问:
Samsung Galaxy Note 2 wont charge while on and battery is discharging
So after reformatting my phone, resetting to defaults, nothing has seem to work.
I even took it to my cell provider to see the tech, they didn't do anything.
Whats weird is that it had 20% and so i took the battery out of the phone and stuck it back in, right when it turned on says 55%, strange right? Does anyone know WTF to do I really want to chuck this phone away, nothing but problems :(</p>


问:
Infinite Reboot Loop
I have a HTC EVO 4G (aka Supersonic) running Android 2.3.5 (aka Gingerbread) and last night I turned it off because it was running low on power. I connected it to the charger before going to bed and called it a night, my normal process (except for shutting it down).

This morning I turn it on and it starts up with the device screen (HTC EVOTM 4G) and then a few seconds later it shows the Sprint 4G animation, and usually after that it loads the OS and you slide down continue but now it just reboots again and again in an infinite loop. I can only stop it by pulling the battery.

Anyone experience this? Know what's causing it? Have a solution to it? I need the phone and its critical that I resolve this as soon as possible. Thanks everyone.

Update - 12/18/13

I went ahead and cleared the cache and the dalvik cache and still couldn't get it to boot into the OS, it would load the slide screen and then freeze up for a second and go back into the loop. From then on, it wouldn't even get to that screen, just would reboot after the startup animation.

I was not even running a custom ROM, just the stock ROM rooted but went ahead and flashed a stock ROM back on it and got it up and running but still bugs me that I had to lose all my customization and start over without knowing what the heck went wrong.

Anyone have any ideas?

ContentLicense: CC BY-SA 3.0

Title: Infinite Reboot Loop


问:
How can I root a Samsung Galaxy Ch@t B5330?
I could find no working (but one not working and one based on very old Android version) root package (nor a custom ROM like Cyanogenmod support) for my Android smartphone (Samsung Galaxy Ch@at B-5330) but I need it desperately. I have general Java programming and Linux administration skills. Can I do the trick myself? How do the root ROMs authors do it? I know how to reset the root password on a normal Linux PC but have no idea of how to do it on a phone.</p>


问:
Google+ video sync configured for WiFi-only but took place over 4G anyway
Two days ago, AT&T surprised me with three bandwidth warnings within a few seconds. In quick succession, our wireless account (i) exceeded 2/3 of the 300 MB limit, (ii) exceeded 90% of the 300 MB limit, and (iii) exceeded the limit, resulting in an excess bandwidth surcharge.

I isolated the culprit to one of our S3 minis. According to the onboard usage log, Google+ had unexpectedly burned 200 MB in background transfers. I guess that this was a transfer of a 200 MB video, because that S3 had just taken one.

Google+ came from AT&T preinstalled and preconfigured to automatically back up videos, but only when there is a WiFi connection available. I think this means a transfer should never have occurred over 4G.

I have found numerous forum threads – such as "Suddenly high data usage (Google+?)" over at AndroidCentral.com – in which identical experiences were reported, both in 2012 and 2013. Some of these threads implicate another app called Gallery, which also comes preinstalled and which I do not use and know nothing about. For more examples, Google [ android google+ sudden data usage ].

Is there a long-standing bug in Google+? How can I correct it going forward? Can I force Google+ to honor the WiFi-only setting? Do I need to change a setting in Gallery?

Can I expect to recover the surcharge from AT&T, considering that they were the ones to preinstall and preconfigure the software so that this could happen?


问:
Reduce size from Whatsapp
Whatsapp backups take a lot of space. Is there any possible way to save more space without totally messing up Whatsapp?</p>

Title: Reduce size from Whatsapp


问:
Full size for previously uploaded Google+ Instant Upload/Auto Backup photos
At some point I changed my Google+ Auto Backup settings to upload photos at full size. I am now switching phones and would like all of the photos on the phone to be backed up to Google+ at full size.  But many of these were backed up earlier when Google+ did not do full size backups.

If I do a manual upload from the Auto Backup settings page, will it reload these previously uploaded files at full size?


问:
Galaxy S3 (Jellybean 4.1.2) is blocking callers on Allowed list while in Blocking Mode
I discovered last night that my phone is blocking callers who are on my approved list. I couldn't find my phone and asked my husband to call it... but it went straight to voicemail. When I finally found my phone it showed a missed call from my husband, with an indication that the call was [blocked].

I fiddled with the Blocking Mode settings - I switched from Custom List to Favorites to All Contacts - but his calls only came through when Blocking Mode was off. What could be the cause for the erroneous blocking? Am I just S.O.L. here or is there a fix?


问:
Can PIN lock be disabled/enabled via Secure Settings with full device encryption?
I use Tasker and Secure Settings to enable/disable PIN lock based upon connections to select WiFi and Bluetooth devices.  I've recently unlocked the bootloader and rooted my phone.  I would like to use full device encryption.  Will I still be able to toggle the PIN lock?</p>


问:
"Low on space" message, but nothing appears full
GalaxyS (SGH-I897), running Android 4.0.4

Short problem description

I keep getting "Low on Space: Phone storage space is getting low" error in my notifications bar, but neither the SD card nor the phone appears to be close to full.

More Details

Please see below for screenshots showing the error, and also showing that both internal storage and SD card storage have plenty of space.  Nonetheless, this error notification has been persistent for 2 weeks, and sometimes I even get an error when using gmail that says it can't sync because there isn't enough space.

This similar thread recommends the tool DiskUsage, which I installed, but the numbers reported by it match the numbers in the screenshots below.

Is there some other storage device besides internal storage or the SD card that I should be looking at?  Maybe a subsection of the internal storage?

How can I fix this?

Error Itself:

Internal Storage, 1.4G Free:

SD Card, 7.5G Free:


问:
Can I connect an Android phone to a DSL Modem via USB?
Is it possible to connect my phone directly to a DSL line (Via USB) and then use tethering features to make my phone behave as a Wireless Router ?</p>


问:
Android freezes while sleeping - how to find why?
I can't wake up my Android DNS M83g tab from sleeping for several weeks. It freezes totally - pressing power button cause nothing to appear on screen, only holding it pressed for 10-20 sec helps to turn device off and then boot up from start. I can find nothing in logs using catlog since it shows only this time boot logs. Is there any known reason of the problem or could someone give me an advice to localize it (other then remove all recently installed/updated applications one by one and Factory data reset)?</p>


问:
icons disappear from desktop when app updates
On KitKat when I have a shortcut on the desktop and the app updates the shortcut on the desktop disappears, is there a way to stop this from happening?</p>


问:
wiped SD card, trying to find text messages
A friend borrowed my microSD card to take some pictures and ended up deleting the android directories.  I assumed that text messages were stored on this card.  No message history appeared after the card was removed.  incoming messages from old contacts started new threads.  contacts and everything else stayed.

I want to find the year's worth of old text messages.

I've recovered some files using photorec (mostly pictures and audio from my phone).  The only non-obvious files are a 10MB .elf file and a 72KB .SQLITE file.  the directory structure is not preserved, so all files appear in one directory.

does this approach make sense?
what file extension am I looking for?
how do I read the database that texts are stored in?


问:
Can I use Tasker to enable and disable WiFi hotspot functionality?
I have an Android tablet (Nexus 7) and an Android phone (HTC One) and I use my phone as a WiFi hotspot so that my tablet (which doesn't have it's own internet connection) can access the internet when I'm out and about.

Since running a WiFi hotspot is a very battery intensive activity I was looking at using something like Tasker to disable it under a specific set of conditions;

Whenever the HTC One is in range of a specific WiFi network (SSID is Pegasus), disable the WiFi hotspot

Whenever the HTC One is not in range of the same specific WiFi network (SSID is Pegasus), enable the WiFi hotspot

Whenever the HTC One is outside of range of the Nexus 7, disable the WiFi hotspot

Is this possible with Tasker? I suspect that the first two steps would be but since it's the Nexus 7 connecting to the HTC One and not the other way around the last one might not be possible?

If this isn't possible with Tasker, is there anything that can provide this kind of functionality?

Any ideas on how I can achieve this?


问:
How do I have the contacts name only once a text comes?
on my samsung android 4.3 I turned off in messages settings preview, now when I receive a text I get "new text messages". When turned on I get the contacts name & some of the text written from the person. Is there a way I can receive the contacts name only?</p>


问:
How can I merge a contact between the phone only list and my Google account?
I managed to create a phone-only contact which was then linked to the contact's Facebook account. I've also got a Google contact for the same person which has additional contact information in it.

I'd like to merge the contacts so that I only have one entry for this person but with the combined information. I don't want to have to copy the information manually between the accounts.

The phone is running Android version 2.3.7 and it's the contacts manager that came with the phone.

I've checked the similar questions, bit none seems to address my specific issue.


问:
After moving App data to SD card, the data still occupy space in internal SD
I moved all application data to the SD card but, while I was navigating the internal storage files I came across a folder of the millionaire game, holding a huge amount of data and consuming my limited internal storage.
App info
Millionaire
Total                            173 MB
App                              0.93 MB
USB storage app       23.41 MB
Data                             60 KB
SD card                       149 MB </p>


问:
"Connection to server lost / Touch to retry" when resuming Youtube video
Viewing videos with youtube app works fine except when I close the app and get back to the video later. I see the cursor at the time I left it but I get "Connection to server lost / Touch to retry", the video won't resume and touching actually doesn't seem to retry.

The only option is going back to the main app screen, swipe away the video and opening it again.

This happens both on a Samsung Galaxy S3 with Android 4.1.2 and on a Nexus 5 with Android 4.4.2

Is there anything I can do to fix this issue and be able to resume videos again?


问:
Edit navigation bar (Soft Buttons)?
I just bought a low-end Android tablet (using Android 4.2.2), and it has 6 virtual buttons on the bottom of the screen :

Home

Apps

Back

Volume down

Volume up

Screenshot

I don't need the last 3, since I have physical buttons for the volume, and I rarely make screenshots. I looked for a way to remove them but couldn't find anything.

Any suggestion appreciated.

Thanks

Title: Edit navigation bar (Soft Buttons)?


问:
"Youtube for TV" device compatibility
I have a Genesis GT-1230 tablet, running Android 4.0.3. It has an HDMI output that I can connect to my TV. My goal is to use Youtube Remote on my phone, paired to the the Youtube for TV app watch videos.

I already have Youtube Remote on my phone, and I can pair it with a browser on my computer. However I'd like to try it on my TV, and I got no HDMI devices other than this tablet. So my plan is to at least try Youtube for TV on this tablet and see if it suites me.

I'm trying to install the "Youtube for TV" app but Google Play says it is incompatible. So I tried to install on other device, and sideload it to the tablet (I have done this before sucessfully). The problem is, I can't find any device compatible with it.

I have tried with Motorola MB300, MB525, Moto Spice, Moto G, Genesis GT1230, (and "emulated" Nexus 4, Galaxy S3, Nexus 7 and ASUS Transformer Pad TF300TG). None was successfull.

Title: "Youtube for TV" device compatibility


问:
Delay on screen wake
When I push my power button to wake my device it takes 1-4 seconds for the screen to turn on and show the lock screenp. I have seen that others have solved the issue by turning off power-saving mode and auto-brightness, but I have done both and neither fixes it. What could be causing this lag?

I just updated my Note 2 to Android 4.3 although I have been experiencing these symptoms for a long time before that. I am using ADW Launcher.

Title: Delay on screen wake


问:
android updated system app, how to remove the "updated" status?

link2sd can list  all updated system apps. as this screenshot shows.

I thought that link2sd categorize an app as UPDATED when it finds the same app in /data/app and /system/app. So I deleted the Gmail app from /system/app, and the corresponding file from /data/dalvik-cache. but link2sd still say Gmail is updated.

I'm just wondering, based what criterion that link2sd categorize an app as UPDATED?

OwnerDisplayName: David Dai


问:
Change system font on 4.2.2
On my GT-I9105P with 4.1.2 there was a section in the Settings where I could change the system font. But now I've done the 4.2.2 upgrade and the Settings have been redesigned I can't find any option to change the system font. How can I change it?

P.S. I would not use any applications to change the font, so I wanna know if the option to change the font have been removed or simply I can't find it.

EDIT: I found the solution.

Title: Change system font on 4.2.2


问:
Google+ data connection issue on Samsung S4
I'm having a strange problem with my Samsung S4 using the stock, current firmware. The phone is new and straight out of the box. Updates have been allowed to proceed and now report current.

Google+ reports 'Data connection error'. This error should not be taken literally as there is very clearly a fast network connection available: on both 4G and wifi. Every other network accessing app, including other Google apps (including those using the Google user account) work fine.

I've cleared the app cache and data without effect. The issue existed prior to and after a Google+ app update.

Any suggestions?


问:
Check network availability using phone's modem (low level)
I am trying to find network availability using my phone's GSM modem. Last night I had almost done it using following procedure with adb shell connecting phone with Ubuntu laptop.

Terminal 1

```<code>./adb shell
su
cat /dev/smd0
</code>```

Terminal 2

```<code>./adb shell
su
echo -e "AT+CIND?\r" > /dev/smd0
</code>```

In Terminal 1 I had CIND 4 4 1 x x x output and I figured it's 3rd digit which is either 1 or 0 depending on network is available or not. Now today after factory resetting my phone, I can't reproduce this result.

What could be wrong? I have already tried ttySMD0, ttyGS0, ttyUSB0 etc.


问:
email dark background with android 4.1.2
I have Galaxy S2 and upgraded it to 4.1.2. All microsoft exchange emails when opened has dark background. How mails background can be changed to white?</p>


问:
LG Optimus G Pro - automatically turned on when charging
I use OGP for last 2 months, everything is fine untill last night. I turned off the device and plugged in the usb and charge it. Suddenly the device is turned on. Try to turned it off again, but it just like restart. Back again to home screen. Root my phone about a month ago and no issue at all. Except last night. Rom is stock 10e.</p>


问:
How do I change the spell check language independently from the hardware keyboard layout
I'm using an Asus Transformer Pad Infinity with a German (Swiss variant) hardware keyboard and with the standard Asus variant of Android version 4.2.1.

On a regular basis I need to type in both German and English, so it would be nice to have spell checking in both languages. However, whenever I switch to English spell checking, then the tablet assumes I'm using an English keyboard layout and swaps keys around such as the Y and Z keys. Is there any way around this?


问:
"Unfortunately gallery has stopped" error appearing while running Android x86-4.3 in VirualBox
I have installed Android x86-4.3 in VirtualBox yesterday! But there are some problems:
Gallery, Camera, Navigation, Live Wallpapers etc. won't open and showing error "Unfortunately  has stopped".

I tried checking the RAM while running processes: I totally allocated 512 MB DDR3 RAM and it is only using half of it i.e., around 220 MB while running other applications. The browser is working fine. But it has also showed the same error once while I opened too many tabs in it.
When I run android in Bluestacks, it is working perfectly alright. However, I want to try it in VirtualBox. Any ideas what might be the problem!

Here are the details of the Virtual OS:

Allocated RAM: 512 MB (DDR3)

Allocated Hard Disk Space: 4GB

Processor: Intel Core i3 (3rd Gen)

Allocated Video Memory: 128MB

I also tried clearing the cache in apps. But doesn't work. Any help would be great! thanks!


问:
How to add a shortcut to the list of installed apps (or to a widget)?
I have an app (Pleco) which has created a shortcut (study flashcards). I want to execute that shortcut from the screenlocker (Go Locker), but it only allows to add either installed apps or widgets.

My idea to solve this issue was to create an app from the shortcut. I tried with Tasker and its AutoShortcut plugin as it is suggested here, but the built app simply does not work.

Is it a correct procedure to solve this issue? Another possibily would be to add the shortcut to a widget, but how?


问:
Galaxy tab 10.1 charging with USB 3.0
When referring to this post, it seems like the Samsung Galaxy Tab should be able to charge while connected to a USB 3.0 port while running.

I've noticed that when I have my Tablet running and plugged into a power strip, the device does gain battery rather than losing it.

However when I try to charge with my USB 3.0 in my laptop, the device loses battery life. It still charges, but the running device uses more battery than it gains from USB 3.0.

Am I doing something wrong here? I have the Samsung USB drivers installed and I am using the original Samsung cable. Perhaps there is some problems with my battery? Or am I still supposed to lose battery life while plugged into a USB 3.0?

Title: Galaxy tab 10.1 charging with USB 3.0


问:
MMS video auto compression
I have a new Samsung Galaxy Note 3.  I love the device, but sending a quick video MMS seems to be a challenge.

On other devices I have used, the video will automatically get compressed to a very low quality and will just send it.  This is all I want.  I don't need to send super clear video, just a small compressed video to family and friends.

Are there any apps that will handle this automatically without making me upload to a cloud service and sending a link or some cumbersome process?

I also don't want to have to choose a low quality recording beforehand, I would like the good quality stored on my phone, but send a simple low quality clip over the air.

Title: MMS video auto compression


问:
Trouble with certificates
I have a Samsung Galaxy tablet model GT-P3110.

I keep getting a message on my tablet each time I go to my Hotmail and Outlook email that there is a problem with the security certificate for these sites.

All the reading I'm doing so far would indicate that it might be a fault with my tablet.

I have already lost access to one email account, and while I cant be sure it was because of me ignoring the security certificate warnings, but I do not want it to happen again.

Can you please help. My date and time seem fine when I go into my settings, is there anywhere else I should be looking? Will I need to do a full factory reset – and if so how do I do this?

Title: Trouble with certificates


问:
Auto Wifi logout
When I login to my home wifi network through my LG G2, the login page dies as soon as I minimize that window. I have tried logging in with chrome, firefox, opera but the same problem persists. The login page should be active all the time, otherwise it logs out after 30minutes. So how can I keep that login page alive in the browser ? The system works fine in my laptop and even in my nokia phone, which allows me to minimize that login window, but android phone doesn't. Kindly tell me the solution.</p>

Title: Auto Wifi logout


问:
Android permission and ProtectionLevel
How Do we find what level of Android permission is required for a specific permission.

Lets say we have android.permission.SET_ACTIVITY_WATCHER(docs)

What permission group does it fall into?(docs)

Regular

Dangerous

System or Signed

Signed

Title: Android permission and ProtectionLevel


问:
Security risks of rooting your android smartphone

Possible Duplicate:

  Are there any risks to rooting a device?

What are the security risks specific to rooting your android smartphone? Are there any security exploits available because you have a rooted android that are prevented on non rooted androids? Examples or links to more info would be greatly appreciated.

ContentLicense: CC BY-SA 2.5


问:
Remove OS from Multirom & install ubuntu touch properly
I have Nexus 7 2012 model. I have installed MultiRom Manager & tried to install Ubuntu Touch Saucy. I tried twice & both failed. As a result now I have 3 options at boot including two Ubuntu, none of which works.

The error I face in running

```<code>Path /realdata//media/0/multirom/roms/ubuntu_sauc1/data.img not found
Failed to find boot file: /realdata/media/0/multirom/roms/ubuntu_sauc1
</code>```

I guess the problem lies with the fact that, TWRP stops in the middle of some finishing work, when I reboot from android just after installation through manager & as I press power button it starts with MultiRom choices. TWRP crashes as soon as any button is touched. That's probably the reason its failing.

I assume its a lot of questions at a time, but any sort of help is highly appreciated.


问:
Where do you download the current firmware for the Galaxy Note II?
I bricked my phone via the official Kies update function and now I want to restore it with Odin. However, I find no place where you can download the current firmware files, most of the sites are only for registered users or the file is taken down... Does anyone know an official firmware repository or something similar? My model number is GT-N7100.


问:
Pure news (scollable) not working
I want to have news appear on the home screen of my tablet so I got Pure news widget. I installed it and added the widget but the widget is empty (no news shows up). I assume I need to add a feed somehow. How is this done? In the widgests settings under the tab "providers" there's a section "feedly source" and in it there's a button to "login with credentials" and if I click on it asks me to login with Google. Should I do this? I don't feel comfortable giving my Google credentials to random people and I've never heard of a "feedly" before.</p>

Title: Pure news (scollable) not working


问:
How do I record video from both front and back facing cameras at same time?
How do I record video from both the front and back facing cameras at same time?</p>


问:
how to view custom google map on my android device?
I have created a new map (layer) using the website google-map-engine.

how can I view this custom map on my android device?

It used to use google-map web site and then view on mobile via official app

but now i don't find the way to view. Is it not accessible anymore?

Does someone know how to show saved maps in the official google maps app?


问:
How to image MTDblock device?
I am trying to image the mtdblock of an android 2.1 Sony Xperia phone that has YAFFS2 file system. I know there are mtdblocks and mtd files in the device. Using nanddump, I have successfully created images of mtd0, mtd1 and mtd2 partitions. But when I attempt to mount them, either with Linux mount command or busybox mount cmd, it says block device required. So apparently these images of mtd devices that I have in hand are of no use.

Now when I try to image the mtdblock device, it is giving me error

```<code>nanddump: MEMGETINFO: Inappropriate ioctl for device
</code>```

I have enabled yaffs2 filesystem in my linux kernel but they also expect input image file of mtdblock device, that I am unable to make.

So the real question is, how to image MTDblock device?

Tried:

change the r/w permission of mtdblock files to 777

changed ro to rw of mounted partitions

No luck yet.

Title: How to image MTDblock device?


问:
Do I need to flash stock recovery same as my stock rom's version?
I am using Android 4.1.2 with TWRP custom recovery, now I want to flash stock recovery, do I need to flash the recovery from 4.1.2 stock ROM or any version of stock recovery is ok ? Thanks</p>


问:
How to disable AEC (audio echo cancellation) on Android 4.2?
For some of my experiments, I need AEC to be disabled.
Are there audio modes (loudspeaker, headset, bluetooth) when AEC is definitely disabled?

Are there any platform-specific options for MTK65xx chipsets?


问:
Connect Smart TV to laptop
I am working with not a well known Smart TV manufacturer, It uses Android 4.0. I want to customize its dashboard and splash animation played during the system loads. Working on my own launcher and dashboard alongside, but now when I have hit a roadblock when the testing phase has arrived. I cannot use a smart tv emulator for this purpose as the manufacturer is not either of Samsung, LG or Google.

I want to be able to test it on the Smart TV itself, but I cannot connect to the device through my laptop. Wi-Fi, LAN or usb cable connection, tried all, but I cannot access the system itself as an emulator on my AVD manager... Any ideas where to proceed from here?

OwnerDisplayName: faizanjehangir

Title: Connect Smart TV to laptop


问:
Changing the default location of Receiving files of bluetooth
Hi I am user of Samsung Galaxy S4, I want to know how can I change the default location of the Received files to SD Card instead of the phone storage?</p>


问:
KitKat calendar defaults to AllDay on new day event
In month view (my default) is there a way to stop new events defaulting to all day? Other views use my default setting of one hour.</p>


问:
Note 3 keyboard saves URLs I type into incognito tab
Just purchased a Note 3 recently.  I'm using the stock keyboard.  When I go into an incognito tab within Chrome and type in a URL, then later on in the day return to Chrome (regular tab). When I tap in the URL field the keyboard pops up with the last three URLs I typed in.  One of which being the one I used in incognito. Any idea of how to stop this from happening?

(If the answer is technical I'm an Apple guy so keep it plain English. Thanks.)


问:
How to move App Data from rooted Gingerbread to unrooted KitKat?
I want to move App Data of some apps from my rooted Galaxy S (Gingerbread 2.3.5) to unrooted Nexus 7 G1 (KitKat 4.4.2) & I don't want to root my Nexus 7. So, Titanium Backup restore on Nexus 7 isn't possible.

My Gingerbread device is already rooted to backup App Data & App Data restore to unrooted KitKat device is also possible. So, technically, the solution is feasible.

This is a headache for me because its a major version class shift (ICS+ versions are significantly different than prior versions). Please, help.


问:
Samsung Touchwizz: disable alarm control with physical button
I'm the happy owner of a Samsung Galaxy S4 mini Duos, and that fantastic phone comes with touchwizz, probably one of the most horrible android version I ever see.

But I'm not here to insult Samsung, when you set an alarm and it rings if you have the misfortune to type one of those insulting word volume rocker button it just turn off your alarm without snoozing it.

My question is then, own can I disable forever that behaviour who is to me like one the most annoying ever on this phone and probably on any touchwizz rom ( the first being the profanity checking on Samsung keyboard that can't be avoided )

If it can in fact disable any physical button control on the alarm that would be fantastic.

And please do not try to tell me to install another alarm app that's not what I want.
Edit 1: If it means modifying system file with root access I'm interested though.


问:
How do I answer an incoming call on my Karbonn Smart A10?
My new Christmas present is straight out the box... It's my first touch screen mobile.

I've put in my SIM and copied some of the contacts. That's it, that's all I've done. I get my first incoming call and I can't answer it - I'm tapping everywhere on the screen. I had to call the caller back once the ringing timed out.

I've read through the quick start user manual but there is no mention there.

How do I answer the call?


问:
Video output on audio port
I've seen phone that are able to output video from standard Android audio port or jack.

Given this, I am thinking of what are the possibilities of doing an android app that can output video from the standard Android audio port?

I am not sure but maybe those existing Android phones have video out hardware interfaced to the microphone part of the audio port (just assuming), and I am also assuming that the Android phone microphone input is not capable of outputting signals in any way we tweak it.

So I am thinking of outputting video signal through either the L or R audio port. If this is the only feasible solution, what are the things that should be considered?

Title: Video output on audio port


问:
Galaxy Note 3 requiring pin for lock-screen due to e-mail account
After syncing my work email with my new Samsung phone I received an on screen notice that in order to have the account synced with my phone I was required to have a password on my lock-screen.

This is very aggravating to me to constantly have to enter a pin over and over. Is there anyway to have both the email account but no required pin? I have gone to settings>Lock Screen> Screen Lock but can not seem to find what I am looking for..

Any advice would be appreciated.


问:
Google Play store issue security breach
My daughter got an Samsung Galaxy 3 7" tablet for Xmas. She also got some Google Play gift cards. My husband put in a credit card to buy a game for her. The next day there were 4 games downloaded that she did not pick - and not to her tablet. We had to cancel the credit card. Now her Google Play app will not connect to the internet even though she can access it via typing in from internet. Games she did buy are not showing up on her tablet. Google Play, Amazon and Samsungs reg site who up on her tablet as having bad certificates???? I have searched the google play site and can't find a place to access her gift cards to see if they have a balance or have been used.</p>

Title: Google Play store issue security breach


问:
K9-Mail keep email open
When switching back to k9 mail using the app-icon on the homescreen, a previously displayed email is going to be closed and the list of emails is going to be displayed instead. This doesn't happen when using the 'Last-App'-function.

As I don't have the 'Last-App'-button in my bottom bar I don't use it in my workflow (tbh, I prefer it like this anyway).

How can I stop emails from being closed when opening the app from the homescreen?

Title: K9-Mail keep email open


问:
Samsung Galaxy Tab 3 not working with Android SDK
I can not get Samsung Galaxy Tab 3 to be seen in Eclipse Android SDK. I believe the problem is related to the usb device driver.

I loaded Samsung Kies and it sees the device fine, just not Eclipse.


问:
Android E-Mail App: How to limit contacts for new email to contacts of specific account?
I am using the native E-Mail App on an Samsung Galaxy 4 Mini with Android 4.2.2. I use the app to read and send business email with my outlook exchange account. For other emails I use gmail app. When composing a new email in E-Mail app and start typing in the "To:" field suggestions of email addresses occur. So far so good. But:
Most of the suggested addresses are old gmail contacts or otherwise private contacts. This expands the list to a near unusable length. Is there a way to tell the app to only list contacts from the account entered in the E-Mail App?
If not, can I store addresses I often use in a favorites list or such (I was hoping this would happen by itself over time, but after month of use the app still does not remember anything of the sort)?
Please when suggesting a solution also understand that I do not what to general limit contact sync on my phone to the outlook contacts.

Any tips would be appreciated.
Monica


问:
Internal storage space running low after rooting and deleting unwanted apps
I am currently using a Samsung Galaxy GT-I8190 (S3 Mini) running Android 4.1.2 and I rooted my phone in order to get more internal memory to my disposal. It worked, but only for a little while. Then the memory started getting full and pops up a "warning" to say that the storage space is running low. I have an app installed by the name of "Clean Master" and I frequently clean the "junk" files on and clean it at the advanced side too. I also do a memory boost, but nothing helps to clear out memory space. I also cleared out my clipboard of everything I had copied and I unrooted my phone to see if it would help, but the memory just got fuller again so then I rooted my phone once again to take away the unwanted apps. I also have a 4GB external memory card in my device and I've moved all the apps (part of them that could move) to the memory card, but no positive results to my liking as yet. What can I do to clear up the memory? Because I can't even update my current apps because of the lack of space. Please help! Thanks</p>


问:
No menu entry for mobile network mode after installing CyanogenMod
My phone doesn't get a mobile signal anymore after installing CyanogenMod 10.1.3-i9100 on my Samsung Galaxy S 2. The IMEI is the same as printed in the battery compartment, Wi-Fi is working fine, and it finds mobile network operators, but even after setting it to "Choose automatically" it doesn't connect. When I try to phone someone, it says "Mobile network not available."

According to a CyanogenMod FAQ there should be an option Settings → Wireless & Networks → More → Mobile Networks → Network Mode, but there is no such option.

In "Wireless & networks" I see the following:

Aeroplane mode

VPN

Tethering & portable hotspot

Mobile networks

Mobile broadcasts

In "Mobile networks" I see the following:

Data enabled (checked)

Data roaming (unchecked)

National data roaming (checked)

Access Point Names

Use only 2G networks (unchecked)

Network operators

According to the Android Testing Menu (*#*#4636#*#* → Phone information)
 the network type changes between "HSDPA" and "GPRS". I'm not sure if the "Set preferred network type" setting is the same thing as the "network mode", but changing it from the original "WCDMA preferred" to "LTE/GSM/CDMA auto (PRL)" doesn't seem to help (tried restarting radio afterwards as well).


问:
Restore home-screen auto-rotation after wallpaper change
On a pretty new Galaxy S2+, the home screen used to rotate when the device was rotated. After switching the wallpaper of home screen (and perhaps lock screen as well), using the Photo app shipped with the device, the screen no longer rotates. Not even after restoring the original wallpaper, and not after rebooting the device.

To set the wallpaper, I use the corresponding entry in the Settings. I then get a choice of target, whether I want to affect home screen, lock screen or both. When I choose both, I get a choice of Gallery, Live Wallpapers and Backgrounds. When I choose home screen only, then I get the same three but Photos as well. So that's the reason I believe I might have set both. All the item names were translated by me, the actual English versions might be called slightly differently.

How can I restore the factory default of an automatically rotating home screen, without completely resetting the device to factory defaults?


问:
Why is my Wi-Fi connection saying "no account found" when I try to connect via wireless networks?
I have enabled Wi-Fi.  I try connecting to various networks, and during the IP address obtaining process, the notification will popup from the Wi-Fi app saying:

"No account for ___________ network. Try again."

It does this with many different Wi-Fi apps, including the stock app (the one that comes default), other apps, etc. It also does this with any network, within range, yes, and still the same problem arises. I checked all system written logs and there's no errors, or anything that could explain this issue.

There's nothing wrong, I believe, with the hardware on my phone, nor the software(for the most part).

However, this has been suddenly happening with any wireless network. What could be causing this?

OwnerDisplayName: Polly Sure


问:
How to change lockscreen display time on Samsung Galaxy S4 Plus?
When I press the power button the screen is immediately turned off and locked. When I press the power button again the screen is turned on and the lockscreen is displayed. However, it is only displayed for about 5 seconds before the screen goes off again. I have to start interacting with it straight away to prevent the screen from turning off. I don't always want to unlock the screen, sometimes I just like to press the power button to have the screen turn on so I can work my way in the dark, as a flash light replacement. But that doesn't work if I have to keep pressing the power button on and off all the time.

Is it possible to change this time? I would like to have it set to at least 30 seconds, or have it stay on all the time until I press the power button again. Is this possible?

I'm not sure it's possible to have the screen stay on until you press the power button, but my old HTC had a longer display time when the lockscreen is shown.

I'm on Galaxy S4 Plus (GT-I9506) with Android 4.2.2 (Jelly Bean). It's stock ROM and everything, brand new.

I tried to google this and it appears that the only time setting you can change for the lockscreen is the time it takes for the lockscreen to actually activate. Below is a screenshot of the "Lock screen" page on an Galaxy S3 with Jelly Bean.

(image source: Android Central)

There was this "Secured lock time" option. It said "the screen will be locked after 30 minutes of inactivity." This is on the Galaxy S3. Mine is a little bit different. Below is a screenshot of the lock screen page on mine.

This however does not change the display time of the actual screenlock... screen (sorry). It only defines when the screenlock will become active.


问:
How to remove a system file using adb shell?
I have an android system file in  /mnt/extsd/.And I wanted to delete that file.

```<code>root@android:/mnt/extsd # ls -l
d---rwxr-x system   media_rw          1980-01-01 00:00 clockworkmod
root@android:/mnt/extsd #  rm -r  clockworkmod/
Aborted
</code>```

So, I remounted the system in write mode and tried the same with no luck.

```<code>root@Tron:/home/aswin# adb kill-server
root@Tron:/home/aswin# adb remount
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
remount succeeded
root@Tron:/home/aswin# adb shell rm -r /mnt/extsd/clockworkmod/
Aborted
</code>```

I tried to set a 755 permission by issuing these commands , but they wont work.

```<code>root@android:/mnt/extsd #  ls -l
d---rwxr-x system   media_rw          1980-01-01 00:00 clockworkmod
root@android:/mnt/extsd # chmod 755 clockworkmod/
root@android:/mnt/extsd # ls -l
d---rwxr-x system   media_rw          1980-01-01 00:00 clockworkmod
root@android:/ #  chown root /mnt/extsd/
Unable to chmod /mnt/extsd/: Operation not permitted
</code>```

How can I fix this ?


问:
Screen occasionally won't come on
I have what I believe to be a software problem with My Galaxy Nexus running 4.2.2. Occasionally the phone will turn it's display off, or I will manually trigger this with the lock button. Minutes, maybe hours later when I want to use the phone it refuses to respond to the power button. The screen will never come on with it. However, it will come on if a call comes through. Texts still vibrate the phone and flash the indicator. Holding the power to force the power off does not work, it requires removing the battery. Then it works like normal. Any ideas?</p>

Title: Screen occasionally won't come on


问:
OS X utility to create stock images
Before I spoil my new HTC One.

I needed a little help with the following

Create a backup of the recovery

Create a backup of the system

Create a backup of anything that maybe required to bring the device to factory defaults

I am not interested in backing up SMS, Call Logs, and any user data.

The phone is not rooted. It has literally been taken out of the box and I walked thru the setup wizard to turn on USB debugging.

Title: OS X utility to create stock images


问:
How to display the correct contact name when dialing?
I tap on Phone and start typing the first letter of the contact name on the keypad. For a contact named "Home" that would be 466 (H, O, M). The contact "Home" is suggested. I tap on it once, the phone number populates the screen, and then I tap the big green dial button. Simple! Or so I thought... Now the phone displays the funny picture I have of Adam sticking out his tongue, and it says "Dialing". It also later shows up in the Log as if I have called "Adam".

How on Earth is Adam the person I'm calling? I specifically chose to call a contact named "Home". It makes me think I have dialed a wrong number, so I usually hang up and re-dial, only to see Adam sticking out his tongue, again! I want it to display the correct contact name. The correct contact name is "Home". Obviously! What can I do about this (if anything)?

About device...

```<code>Model number
GT-I9506

Android version
4.2.2

Baseband version
I9506XXUAMHD

Kernel version
3.4.0-1677708
dpi@DELL217 #1
Fri Sep 13 20:52:59 KST 2013

Build number
JDQ39.I9506XXUAMI3
</code>```

Update...

I spoke to a Samsung rep today and he told me to make a backup with Kies software and reset the phone. I have restored the contacts back to the phone from the backup file. The problem remains. However... I have made some new discoveries that might shed some light on the problem. Namely, this only affects contacts that were synced to the phone from a PIM software, which in my case is Microsoft Outlook 2010. It does not affect contacts created right in the phone.

Replicating the problem...

To replicate the problem, do the following.

Start Outlook 2010 and go to Contacts.

Click on Home and then New Contact. Give it the name "Home" and set
the "Home" phone number to something like 0011223344.

Click on "Save & Close". Note! Make sure you don't have a contact
with this name already, neither in the phone nor in Outlook.

Now repeat these steps to create a second contact in Outlook. Name
it "Adam Sandler" and set the "Home" number to 0011223344 (the same
as above) and the "Mobile" to 9988776655.

Now connect the phone to the computer.

Start Samsung Kies and go to Sync tab.

Check "Sync contacts with" and select Outlook from the list. You can
select either "All contacts" or "Selected Contacts folder" and then
select which contacts folder to sync with. Note! If you select the
second option you need to make sure you check the contacts folder
you saved the previously created contacts to in Outlook.

Click the Sync button when ready. When done, disconnect the phone.

Open the Phone app on the phone, dial in HOME, tap the contact name
that comes up and then tap the green dial button and watch what
happens. Expected behavior is that it should dial 0011223344 but
display "Adam Sandler" on the screen, instead of "Home".

This is probably a bug of some sort... Because if you delete these contacts on the phone, and in Outlook, and start all over again, this time creating the same two contacts inside the phone, then there is no issue with dialing. If you dial HOME it will actually say "Home" right on the display. Regardless of how many other contacts you got in your phone book that share the same phone number. Hurray! I'm not sure where to go from here though...


问:
Calendar alerts stopped working after upgrading my Galaxy S3 to 4.3
I recently upgraded my Samsung Galaxy S3 to Android 4.3. Now my calendar alerts don't pop up anymore.

Any ideas on how to get my calendar alerts working again?


问:
Does Android Jelly Bean 4.1 Support Microphone Audio Input from mini USB Headset?
Samsung Galaxy Tab 3 7.0 (WiFi) 16Gb device running Android Jelly Bean 4.1

This tablet has a 3.5mm jack for stereo audio out. No microphone jack. At least this is the way I'm reading the specs:  http://www.samsung.com/uk/consumer/mobile-devices/tablets/tablets/SM-T2100ZWABTU

I want to run Skype on this tablet https://play.google.com/store/apps/details?id=com.skype.raider

I have used Skype in my Win7 laptop with a USB headset for years with great results - high quality phone calls; as good as my home land-line phone and far better than magic jack.

Has anyone used this tablet in this configuration before or something close? Successfully?


问:
View text messages with time on the side
Today my Samsung Galaxy S3 (running Android 4.3, using Verizon Wireless as a service provider) received a software update, update_SCH-1535_MF1_to_ML1, which changed the way that text messages are displayed in the default texting app.

The time of a text message used to be displayed to the side of the message but is now displayed below the message, greatly reducing the number of lines of text that can appear on the screen when viewing text conversations. The new view also makes a picture of the sender and recipient appear, reducing the avialable width for text.

It used to look something like this:

Now it looks more like this

Is there a setting to fix this?


问:
Does the API expose the ability to use multiple network interfaces simultaneously?
I'd like to know if it's possible for an Android application to transfer data via WiFi and mobile simultaneously, or any other network interface such as USB or Bluetooth tethering, without requiring root privileges.

Enabling WiFi appears to disable the mobile data connection, but I want to know if this can be overridden using only the API. I'm only interested in individual applications doing this, such as the possibility of multihoming-capable VoIP or Bittorrent clients, or other peer-to-peer applications, in order to aggregate throughput capacity, improve reliability, and enable seamless handover. All ordinary ‘naïve’ applications should behave as they do currently.


问:
Stop device connected as host charging connected device
I am connecting a Nexus 10 to an Arduino board in host mode. The Arduino board has its own power supply, but is still drawing power from the tablet. This post suggests that this may happen if the consumption is less than 6.6v

Is there a way of telling the tablet to not charge the Arduino board?


问:
Unlock Root reports success but still cannot perform root user actions
Initially, I have tried to root my tablet(retail brand, not one of the mainstream ones) using SuperOneClick but it failed. Then I seeked UnlockRoot's help. Everything ran so smoothly. It reported success and it restared my tablet to complete the process.

The problem is that after restart, I cannot see the superuser app and of course I cannot perform root actions, such as creating a folder in / directory, or installing Google Apps.

How to overcome this? Any ideas appreciated.

Edit:
About tablet info

https://www.dropbox.com/s/de1kv0fhqpnlfm0/Screenshot_2014-01-12-20-50-38.png


问:
Append to txt (plain text)

Problem

I want to append to a txt-file from my android. Just like Drafts does would be nice, ie:

Open the app

Type

Hit a button

Choose what to do (this is where Drafts shine; I can choose to email somebody, append to a txt, google it, create an event in my calendar, etc)

Close the app

The point is: I want creation to be fast and not have to hit a lot of buttons.

Possible solutions

1) Dropsync

Storing a file on my SD-card, and having it synced with Dropsync is an alternative, but two problems would occur

I have to turn on dropsync to sync very often, which is hard when you own a Nexus 7 and not a phone since I don't have wifi everywhere

frequent syncing would lower battery levels a lot.

2) Evernote

Worst case, I could settle upon append to a note in evernote.

Title: Append to txt (plain text)


问:
how do I get my exchange email to notifiy me when my phone is in my holder? HTC DNA
I only get notification when I have my phone in opened (in my hand unlocked) from my Exchange (work). I need to get the phone to alert me when it is just setting there. Right now I have to open the phone and check, this does not work for after hours support. I have a HTC DNA. Any help would me nice, for me this is a job exposure. </p>


问:
Turn off power notification sound on LG G2
I've got an LG G2 (Verizon) and I'd like to turn off all the notification sounds for when I plug in my phone, when I unplug it, and when it gets to full power.

I've turned the system notification volume setting to zero, but I still hear these sounds.

What am I missing?


问:
How to get my WiFi notifications back into English?
For some reason my WiFi notifications have started appearing in I think Polish, or something with a similar alphabet, I don't even have any such languages installed as far as I can see.

This problem has survived through an update to 4.3 Jelly Bean.  Phone is Galaxy Note 2, (GT-N7100), on O2 UK.

The 3 messages that I get when turning WiFi on and off with my home network - which has an English name, are in the attached picture.

Messages on disconnecting and connecting WiFi (click for larger image)

Google Translate tells me that they are Polish for "Available connectivity package", "No access to Network" & "Available Wi-Fi connectivity".


问:
Sent text (SMS) messages sometimes show up under wrong contact's conversation
I'm on a Nexus One with Android 2.3.7 (CyanogenMod-7.2.0-passion), and recently I've noticed some sent messages go into the wrong contact's conversation: I send a message to person ABC, the person does receive it correctly, but when I check later the app shows it as sent to a different person XYZ. This really messes up the conversation and gets confusing quickly.

This has happened thrice so far, and there doesn't seem to be any pattern to it except both the contacts involved were people I had been messaging recently at those times. Note that the correct contact does receive the message, it's only on the display of the Sent message that this bug happens.

I'm using Handcent app, but the same display issue occurs in the default Messaging app. In both cases, the message details that comes up after a long press on the message shows the correct number. But somehow, it is still shown under the wrong contact. I've also tried restarting the phone, doesn't help.

Edit: I checked them all, and there does seem to be a pattern here - in each case, if a message ("msg1") sent to A is wrongly displayed under B, it turns out that B was the person I sent the next SMS after "msg1". That is, I send "msg1" to A, then after some time (varies from a few hours to a few days) I send a different message ("msg2") to B, "msg1" and "msg2" both end up under contact B one after the other


问:
"New line" using Android voice input
My quetion is - how I can enter "new line" symbol using android voice input?
For example I tyr to create shopping list using Evernote and voice, but to create new item in list I must switch to keybord, and press enter. How to do that using only my voice?</p>

Title: "New line" using Android voice input


问:
Video won't record
Sprint LG Optimus G Android 4.1.2

Default camera app

Video has stopped recording.  When I hit record, all the settings icons disable for about 4 seconds, then it goes back to a Red highlighted button.  I feel like it coincided with Google+ introducing the Photos app.

Still photos work fine.  Plenty of space left on the device.

Title: Video won't record


问:
Why: My phone will not install downloded apps. Will not calculate Storge usage % (Audio, Apps, etc.)?
My phone wouldn't install an app the other day (jefitt) so I tried looking at the internal memory (% usage for Audio, etc.) and it wouldn't calculate it (just showed the calculating status for 4 or 5 minutes then that detail went away, replaced by just "Internal Storage).

I deleted a bunch of files and then tried again and JeFitt installed. Internal memory was low (about 200 MB of 8 GB free) so I thought maybe it was a bit constipated.

Now it's doing the same thing. Tried installing a couple of different apps with the above symptoms.

What I've tried:

Deleted files so that I have 1.2 GB free on internal memory, 2+ GB free on SD card.

Booted into Safe Mode with the same symptoms

Simple Restart and Soft Reset with same symptoms.

This is a Motorola Razr M (Micro) with Android 4.2


问:
MIUI How to disable badges on homescreen?
MIUI uses those red badge notifications just like iOS, but I really want to disable them. Specifically for the MIUI Market, which I don't use because it's in Chinese (I only speak English). I have turned off all notifications in the market settings, and taken away every permission from Market within the system settings, but still the badges come up about once a day.

Any ideas?


问:
How to check if a phone can be rooted? Can the Fujitsu Arrows 201F be rooted?
I want to have a phone that I can root.  Today, I'm trying to purchase one.  I want to know if my phone can be rooted in advance.  The selections of phones from my provider, Softbank, is limited and the phones are all outdated.  But I have a discount, so I want to get one of them.  The Arrows 201F is the phone with the best battery life, so I want to get that one.  But first, I want to know if it can be rooted?  Can it?  And if not, how do I check the other phones at Softbank to see if they can be rooted?</p>


问:
How to set the default search engine in Android to use SSL?
If I use the "widget" of my Android 4.1.1 (on my "samsung" i9220) then I can see that it isn't using SSL. How can I set it to use it??</p>


问:
How do I get a Samsung Galaxy Tab 3 Kids to preference the SD card?
My son's Samsung Galaxy Tab 3 Kids edition is running low on space after I added several applications.

I added a micro SD card (external card) to compensate for storage.  I confirmed I was capable of standard Read-Write-Delete tasks against files on the external card from within the standard files app.

Unfortunately, I discovered that the system is unable to move applications to the external card (the option is simply never offered!).  I'm also having problems setting various applications (camera, music, etc.) to preference storing their data to the external card rather than the internal card.

Android version 4.1.2, Model number SM-T2105.

How can I best leverage using the external SD card?


问:
Huawei Ascend P6, Moving maps to external sdcard
I bought an Huawei Ascend P6, which comes with 8GB internal phone storage. But only ~4GB are available for the "internal storage".

I installed my apps, which include Tomtom Europe and Copilot Europe, which respectively have maps of about 4 and 2 GB. Both of them only install the offline maps in the internal memory for this phone.

I am trying to find a way to install those maps into the external SD.

I tried, without success, the following solutions

trying to move the apps to SD card after installing the maps. The App gets moved, but the maps remain in the internal storage.

trying to create a symbolic link installing a terminal app and using the ln -s command. But it doesn't work since the /mnt/sdcard (internal memory) is VFAT.

I tried some apps to move applications to the external SD card, but no success yet. (tried Link2SD)

Any help would be appreciated.

I read that FolderMount App can solve the problem, but it only works for rooted device. But my device isn't rooted (so, if anyone does have a good tutorial on how to root this device, it would be appreciated). But if possible, I would avoid rooting.

I still have the last try in the arsenal, which is enabling the debug mode in the cell phone and trying to use the command pm set-install-location 2 via adb or a terminal emulator app. I didn't try this yet, since at the moment my phone is installing the firmware update.

Any help would be appreciated.


问:
Mounting debian img issues, on the Kindle Fire [linuxonandroid]
I've been stuck on this issue for about 2 months now.

Everytime I try too run LinuxOnAndroid I get the following error:

```<code>mount: mounting /dev/block/loop255 on /data/local/mnt: Invalid Argument.
</code>```

My /proc/filesystems show I support:

```<code>  ext2
  ext3
  ext4
</code>```

If I try too mount /dev/block/loop255 the with -t ext1 the error becomes

```<code>mount: mounting /dev/block/loop255 on /data/local/mnt: No such file or directory.
</code>```

My /proc/config.gz shows my rom DOES support loop devices.

And, I'm using a Kindle Fire first GEN.

I have no idea what's going on, if it helps it used too run untill I had too hard reboot the tablet once. I have filled a bug report with LoA but havn't been gotten back too for 2 months so far.


问:
Is there any Android email client that fully supports offline reading?
I'm using K-9 mail on my Nexus 10 tablet. It is a good client, but it does not fetch images in HTML messages for offline reading. It has a setting for fetch images, which I have set, but I'm not really sure what it does. Images in HTML messages are still not fetched. At the moment the message is displayed the images are loaded. If there is no Internet connection at that time, there are no images.

Is there any Android email client that can be configured to fetch images when fetching the messages?


问:
Redirect speaker output to microphone
I want to redirect speaker output of Android mobile to microphone, just like this person did it on Ubuntu https://askubuntu.com/questions/283687/redirect-speaker-output-to-microphone

How can I do it?

Title: Redirect speaker output to microphone


问:
Phone gets shutdown
I have an issue with my Android phone as i cannot run more than one application at a time. If i run it gets switched off unexpectedly. Sometimes even working with 1 application will make my phone get switched off. If it happens i have to wait for 10 minutes to get my phone back again normal. In between if i try to switch on my phone again it will get switch off.

This issue happens when my phone internal storage is full and i thought because of no disk space it happens. I even posted a question about the internal storage space issue.

Android phone system data is keep eating the space

But after that I went to recovery mode and repaired my phone and now its like a new phone. I thought all issues got over but after that i found this issue is still there and makes me annoyed everytime it gets shutdown'd by any app. But the interesting fact is this shutdown issue is not happening when the phone is in charge. I can run any number of apps when my phone in charge and it works great.

I have collected log using "Log Collector" app and attached the link below.

Android Log

Please check the log and help me know which app or settings is making these issues. And also please suggest any upgraded OS if required to reinstall OS in my phone.

My Phone Specification

Model: Intel Xolo X900

Android OS Version: Android 4.0.4 Ice Cream Sandwich

Manufacturer's site

Title: Phone gets shutdown


问:
Can I use an external touchscreen with the Nexus 4?
I've seen a few videos of folk connecting their Nexus to an external monitor with a SlimPort HDMI cable. Would a 10 or 7 inch touchscreen work the same way? Or would it need a different cable connection?

If this is possible I can extend my Nexus 4 to a tablet :)


问:
Android TOP command CPU usage
I'm running a simple command line audio processing program in a shell on my Nexus 10 (Android 4.4.2), and want it to consume 100% CPU while it runs. The reason being, if I know it used 100% CPU, I can compare the time it took to the length of the audio file, and work out the effective CPU load if my program were to run in real time. I have two questions:

When running TOP on Android, does the value in the CPU column refer to the percentage of one core, or both (my program is single threaded, very simple)?

When running my program, the CPU shown while it runs is 50%. Is it possible the system is limiting it?

Title: Android TOP command CPU usage


问:
Sound output in speakers even with bluetooth headset connected
I use a bluetooth headset (Motorola S305) with my Nexus 4 (Stock 4.4.2) but when my phone rings or I receive a notification the sound comes in both, speakers and headset, I want to set everything to the headset, is that possible?</p>


问:
Portable hotspot device IP reservation
How can you set IP reservations for devices that are connecting to the portable hotspot that is created by an android device?</p>

ContentLicense: CC BY-SA 4.0

Title: Portable hotspot device IP reservation


问:
NFC for PC using libnfc
Is it possible to use the phone's nfc hardware as a NFC reader for PC (installing some app or using netcat with some /dev/ file)?
My phone has pn544 chip, it seems it is available as /dev/pn544</p>

Title: NFC for PC using libnfc


问:
Phone turns off at random
I have a note 1 N7000, and each time the screen began flickering and after that it shut down. This got worse after flashing a cyanogenmod rom. By plugging in the charger the battery seemed empty, but wasn't. After a while the battery indicator used to show charged 70 % or more. Put the charger cable off and the situation repeated after a short time of usage.

Last night it started turning off at boot and wouldn't turn on unless on charge. I flashed a original JB rom since the problem doesn't happen when on recovery/download mode. but now it does it even when connected on charge.

How can I fix this?

Title: Phone turns off at random


问:
Samsung GALAXY Tab 10.1 sch-i905 stuck at the load screen
I have a Galaxy Tab 10.1, Model SCH-i905/U from us cellular (image1).

In order to root it, and after an internet search I flashed the device, corrupting files left and right. That's when it can't even start up anymore. It is stuck at the load screen Samsung GALAXY Tab 10.1 (image2).

 [4

Click images for larger variants if needed :)

I have tried about every method on different forums and I am unable to find the factory firmware for this specific model or get it back to stock.

I can get to downloading mode and use Odin. The only file that this software show “PASS” on green is PDA_SIGNED_P7105.tar.md5. Before, it was just stuck at the boot screen with yellow triangle.

I followed the method with PDA_HC31_EG01Ba_AP352081user_CP1033580_LTE20110704_0708.tar but that was failed. Then it won't boot up and stays in infinite boot-looping on "Samsung" logo. I can't get to  fast-boot. recovery give me error message in image below:

photos (click images for larger variants)

Update: I've already checked with Where can I find stock or custom ROMs for my Android device? Unfortunately, I still couldn't find a fitting ROM. All hints are welcome!


问:
Waking up with Galaxy Gear
I bought GG partly to wake up in the morning (Like with a Fitbit), but so far I have either woken others or I have not woken up.

IS there a good hybrid solutions, like some "Phoene only apps".

I would like an increasing "disturbance", like first only wibrating gear.  Later attamps should start with the same, but move to more effects, from both Gear and Phone.

Also important is that one of the devices go off if the other is out of battery (or in a mode where it doesn't do anything)

Title: Waking up with Galaxy Gear


问:
Samsung - Change password / log-in method with NFC
I had some NFC tags with my Xperia Sola. It could change settings if I touched the tags with the phone, and it was pretty useful.

Can one use this "technology" with modern Samsung phones?

Both removing/setting the password (with two tags), or just unlocking the screen (one tag) would be awesome.

The first would be better, of course. As I could just get home, touch the tag, and then I can use my phone real easy. When I head out or just leave the house, I can touch the password tag and get it locked like I use it on the street.

Changing the password/lock settings by hand each time is a real hassle.


问:
Using two tablets simultaneously as a dual-screen
I have had a Nexus 7 (2012 version) for quite some time now. Recently I saw an offer for a really cheap refurbished Nexus 7. Since I've been really happy with my tablet, I decided to order an additional one.

Not really having a plan in mind, I'm now looking for cool projects to use my second Nexus 7 for. So my question:

Are there possibilities to use both tablets simultaneously in a dual screen setup, sort of like extending one screen onto the other, for some real multitasking? I know I can just open a browser on one, and edit text on the second, but then there is no interaction between them, like sharing the clipboard or dragging files to one another.

I have been searching, but all I could find was extending screens between some PC OS and a tablet/phone, but not between tablets themselves.


问:
"can't read /etc/fstab: No such file or directory" when mounting system?
I am running CyanogenMod 7.2, and when I type mount system in Terminal Emulator, it gives me

```<code>mount: can't read '/etc/fstab': No such file or directory
</code>```

What's wrong? It obviously can mount the /system partition because the device boots fine, but yet I am getting this message.


问:
Change the way artists are displayed in Play Music?
I just got a Nexus 5 running Kit Kat. The music app (Play Music) is beautiful, but not the most effiient in terms of browsing. Right now, in the "artists" view it displays a captioned picture of each artist. I'd like it to display a simple list of artist names. Is there a way to do this?</p>


问:
How do I update my ROM to the CyanogenMOD M series releases using the internal updater?
All versions of CyanogenMOD released it the last couple years have an internal over-the-air style ROM update mechanism found under Settings > About Phone > CyanogenMOD updates. Using the Update types setting you can select whether you want to see only stable updates or nightly builds.

However, these two release lines are not the only options one might want to install. Notably absent is the ability to select the M series of releases. Technically these are basically milestone tags in the nightly line, but using them is recommended over nightlies for some users.

The M series builds do show up in the updater under the nightly list when they are first built, however that list seems to only show the latest three available builds. How can I select the most recent M build for installation after three or more nightlies have been built after the M build is released?

For example, CM 11 M2 was released earlier this month, but I was traveling and now over a week has passed and the updater on my devices only show the nightlies from the past couple days. Please note that I know how to download the files for my device and flash them manually, but I would like to use the built in tool.


问:
SIM Card not detected after encrypting device
I have a Samsung Galaxy Pocket Neo (Model GT-S5310B) running Android 4.1.2

The device is not rooted and the update notifier tells me I have the latest available version installed.

Today I tried encrypting the device (I did a full encryption). The encryption went smoothly and with no problems, but during boot up I noticed that the device only asked for the decryption password to continue.

My SIM card is password protected, and every time I restart or power up the device it first asks me the sim card password and THEN asks me the device password.

At first I thought that, as my device is now encrypted, the prompt for the sim card would come later. But as I logged in, I noticed the notification icon telling me that there was no sim card pluged in, and indeed, any option related to telephone would yield the same notification "Please insert a SIM card".

So I decrypted my device and thankfully,  everything is back to normal.

My question is: Why does the device encryption make it not detect my SIM card?

I might also add that I maintained encryption on my removable memory, it doesn't seem to affect the SIM detection, only the encryption of main memory affects the SIM card detection.


问:
Make device available in ADB (Windows 8)
A while back, I asked this question about the ADB. I now have another laptop running windows 8.1 and the problem is the same. Please look at the previous post for details.

Please help


问:
rooted china tablet black screen after boot need help megafeis m700
i have a Megafeis m700 tablet i rooted successfully but changed boot animation and now after it boots it goes to a black screen back lighting is still on. when giving command to reboot recovery i simply get the android whit his shell open but no menu just android on his back with red ! please someone help me I've been in front of this computer I've tried everything i can find.</p>


问:
Laggy dialer app
I have an Xperia P with latest update (Build No. 6.2.A.1.100, Android 4.1.2). It's phone app becomes horribly slow as the size of call log increases. Also, whenever there's an incoming call, it usually takes around 4 to 5 secs to respond after the call is accepted. There is a great time lag during dialing too. I tried clearing app data from settings but of no use!
The problem goes away when I clear the call log. Also, the scroll lag disappears while operating in landscape mode.

Does anyone know of any workaround for this? Currently, I'm using Ex-Dialer (the best dialer app I've ever seen from performance perspective) as a replacement for stock dialer (I'm not rooted and stock dialer is still installed in my phone) but I really don't want to use it or any third party app. One of the reason is that the Ex-Dialer contact list doesn't show Facebook thumbnail images for contacts.

Please help!

Title: Laggy dialer app


问:
Google Play Language Setting
I am currently using Samsung Galaxy S2. Recently I found that there are a lot of different language application in the Google play store. I can understand both English and Chinese but It seem like I am getting application of different languages. For example, in the bottom list in google play lifestyle top new free app, it show me application of languages that i don't even know how to read it.

Is there a language setting where i can display app that shows only English?

Title: Google Play Language Setting


问:
avoid Bluetooth DUN authorisation with paired devices
I have two Android phones - one has 4.0.1 ICS and other has 4.1 jelly bean.
I have enabled Bluetooth tethering on ICS .
I have also paired both the devices via Bluetooth.
Now what I want is that when I connect jelly bean phone to ICS for network access(via DUN) ,the ICS phone should allow it without asking user's permission again and again when I try to connect.
(this is similar feature seen in Nokia phones ,auto connection)
how do I do this ?</p>


问:
Is there any way to auto-reconnect with a specific PPTP connection on Android?
Every time my phone switches between networks (e.g. 4G to Wi-Fi) the established PPTP connection drops.

I know there is a feature called Always-on VPN, but that seems to only apply to L2TP or IPSec connections.  When I select that option it says "Select a VPN profile to always stay connected.  Network traffic will only be allowed when connected to this VPN."  However, the only option listed is "None", even though you can clearly see a PPTP config behind this window.

I am attempting to use proXPN service in particular but suspect this problem is generalized to PPTP sessions.  For what it's worth the phone is running Android 4.3 and has not been rooted.

Any suggestions or advice would be appreciated.


问:
Removed storage/emulated/0 file and lost access to all files
I was cleaning up my files using the PC and I accidentally removed storage/emulated/0 file completely.

I can no longer access images, music or files in general.

Is there anything I can do at this point?

Android 4.4.2, original, untouched.

The phone is a Nexus 5.

Using ES File Explorer going to storage/emulated/0 (the 0 here is a folder) shows me and Android folder. This is where my data was. The 0 I removed didn't look like a folder on Windows, it looked like a file with no extension.


问:
Galaxy S II Default Video and Music Player apk for CM 10.3.1
I recently installed CyanogenMod 10.3.1 on my Samsung Galaxy S II (i9100)
I lost my default music and video player. Can anyone provide me with working apks of the applications? Those were my favorite media players.</p>


问:
How to show local language fonts in Chrome?
How to show Gujarati language font in Chrome for Android? I cannot read any Gujarati site like divyabhaskar.com, etc.

By the way in Opera Mini for Android browser there is the ability to show bitmap fonts for complex scripts. After enabling this option in Opera Mini I can read Gujarati fonts very easily. I tested all browsers available for Android but only Opera Mini seems to work. I regularly use Chrome so I want this function in Chrome so I can read my local language news sites online.


问:
how do I type special characters in ConnectBot?
I use an Apple bluetooth keyboard with my android Nexus 5.

In ConnectBot I do not get the special chars when I use the Shift-key.

How can I type special chars like +_)(*&^ in the terminal?


问:
Is there a way for 3G to not disconnect when connecting to WiFi?
WiFi is unreliable, I wouldn't trust WiFi for SIP calls, I've disabled WiFi within CSipSimple.

Now every time I connect to WiFi, my SIP registration seems to go away, and I'm not receiving any calls at all.  It's also unclear what happens when you do receive a call, unlock the phone to pick it up, and then the phone connects to WiFi (which it presumably didn't do during the sleep in order to conserve the power).

Is there a way to make this work?


问:
USB tethering: Allow only wifi
I want to connect my computer to my wifi network. As it does not have a wifi module I use my phone (Nexus 4, Android 4.4.2) to tether its wifi connection via USB.

When my phone looses the connection to the wifi or I forget to turn it on when I come home my computer uses up my phones mobile data, which I obviously don't like.

So the question is: Is there a (native?) way to limit USB tethering to the wifi connection?

Title: USB tethering: Allow only wifi


问:
How can I find out all sensor my smartphone has?
Is there a way to analyse, which characteristics my smartphone is capable of?

I found an app Z-Device Test, that claims to be able to analyse these characteristics:

the GPS signal, camera, compass, accelerometer, microphone,
  speakers, WiFi signals, Bluetooth, GSM / UMTS, FM Radio, Display,
  Battery, CPU, Memory, Vibration, USB, Audio / Video , operating
  system, light sensor, proximity sensor, temperature sensor, flash
  sensor, NFC near field comunication, Barometer, the detection of Navstar

But that program abuses its system privilege to dump advertisements everywhere, so I don't want to test that one.

Is there a safe way to get the information?


问:
Android Beam - vCard Not Init'ing
When I try to send a contact from one nexus 5 to another, Android Beam fails (everything is enabled). Other things such as a pic, a Play App link, etc. work just fine.

When I pull the log, I can see vCard fails to init.  I'm not using any special apps. Just plain stock Android running 4.4.2. Any ideas what's causing this issue?

01-20 14:18:56.187 W/ContactsProvider(16573): Failed to init VCardComposer

01-20 14:18:56.187 E/ContactNfcHandler(30975): IOException creating vcard

Any thoughts?

Thanks,

Steve

Title: Android Beam - vCard Not Init'ing


问:
Receiving text messages multiple times
The problem is that I sometimes recieve bizarre text messages: two different kinds.

1st kind: I receive a text message multiple times after receiving it a first time.

2nd kind: I receive a duplicate of a text message days after the real one was received.

I have a Wiko Cink Slim Android device running 4.0.4.
It's a rather low power device (512 MB RAM, for example) but I get by fine with it.

I have tried a variety of SMS clients: stock, Hangouts, Textra, Hello... So far same problem.

I live in France and have a plan with a newer operator Free Mobile, which both piggybacks Orange's antennas and also has its own antennas. I have forced my phone onto Orange's antennas because I read online that sometimes the antenna switching could provoke problems like mine. So far no difference.

However, the problem occured especially when I turn on my Wifi or my Data connections. When I do this, many different applications run and it slows down the phone a lot. Then, I get multiple repeat text messages.
I am leaning towards this hypothesis...

Has anyone had a similar problem?

 Anyone have a solution?

Title: Receiving text messages multiple times


问:
Android HDMI-DVI Video Issues
I'm having some issues getting a video signal from my Droibox Ace. Just doing straight HDMI-to-HDMI at 1080p to my LG TV seems to work fine, but I have a Dell WFP2407 Monitor connected to the Droibox using a HDMI-DVI cable. The monitor only supports 1920x1200 resolution and I can't get the video to show up using any configuration.

I have tried various apps from the store to try and output the required resolution with no luck.

I've also tried moving through all of the options available on the "Display output mode" screen, although it's hard to tell if these options had been applied as I was trying to switch between composite & HDMI output in order to see what I was doing.

Does anyone have any ideas on how I can change the HDMI output resolution to one of the supported? Or is there some other issue at work here?

Title: Android HDMI-DVI Video Issues


问:
Lockscreen widget default to expanded on Android 4.3 or upcoming 4.4
Does anyone know if there is a configuration to allow the lockscreen widget to default to expanded view on Android 4.3 or higher?  I have a Note 3 and have not yet received the 4.4 update.

I prefer NOT to use a 3rd party app.  My preference is to use the stock email widget, but have it in expanded mode by default.


问:
Speech to text deletes my sentence
I am trying to use speak-to-type in QuickOffice, and when I try it at the beginning of item number 2 in a numbered list, it types the sentence and then deletes it again!

If I go up to the existing item number 1 and then try to add my sentence to it using speak-to-type, it works.

Is this a bug?

Title: Speech to text deletes my sentence


问:
Does GCM always work over cellular data, as APNS?
APNS always works over cellular data, even if you are connected to WiFi (because WiFi uses extra power, and thus iOS devices turn it off during sleep, without affecting APNS).

Is GCM (Google Cloud Messaging) capable of doing the same thing?


问:
What exactly happen when flashing new rom?
I searched for a while without any satisfactory answer. What exactly happen when you flash a new rom on an Android device?

What the new rom contains of the Android architecture here:

A rom (es: Cyanogen) developed for s2 can't be installed on any other device (es: note) only because of the screen resolution or there are other factors (es: drivers)?

Thanks a lot for the answers in advice :)


问:
Unfortunately, Music has stopped
So recently I've been developing an Mp3 Download app, which may have caused some problems. I've deleted my app, deleted all the content, deleted the 'Music' Apps Cache and Data, yet It still crashes whenever I click on "My Phone" (When selecting music). Or, when I click Folders, Playlist, etc.

Device Info:

HTC One X

Android Version: 4.1.1

HTC Sense Version: 4+

Software number: Android Revolution HD 20.1 by mike1986

HTC SDK API Level: 4.63

If there's anyone that could help me find a solution, I'd be very happy.

Thanks in advance!

Edit #1

Just did a cold-boot, and wiped the cache.
This had no effect.   :(

I will not do a Factory Reset, or format my whole phone there's too much that I can't lose. I've read the comments, and the links you've posted.. Unfortunately, none of those links helped me either.

Edit #2

Didn't bother trying to fix that, thought it'd just be the flu or something that a week could fix. Didn't care too much tho..

On the other hand, while developing my app, the phone got stuck and didn't do anything. I thought it was a bug in my app. After trying to run the app after some  'Fixes'  the Virtual Android device started to come up (since it didn't detect my phone). I tried to go to settings, to enable USB Debugging (since that's most likely to happen), and it didn't do anything. Phone froze. I shut it down and tried to power it up again. It went to  'HTC quietly brilliant' screen, and froze. I tried to reboot and it got stuck at the same screen.

I tried to power it off, and on one more time, when the Charging LED was no longer on, and the phone went 'Cold' so to speak.

I've tried multiple combinations of buttons, plugged in,not plugged in, with/without Simcard.. but no.

My HTC One X is dead. It's still plugged in,on the wall, but it's not charging, booting, nothing.

I am sad.

Have a nice evening!

Title: Unfortunately, Music has stopped


问:
Why is the size of my Google Play Magazines app 357MB when it's empty on my S3?
When I look under the size of this app under Application Manager I see that the size is 357MB under data except that I had one magazine on it which I deleted but it still says the app is 300+MB!  What is the cause because the app is not 357MB itself. I'm running out of space so I need to fix it.  Any explanations?

OS: 4.1
S3


问:
Where do those profile images come from?
I looked into the contacts of my Nexus 10 with Android 4.4.2 and noticed that some of my contacts have profile images. It looks like this:

http://chaos.stw-bonn.de/users/mu/uploads/2014-01-24/Screenshot_2014-01-24-17-49-27.png

However, I do not know this image, nor did I put it there myself. Where does that come from? I checked the settings and saw that my Google Account has full synchronisation enabled. Do those come from there?

I know that I deactivated some Google services but they kept coming back with Android updates, so I enabled them all again (why bother, if it does not work?). Did that activate synchronisation? I feel pretty angry since the tablet essentially leaked all my private data to Google now …


问:
How do I get more immediate word suggestions in Android 4.4 Kitkat?
On my previous phone with the Android 2 stock keyboard, when typing, above the soft keys there was a list of word suggestions as long as the screen allowed.

In Android 4.4, there seems to be a maximum of 2 or 3. I know that you can press and hold one of the two suggestions on either side to get a few more, but this does not help speedy typing, as you may view these in vain, type a few more characters, try again, etc.

Does anybody know if/how I can get more suggestions to display immediately on the bar above the keyboard as the older Android versions helpfully did?


问:
Touch screen not working after using the code" *#*#2663#*#*"
I have Samsung Galaxy Mini and I dialled *#*#2663#*#* to see the version of the touch screeen.

I pressed the update button, upon which got a message on screen

updating, do not switch or shut down something like that.

After a few minutes, it displayed version not found, perhaps. After that, touch screen is no longer working.


问:
how to change boot logo without using fastboot
I know how to change the boot logo(logo.bin) from fastboot, but the problem is how can I change the boot logo without using fastboot.

I can't go to fastboot mode because I think my device(ME-702) doesn't support fastboot (I tried adb reboot bootloader but no benefit).
My device has not any recovery too.

Is there any way to change the logo in adb mode?


问:
tried to edit framework-res.apk on kyocera rise stuck in bootloop
Earlier this month I got a Kyocera Rise.

I got it rooted the first minute I got it and decided I wanted to edit the framework-res.apk file. I extracted it, edited it, and trying to replace it, root explorer force closed. I was unable to open any application because I kept getting this (the application com.android.(so and so) isn't responding) error.

I stupidly restarted the phone, forgetting that I could have adb pushed my backup framework-res.apk file. This phone has a recovery system that doesn't allow flashing updates. The bootloader is locked and Kyocera has yet to release an update, therefore we have no idea how updates are flashed. Any help at all is very appreciated :)


问:
Phone unable to recover after app crashes
I am using a rooted S4 device for app development purpose. I have joined a new team and working on their Android app. I see a weird issue on my phone, that if my app crashes, after the ANR, the screen goes blank, back/menu/home buttons dont work at all. At best I can suspend/screen lock my phone - but even after unlock, the state of the phone doesn't change (sometimes it returns to a normal state after 1-2 minutes).

What worries me most i that this does not happen to the other members of the development team; nor does this happen if I crash any other app on my phone.

I am concerned more about is this a problem with my phone, my app, or rooting ? Logs are not showing anything unusual.


问:
Samsung Infuse - missing notifications after rooting
i have a Samsung Infuse 4G and have rooted it.  Everything is great except i've somehow lost notifications  in the icons for Messaging, Gmail and Yahoo Mail.  I may  have deleted BadgeProvider.apk.  Would that cause the missing notifications?  I used NoBloat and backed up   all the apps i removed but I can't seem to get BadgeProvider back on. Thanks anyone for suggestions.</p>


问:
Is there any way to tell my tablet to ignore pixel density?
The pixel density of my tablet is 166.66666... (infinite 6) ppi.

It has a pixel density much higher than my PC and should read perfectly, but reading is a pain because the pixels that are set by software are different to those in the hardware, so the letters are sometimes crisp, sometimes have a shadow on the left, sometimes on the right and sometimes they are split between two pixels.

I have seen there are apps to change the pixel density, but I doubt this would solve the problem because the pixel density is not an integer, and these apps will probably not accept 500/3 as the pixel density.

I have seen that 2X Client (a remote desktop app) can connect to my computer and (apparently) ignore the pixel density, displaying 1024x768 pixels of my remote desktop in 1024x768 pixels of the screen of my tablet, everything looks perfectly crisp in the tablet (as much as in the PC) because of this.

I would like all apps to work in the same way and to ignore pixel density, this would use the screen in the best possible way, everything would be crisp, etc. I don't mind if letters like "i" are only one pixel width, I'm used to that in my computer and that would be just perfect for the tablet.

PD: a test for your android device, look at this:

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

(or better, check the comment with this text, the smaller font helps to see the difference). They should all look the same. In your computer you will be able to see they are all one pixel width and they all look the same. On your android device you may notice small differences between them. If you use a program that ignores the pixel density settings (like I'm guessing 2X Client does) then they should all look equal and perfectly on your android device, except maybe quite small.

I personally don't care if they look small, I'd like that. That's the point of the question.


问:
Galaxy W bricked?
I tried to upgrade the android version of my Galaxy W but ended up bricking up my phone.

Recovery mode - not working

Download mode - working

USB - not working (PC doesn't recognise my phone)

Tried odin - doesn't detect the phone

Please help!!!

Title: Galaxy W bricked?


问:
Sharing a directory tree problem from windows to android es explorer
There are several child folders in parent folder on windows 8.

Times ago I shared some child folders and accessed them from android es explorer without problems. Then I removed all child folders shares and instead shared their parent folder.

During the parent folder sharing the window appeared listing some of the previous child shares and asking "some of the folders were previously shared. you can replace their current settings with the same setting you just applied to the folder you shared".

If I click change settings after processing for a while it ends up with "folder can not be shared". Despite the message it is shared but access to those children is forbidden, they are not visible.


问:
Recover a deleted file from phone memory without USB Mass Storage class?
I just deleted a picture file from the internal phone memory. I actually deleted the entire Pictures folder. But the app said that 1 file was deleted. Not more than that? I take it this means that the phone camera is using the SD card to store pictures I take. It was stored in /storage/emulated/0 on Galaxy S4 plus.

I'm not sure what picture that was. Is there a way I can recover it? I noticed there's no USB Mass Storage option in Galaxy S4 Plus. Can I still use a recovery software such as PhotoRec or Recuva to restore it?

Update: I only have a long list of local disk volumes (partitions) when I start Recuva. There's no way to select my phone – which is connected as an MTP device (Microsoft protocol for media players) – or any of its partitiions. I have the same problem in PhotoRec. It is however detected by the computer and I can browse its contents in Windows Explorer.


问:
What is best and quickest way to fire up a Android 4.4 emulator or virtual box?
I'm looking to test a few apk's, but was wondering is there a quick android emulator I can fire up easily. A virtual box would also be nice, but i don't think thats widely supported.</p>


问:
loosing data after automatic shutdown due to critical battery!
Recently I have been suffering from various battery issues ranging from fast battery drains to unexpected shutdowns at safe battery levels. But most striking is the fact that I lost all system data (like system app data, WiFi Access points, etc) after my most recent shutdown!
The strangest thing is that i have not lost any data of any non-system apps!

I guess my question would be:
Can a shutdown due to critical battery cause my to lose only system data? If yes, how did it happen and how can i prevent it?

The Shutdown:
The shutdown involves a short flickering of the screen (in a rare case it also made a soft high pitch sound with a very soft pop) followed by the screen going completely black! All happening within a fraction of a second right in the middle of an app without any warning or prompt making it less like a typical shutdown and more like a crash!

Also worth mentioning:

After the phone freezes sometimes, I force a restart and after powering up the battery would have dropped up to 30% (that makes a 30% battery drop in under 2 minutes!)

The frequency of these shutdowns increased after using a battery hogging app (EveryCircuit)

I have 2 Samsung Galaxy SII batteries which I occasionally exchange

I once kept my phone for charging at 3% but instead it discharged to 0% before the charge began to climb

(Edit) I have not overclocked or over-volted any hardware manually, but I have for a short amount of time under-volted the 200MHZ power state as an attempt to save battery (but I cant say whether the ROM itself has done any Over/Under-Clocking/Volting)

Things are starting to get hilarious with my phone! Any insight is appreciated!

Specs:

I have a rooted Samsung Galaxy SII (18 months old)

Running Kitkat ROM (CyanogenMod 11)

Similar symptoms addressed here


问:
Is there are way using GDrive or Photos resizing pictures before sync/upload?
I'm synchronising all my cam photos to my google drive.
I'm using the photo app on android to upload pictures. There is just one thing that I don't like: I have no option to resize these pictures before the upload. So I have some 2mb pictures and I would like to resize/optimize them before uploading. Cannot find any options, tried also the google drive app, but still the same problem.

I know there are apps to resize pictures, but it´s still annoying to resize every time manually before you sync. I thought there are some options to do that automatically? Funny because some days ago I tested the MS SkyDrive App for Android and there is an option to optimize the pictures. You cannot choose what size you want, but the app resizing all of your pictures that are there for upload pretty well. That´s awesome. Why no such an option for google drive? Any suggestions?

Thank you


问:
500 charge limit on wireless charger for Nexus 4 / 5 (QI)
I recently bought a QI compatible charger for my Nexus 5. On the box it states, that the "wireless charges up to 500 times".

I don't understand why the charger is only able to charge my phone 500 times.

What happens to the charger so that it does not work anymore? Can someone explain that?

Thanks for you help.

It is exactly this device:
QI charger from ravpower

Edit 2: Looking at the website of the maker, it seems that they sell a mobile power bank as well. Perhaps they use the same packaging for the mobile power bank wireless charger and the wireless charger without battery.

Edit 3: I found the packaging on the internet.

Picture of the box


问:
Why does my phone reset the wallpaper to this CyanogenMod default image?
```<code>Note II - CM11 Nightly - KitKat 4.4.2
</code>```

Every now and then, my phone will reset the wallpaper to this default one. It happens randomly and not even after a boot or any state changing event. It could be possible that an app crashes, and it resets the background, but that does not make much sense. If anyone can help me prevent from the wallpaper from changing, that would be fantastic.


问:
galaxy note 1 - snote - how to select and drag something i've drawn?
I'm using the galaxy note 1 running android 4.0.  I have S Note opened.  I drew a picture of a cat at the top left corner of canvas.  Now I want to drag my cat to the bottom right corner of the canvas.  How do I perform this select and drag?  I don't see any select tool.  Is it even possible?</p>


问:
OpenVPN on Android 4.4 not working
I'm running CyanogenMod 11 unofficial ROM and I can't seem to get VPN working.

I've tried different OpenVPN clients. All of them connect to the server, but there is no traffic; the connection just gets stuck. The VPN servers work fine on laptop and older android versions.

Has anybody experienced a similar issue and what would be a workaround?

P.S: I've also tried PPTP and L2TP connections. Same issue. Connect but won't work.

Title: OpenVPN on Android 4.4 not working


问:
Use keyboard emoticons from Jelly Bean at KitKat

How i can put at my KitKat Nexus4?

Thank you.


问:
Too many repeat notifications from Google Now
I do appreciate a lot when Google Now tells me when my team plays but the thing is.. every game shows me like 4 notification. I clear it and then it comes back again. I don't like most notifications, almost all of them are muted on my phone, even e-mail, but this is one that I actually like but I don't like getting so many of the same one. Is there any way of tweaking this? I'm on a Note 3 if that's of any importance</p>


问:
Galaxy Nexus sometimes loses home Wi-Fi network (Linksys E900)
I have Gnex stock 4.3, rooted. Sometimes it loses connection to home Wi-Fi, I take it and it has no Wi-Fi icon, and if I go to the settings it will say "Connecting..." and have one signal bar, it won't ever connect till I restart the router. I have Linksys E900 with WPA2, and "keep wifi during sleep - always" and "minimize wifi battery usage - on" in the phone. That never happened when I had AT&T u-verse router.</p>


问:
Android System Module Reads Zero Bytes
My Samsung Galaxy Tab 2 started wigging out on me. While I was desperately tapping a Retreat, I think I may have deleted or disabled something. Apps crash frequently since and the "Android System" module in Settings/Application Manager shows zero bytes in all categories - cache, data, app, total, etc.  However,  it is not turned off.
How to correct this?</p>

Title: Android System Module Reads Zero Bytes


问:
Change Margins on Kobo App
I've recently installed the Kobo App for Android on a Galaxy Mega running Android 4.2.2.

The default margin width is way too big for my liking. Is there are way to change the margin setting?

I can see options to change font and colour settings. Are there any additional config files that give more control over this app's display style?

Title: Change Margins on Kobo App


问:
What is the system APK that handles the calls in ICS?
I'm trying to figure out what system APK handles the calls in Android ICS? I've found that Messaging is the one for SMS, but what is for phone calls?

The reason I'm asking is because I'm adding them to Greenify. Since Greenify has a feature that wakes them up whenever there's an SMS or call, I want them hibernated when not in use since I don't text or call often.


问:
Android on Virtualbox - Internet connection isn't available to all apps
I've installed Android on Virtualbox. Everything works fine. As I started Android, I was able to insert my google username, browse the web, install application via PlayStore.

However, there are some applications I've installed that aren't able to use internet! They say that no internet connection is available.

I googled around, and I only found pages in which they solve the situation in which internet connection isn't available at all. But I did not find anything about my problem.

If other details are needed, please ask and I'll post them.

Cheers!