I'm thinking of installing LinuxOnAndroid on my Galaxy Nexus, an old phone with limited RAM (1GB), I need a way to temporarily kill all background services, so they won't use up memory or CPU time.

Everything I could find online only provided ways of disabling specific apps long-term.


问:
Extracting feeds and items deleted from RssDemon in 4.0.0 update
So, in RssDemon's 4.0.0 update they deleted all user feeds, saved items, etc. Many users are naturally very unhappy about this.

It seems possible that the old data is still on the phone, if one knows where to look. A guide to recovering the data and feeding it into a podcast/RSS app (maybe a new one) would be fantastic.


问:
Google Play services using up battery - Why and how to fix it?
Why would Android devices have Google Play services using up the second-most amount of battery usage over a 24 hour period (second only to screen power)?

On one device, I see Google Play services using 28% of battery usage.  No updates were performed on that device since the last reboot.

When selecting Settings > Battery > Google Play Services,
 under "Included Packages" it only lists Google Backup Transport, Google Bookmarks Sync, Google Play services, Google Account Manager, Google Contacts Sync, and Google Services Framework. There is almost no data on the device, so nothing is being backed up in the background.

What is causing this, and what can be done to prevent it?


问:
GT Trash made my S4 Zoom slower
GT Trash Is a free app available on play store. Ever since i installed it and tried deleting the recovery files (erase data for good) or over-writing them, off my sd card and phone storage my phone has become slower in processing. Everthing is just slower. Why? Need help!</p>

Title: GT Trash made my S4 Zoom slower


问:
Android tablet as 3G gateway - Limit tethering device 3G bandwidth
Scenario:

An Android tablet computer acts as 3G gateway for multiple devices connecting to it via WiFi; everything happens in a moving vehicle.

How can I limit the 3G/GPRS bandwidth of the devices connecting to the tablet, and secure a certain bandwidth for the tablet itself ?

Also is there a limit in the number of connecting devices ?

Thanks!


问:
Can I edit Play Books dictionary?
When reading on the Google Play Books app, there can be a lot of names or locations to remember. What would be perfect is a way of editing the dictionary to allow custom entries in which I can enter information about these things.

Although that is the ideal solution, I'm happy for similar things: other apps which give me blank or custom dictionaries that will work with google play books, for example.

I'm not massively familiar with Play Books yet, though I tried achieving this with the note function but it only added the note to that exact word (so later occurances of that word do not show the note).

This might not be possible at all, but any help would be great.

Title: Can I edit Play Books dictionary?


问:
Kids Mode has disappeared after S4 Lollipop upgrade
After upgrading the OS on my S4, Kids Mode suddenly disappeared today. Other S5 Galaxy users in my home can find Kids Mode in their Widgets but I cannot locate it anywhere. I upgraded 2 days ago and Kids Mode was accessed for the first time (since the update) today. The app requested an update, which I performed, then worked for about 1 minute before closing suddenly and disappearing completely. Does anyone know of Kids Mode being removed from the S4 or how to reinstall? </p>


问:
Using KnockOn with the LG G3 over top of widgets
I've just recently bought an LG G3 (D850) and I've been enjoying the KnockOn feature (where you can double tap to power the screen on/off) but I've noticed that the feature does not work over top of apps/widgets. To explain, when the screen is on (and every available spot is filled with an app or widget) the only spot I can double tap to turn it off is the very top notification bar. Now although this is only a slight inconvenience, it makes the screen much easier to turn on than off. Basically my question is:

Is there a setting to allow the "KnockOn" feature to work over top of apps/widgets? Allowing for me to double tap anywhere on a powered on screen to turn it off.

Thanks in advanced!


问:
How to fix soft brick Cloudpad 700tv
When I try to reboot it in recovery mode it always go in normal boot is it softbricked? anyone can help me please!</p>

Title: How to fix soft brick Cloudpad 700tv


问:
Disable google play store auto update
i want to disable google play store auto updates. I am not talking about auto update applications. I don't want to update my google play store version. Please help me.</p>

Title: Disable google play store auto update


问:
Applications crash on boot after wiping cache partition
I cleared my cache partition from Recovery Mode on my Samsung Galaxy S5 running Android Lollipop 5.0 and when I restarted my device, it showed a black screen with error messages of applications not responding starting with "Unfortunately, MTP has stopped.". It then loops through each application showing this error message and eventually restarts the phone with no access to the System UI. I've tried running the cache partition wiper several times and restarting my device several times but nothing worked. Even tried running Safe Mode but the same thing shows. My S5 is rooted on stock ROM.

Is there a way to fix this problem without wiping data or to at least get my data off of the phone's storage?


问:
Restore settings from Google account
I updated Android manually but all my settings are now lost.

I remember that in the previous updates it would download all the apps again and restore settings from my Google Account.

But this time I skipped the Google Account setup after booting. I thought I can do it later. Now I added the account, but nothing gets restored :(

Title: Restore settings from Google account


问:
How to transfer files from BlueStacks to another BlueStacks on different PC?
I have been playing a game called Star Wars: Commander and I got a new laptop, and I thought BlueStacks would transfer my file to my new laptop from my old laptop and it didn't. I really don't want to start over. Could someone tell me how to transfer my data to my new laptop?</p>


问:
Android reverse tethering is not working?
I have been trying to share windows pc internet to my android tablet( I Ball Slide, Jellybean) over usb, there is an option in "settings" to share internet, but I can't use internet in my device. When I open "Network and Sharing center", screenshot is given below
It shows two networks, firt one has access to the internet and the second one doesn't, also the second network is an unidentified network. From the Status of the unidentified network, you can see that there has been no data received, the device is sending no data, why it is so?
I haven't rooted my device for reverse tethering(and I do not know whether it is rooted or not), the option was there.

What should I do to make it work?

(win 7 ultimate 64bit)

UPDATE: Other users say that the option in the first image named USB Internet is for sharing android device's internet to pc, to clarify this, I am uploading these two images.  This is the first picture before connecting the usb cable

and this is the screen shot of the menu for USB tethering


问:
can't install app, because it's not supported in my country/area
I recently moved to another country and i would like to install bank appliation for my bank account in this country.
however Play Store says i can't do that, because it's not available in my country (i guess it thinks i'm still in a previous country)

how to 'switch' to actual region/country ?


问:
app downloaded not installed but storage card memory decreased
I downloaded an app from playstore app was downloaded but not installed Ab error message flashed can't install app on USB or storage card.
But my storage card memory was decreased.I tried again but again memory card storage was decreased.I cleared cache,rebooted phone,clear playstore n play services data n cache,searched gor files using file storage but can't find anything,its been 2 days know.</p>


问:
How to open a database (.crypt8) file?
I have to open a database (.crypt8) file in my computer. I followed this video "https://www.youtube.com/watch?v=5WViK3dTiAo", but this method it requires root access to work. How could I achieve this?</p>

Title: How to open a database (.crypt8) file?


问:
Google Play stopped syncing and loading game saves
So Google Play randomly stopped working. I can see my games achievements and so forth, but loading the game loads me as a new user completely and I have tried on 9 devices all with the same issue.</p>


问:
Google Now Stopped Working
Recently the Google Now Launcher stopped working. I had all the cards set up and working fine. Not sure why but Google now stopped working. I get an edit telling me " can't load search results" I also get No Internet connection.

I have a Galaxy S3 with 4.4 OS.

Can someone please help me get this problem resolved?

Thanking you in advance.

Frank

Title: Google Now Stopped Working


问:
autocorrect proper word into another proper word
I have typed the word "ill" mistakingly enough that my phone auto corrects it to "I'll". I can't figure out how to make it stop making the switch. I don't want to delete either word because they are both words that I will use.

Since they are both actual words, neither show up in my personal dictionary, which is what other were told to do when I was looking into it autocorrect problems. I have cleared the cache and the data in my settings under the keyboard app. I have unchecked personalized suggestions when looking at autocorrect features. Still, "ill" is automatically corrected to I'll. I don't know what to do.


问:
How to tell what app or process periodically sends SMS messages?
About a week ago I purchased a T-Mobile SIM card and activated it on a $3/mo prepaid program. This program requires you to load your account with $3 per month to keep it alive, and these include 30 minutes of talk or 30 messages.

I am using an old T-Mobile G1 (aka HTC Dream, the first Google Phone, I think) as an emergency or an extremely-low-usage phone, so that $3/mo plan fits just my needs right. Because this is such an old phone, the OS is updated to version 1.6 and can't be further updated.

When first loading the account, the minimum amount allowed was $10, so I figured out it should last for some 3 month, which is great.

To my dismay, I soon noticed that the remaining balance in my account was draining very fast, and I expected to be without funds in a couple of days, although I did not make any calls nor sent/received any texts. Chatting and then calling the customer service, I was told that messages were indeed sent from my phone, apparently w/o my knowledge, but they could not tell me who (what) sent them. The representatives promised to block any SMS activity for this account and to refund my lost money.

A few days later, I now have $0 in my account. What changed is that I can now see a few notifications telling me that:

453: Free Msg: Unable to send messages - Message Blocking is active

The 453 seems to be T-Mobile's service number, as I received notifications from 456 telling me that my requested account changes (supposedly the SMS blocking) is now in effect a few days ago.

Questions:

1. How can I determine what app or process is trying to send SMS's, if the Messaging app does not show any outgoing messages?

2. Why don't the outgoing messages get recorded in the Messages log?

3. How to determine what number is being called (messaged)?

NOTE: A few questions here address similar issues, but unfortunately, the solutions involved installing some permission tracker apps which are incompatible with the old firmware version I have.


问:
Google+ contact's phone number getting mixed up with operator's number
One of my friend has written "not for all" in place of this phone number in his Google+ profile.

Now when his Google+ profile got synced with my contacts on phone a strange thing started happening. Whenever my operator(Vodafone) sends me SMSs regarding GPRS settings, billing info, etc. his name starts appearing in place of my operator's usual names that used to appear.

This is really confusing and disturbing sometimes.

I can't really ask my friend to edit his info on Google+ just for my sake, its completely his personal matter. Also its not possible to delete that particular field from the contact. So is there anything I can do from my side to prevent this mix up? The only thing that I can't do is un-link his Google+ contact. Any other suggestion or workaround is welcomed.

I am using a Moto G(1st Gen. Dual SIM) running Android 5.0.2.


问:
How do I save phone numbers that I have received via WhatsApp to Google by default on HTC One M7?
I have factory-reset my HTC One M7 and am now running android 5.0.2 and Sense 6.0

Someone sent me a contact via Whatsapp. When I click on Save, it is saved to "Phone", and not to Google.

How do I make the phone save to Google by default?


问:
My Nexus 4 won't upgrade - I keep getting an error
I have an unrooted Nexus 4 and running Android 5.0. When the 5.0.1 OTA update came out I could download it and start installing it and then get screen that said error with the android robot on it's back but with no helpful information. I just tried again with 5.1 and I got the same problem. I factory reset my phone and it still doesn't work!

Please can someone advise on what to do?

Thanks in advance.


问:
Being notified when GPS is not moving
I'm using the app Endomondo, to track my cycle training. Almost every second time, I forget to stop the time taking. And the app does not give a warning or anything, so it can keep recording for even hours afterwards before I notice. It is possible to edit the recording, but only by exporting, editing locally, and importing to webapp again. I think it's "impressive" that Endomondo does not notify of not moving, nor allows easy editing, since I know many people make the same mistake again and again. They started talking about this back in 2012, but haven't gotten to it yet.

A solution could be installing another app, that I can start at the same time as when starting the recording in Endomondo. And this other app should then notify me when I'm not moving, to remind me to stop recording in Endomondo. Does such an app exist?

Title: Being notified when GPS is not moving


问:
Sensors Start N Stop Working
I own a Galaxy S4 I9505 device.

Earlier I was running the stock based Custom ROM (Imperium 16.1, Android 4.4.2) on my S4 and there was no problem at all. That ROM gave me supreme performance, stability and battery life.

And then official Lollipop (5.0.1) was released by Samsung. I flashed the latest stock based custom Lollipop ROM on my device and the problem started.

Now what happens is ... **after I flash a ROM everything is working fine. But then after some uncertain period all the sensors stop working on the device.

Sometimes the issue is resolved by a simple restart, at times I have to clear the Cache and sometimes I have to clear the Cache and Dalvik Cache**.

All the sensors start working and suddenly after some time, all the sensors stop working.

I have tried all stock based Custom Lollipop ROMs and even AOSP based Lollipop ROMs, but this problem is persistent with all the Lollipop ROMS.

I am not able to decipher if this is a Software or Hardware issue.

Can anyone help me on this? Has anyone faced this type of problem?

Thanks

Title: Sensors Start N Stop Working


问:
Hidden files missing from my phone
Some of my pics and videos have been hidden by NQVAULT. When my phone memory was full, I cleared cache files from system menu. After that my hidden files are missing from phone. Is there any way to get them back?

I tried different software in Windows 8.1 but nothing working. It's showing connection mode mtp/otp doesn't support. After that I rooted my Android. Then also nothing happening..

Samsung Galaxy dous7582

Title: Hidden files missing from my phone


问:
How to set a device-wide in-app-purchase block?
Similar to the Apple iOS' "restrictions mode", is there a way to bar in-app purchases device-wide?

Would prefer a solution for unrooted devices, but if the only way is by rooting, so be it.

The Play Store is password protected for every purchase, so the main issue is not preventing the purchase itself, but something like blocking the opening of the Play Store or the forwarding of the screen to the store, something in that line.

ContentLicense: CC BY-SA 4.0


问:
How to unbrick Sony Xperia C2305?
Today I was installing custom ROM on my xperia C. After installation completes, I reboot the phone. Now, it is not starting.
I tried pressing keys(power, vol up, vol down) with different different combinations but nothing happens.

The only response I am getting is either connecting to charge or connecting via usb cable to PC and that response is it is just showing RED light as notification only. It isn't getting boot in FLASH mode so that I can Flash it with new firmware.

The reason I concluded for this is that the ROM I installed wasn't for Xperia C.

Here's what I did that led to the current situation:

Copied a ROM of another device (I think it was of Micromax a116) on to my sd card. link to that rom

Rebooted my phone in clockworkmod and wiped all cache, partitions and data with dalvik cache.

Installed zip from sd card.

After successfull installation, again clean the dalvik cache.

Rebooted phone.

There it popped up an option I do not clearly remember, something like "flash recovery mode not installed (yes/no)". I just slide for back option and screen blanked out. After that nothing happens. Only RED Light after connecting USB.

Anybody help me!!

Title: How to unbrick Sony Xperia C2305?


问:
Can I read a data file without root access
I've been playing around with my phone, specifically the file /data/system/gesture.key, and have run into an issue.

Using adb, I can get right up to the file but I can't read it or copy it to my PC. I have two phones I'm working with - an S3 and an LG90. Neither phone is rooted and I don't really want to root them.

I keep getting permission denied error when trying to access the file.

Is there any way to open the file without rooting the phone?

Thanks!


问:
Enable background usage of specific apps on Android 5: LG G3 skin
I remember that on my previous phone running Android 4.3 I was able to disable background usage of mobile internet, yet enable it for specific apps. Instructions to do so can be found on the Google support pages.

Open the Settings menu  on your device.

Under Wireless & networks, touch Data usage.

Make sure you're viewing the network for which you want to view or restrict app data usage. If more than one is displayed, you can switch between them by touching the tabs at the top of the screen.

Scroll down to find the app whose data usage you want to view. The blue bar for each app shows its total data usage for the cycle displayed above the graph near the top of the screen.

To see more data usage details for an app, touch its name.

You’ll see a graph showing just this app's data usage for the specified cycle. Below the main graph, a pie chart breaks out foreground versus background data usage for this app.

"Foreground" data usage means how much data an app uses when you’re using the app.

"Background" data usages means how much data an app uses when you’re not using the app.

To stop background data usage for this app, check the box next to "Restrict background data."

Read the message that appears and touch OK.

Source: https://support.google.com/nexus/answer/2819524?hl=en

This however does not seem to apply at least on the LG G3 running Android 5. Is this something LG moved to some other place? Or has it moved on Android 5?


问:
Can someone please explain why my google services and my data optimizer are using so much data?
Can someone please explain why my google services and my data optimizer are using so much data? This is ridiculous. Here is a link: http://m.imgur.com/TwiuCoL</p>


问:
Alternatives for MTP, PTP and USB Storage regarding data transfer in Android 4.x.x and 5.0
It has been known that USB Storage functionality was removed in Android 4.4.x and subsequent version of Android.

PTP doesn't work very well on cross-platforms, not to mention it restricts files to certain media types.

MTP works in Windows and in some Linux distributions with certain tweaks. However, it is not very stable and breaks often when transferring huge files (on all of my three Android devices).

The question is to suggest some good alternatives for file transfer between Desktop and Android without compromising data transfer speed (via USB cable). It implies that no data transfer apps using hotspot/wifi should be suggested like Airdroid, WeLine, Webkey et al.

Note that the solution should work on at least all of the Android 4.x.x versions and possibly on 5.0 too. A similar question was asked here but its limited to Android 4.0.x.


问:
Default home on lollipop 5.0.2
I have xperia z2 and recently updated to lollipop 5.0.2. </p>

<p>Now everytime I press the home button it asks me whether I want the simple home or the normal one, it's very annoying.
I tried to select the default but it's not working. </p>

Title: Default home on lollipop 5.0.2


问:
Can't send/receive text messages and calls on Samsung Galaxy S4 since update to Lollipop
My boyfriend has updated his Samsung Galaxy S4 earlier this week to the new Lollipop and ever since the update, he's experiencing issues.

His phone is slower, things crash, the battery drains way faster,...

But most important, he can't send/receive text messages or calls anymore and he can't use mobile data.

When trying to send a message, it keeps trying and ends up telling him the message could not be sent. When trying to make a phone call, it does not give the ringing sound. It just stays silent, and then after a short moment the call ends.

In the rare occasion that he can send a message, it takes an awful long time for the message to be sent. he's had this problem at work, at home, at other locations,... He even tried using a different SIM card and the problem persists.

Sometimes all of a sudden he can send and receive text messages. Then a few minutes later the problem comes back. But it happens very rarely that it works again, 9 out of 10 times the problem is happening.

We have no idea how to fix this. We tried a soft reset, a factory reset, switching between automatic and manual network (worked for a while when on automatic), switching SIM cards, trying his card in my phone and vice versa,...

Any help would be greatly appreciated.

EDIT:

Yesterday we downgraded his phone back to KitKat (using ODIN) and the problem persists even in KitKat. Apparently it seems to be a hardware issue. :(

SECOND EDIT:

Suddenly, it works again. He can send and receive messages, make calls, get on the mobile network,...

Funny thing is, he was on the toilet at work when the problem began. A few days later after all these issues, he goes to the same toilet, and BAM. His phone is acting like nothing happened. No more problems. I'd say it was a haunted toilet...


问:
Problems with selecting submenus in a web page in android web browsers
When selecting a web page menu (e.g. in Firefox), the sub menu sometimes shows but you can't select anything out of it. The sub menu closes automatically after a short while. This behaviour is also present in Chrome. I have seen this on android 4 and 5 for certain and read a lot of others having the same problem but so far no solution.

Does anyone have an idea how to solve this?


问:
Should Dalvik Cache be wiped in the case of switching Lollipop ROMs
I know what dalvik and ART is.

But my question is, when switching custom ROMs (All anything above 5.0), is it necessary to wipe the dalvik cache? Wiping the Cache is necessary but wiping dalvik (which doesnt exist in Lollipop) should be necessary or not. What impact will it cause if we wipe dalvik (something not present).

In lollipop, What does the dalvik cache contain(is it an empty folder?)


问:
How can I root the Huawei Ascend Y530 U051?
Which Root Tool Do I Need for my Huawei Ascend Y530 U051?

I have tried kingoroot, one-click, towelroot, z4root, universal-root and none of them work. I'm on Android 4.3 and I'm desperate to root it. I have been googling and watching pointless youtube videos on it and still cant find a root tool that works.

Can you help me to accomplish that?


问:
How do I repair Android DHCP issues?
My phone plan comes standard with a lot of data and as a result, I've been regularly using the Mobile Hotspot feature built into it, on my laptop. The phone is a Samsung Galaxy S5 and is rooted on a stock TouchWiz KitKat 4.4.2 ROM. This has worked very well since I got the phone, and I haven't had any issues till the other day. As usual, I ran out of credit so I recharged. I tested out the data and 4G seemed to be working, but when I attempted to connect my laptop to the WiFi hotspot, it didn't work.

I checked on my laptop and it reported not recieving an IP address from the phone. Surely enough, no other of my devices would connect to it either, and the phone stated that nothing was connected. I tried everything except resetting the phone (lots of root data which is difficult to back up/restore). I attempted to renew the DHCP several times, I restarted, I verified that mobile data was enabled and the APN settings were correct, I restarted all devices several times, I cleared the phone's cache and I verified that the correct necessary hotspot, DNS and DHCP daemons and services were running on the phone.
In addition, I verified that these services were running under the correct permissions.

I also had a look through the Android system log and although there weren't too many errors or warnings, the only interesting things there were

I/dnsmasq (19328): failed to send_ra: face_enumerate,parm.found_context

I/dnsmasq (19328): failed to update ra:send_ra

W/ContextImpl(903): Calling a method in the system process without a qualified user

Later:

I/hostapd(19314): AP-STA-CONNECTED (client MAC address)

I/hostapd(19314): AP-STA-DISCONNECTED (client MAC address)

These two lines loop indefinitely.

There don't appear to be any other errors - just connection and disconnection notices. I have also tried completely removing all WiFi and hotspot settings, caches and CFG files on the phone. Despite this, it didn't seem to make a difference. Although DHCP issues are unlikely to be caused by internet availability, just to be sure I have confirmed with my carrier that there are no new hotspot or tethering policies introduced. Mobile data works fine on my phone and USB tethering to any device works normally, but WiFi tethering doesn't.

I can't for the life of me figure out how or why this is happening. I haven't installed any system or root apps recently and haven't updated anything in the last few months.

Is there anything else I can try?

OwnerDisplayName: Daniel

Title: How do I repair Android DHCP issues?


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If you think this is a duplicate question, please make sure the duplicate actually has a viable answer to my question. Thanks!

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