Common troubleshooting. You can use this tag when you cannot find a better fitting one. Please read the tag wiki for some first-aid.

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14
votes
6answers
147k views

Unable to connect Galaxy S3 to PC via USB

I've had my Galaxy S3 for a few months now, and have always been able to connect to my PC via USB. A few days ago, it suddenly stopped working. I've found many other Android.SE threads, but none have ...
10
votes
1answer
2k views

App <X> isn't working correctly. How can I fix it?

I have an application that isn't working correctly. Either it's not launching, or not responding to commands, or some of the functionality isn't doing what I expect. What are some simple steps I can ...
9
votes
1answer
5k views

How do I make Android consider my WiFi Access Point as valid (blue?)

We have a very large wifi network at Stack Exchange, and the primary guest network is tightly locked down. Our firewall rules permit essentially just http/https and vpn connections. When our ...
6
votes
6answers
6k views

WiFi Error: “Failed to connect to network”

Intermittently, when I try to connect to a WiFi network, I get the following error message as a toast message: Failed to connect to network The message pops up immediately upon attempting to ...
5
votes
1answer
566 views

What should I do before I try advanced troubleshooting

Are there any generic troubleshooting steps and tips to be followed before I search for problem specific troubleshooting options? Then what are they? I only have a general knowledge on Android and ...
3
votes
0answers
174 views

Double message notifications after upgrading Talk to Hangouts (CyanogenMod 7.2) [duplicate]

Phone: HTC Wildfire OS: CyanogenMod-7.2.0-buzz I recently upgraded Talk to Hangouts, and now each incoming message results in two notifications: one styled like the old Talk, and one from Hangouts. ...
3
votes
1answer
5k views

How to access Samsung Galaxy S2 storage while phone is off

My Galaxy S2 recently froze while browsing facebook using Firefox (the loading animation kept playing though), then shut down after a minute. I haven't been able to turn it back on since then. I tried ...
2
votes
2answers
104 views

What is trying to connect to the network?

When I'm not actively using the network, I usually turn off Wifi, Bluetooth, and Data. Since upgrading from Android 4.3 (stock) to 4.4 (OTA update from my carrier) I notice two things: Battery life ...
2
votes
1answer
106 views

How to pair a symbol CS3070 bluetooth scanner with a nexus 7 (2013) tablet

The pairing code asks me to type on the device which has no keys. Is there a work around?
2
votes
1answer
809 views

How can I determine what is causing my Nexus 4 to freeze?

I have a new-ish Nexus 4 with Cataclysm ROM installed (rooted, 4.3). The device has recently started freezing - being unresponsive to button presses, but with the white LED pulsing. I have to ...
2
votes
1answer
1k views

How to troubleshoot a lockup/freeze

I have a GNex running on CN(A) 3.8. It has started to lockup/freeze when the screen is off. So far it occurs mostly overnight while it's charging. I have to pull the battery to resolve. I believe it ...
2
votes
0answers
297 views

Music playback stops randomly

I have bought the Xperia ZQ (Xperia ZL's alias in Brazil) C6503. I am experiencing a very annoying problem: from time to time the audio playback in any audio app just stops. If I hit play again it ...
1
vote
1answer
22 views

Internal space near full but shouldn't be and not according to other stats

So yesterday i was seeing how many apps i have installed and i noticed this...according to which only 248 MB is free. Which looks wrong to me too. But that is not the case according to storage ...
1
vote
1answer
447 views

Do I need to root my phone to get a tcpdump?

I'm troubleshooting my aCal installation and the good folks at aCal asked me for the output from tcpdump -A -- do I need to root my phone and install busybox or can I do this from a terminal emulator? ...
1
vote
3answers
2k views

“Settings” hangs when scanning for WiFi since JB update on One X

I have an HTC One X which has never before exhibited any connection problems. Since the update to Jelly Bean around 2 weeks ago, it cannot reconnect to a WiFi network once it has lost the ...
1
vote
3answers
456 views

What exactly is Device Memory and is it possible to see it's contents?

I'm using Sony Xperia L (Non-Rooted, Stock OS) which shows me I have 1.52 GBs of Device Memory. "Apps and Media" are taking up 0.98 GB and ~240MB is remaining free. I don't understand where all that ...
1
vote
0answers
127 views

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 ...
1
vote
0answers
442 views

Galaxy S2 turns off randomly

I got a problem with my Samsung Galaxy S2 I9100. I have it for round about 8 monthts now and experimented with some custom roms. I installed cynogenmod 9, 10, 10.1 tested Syah Kernel and installed ...
1
vote
1answer
67 views

Phone added contact unfindable

My phone's contacts are synced with my Google and Facebook accounts. Whenever I add a contact through my phone it gets synced to my Google Account. Wonderful... Ok I usually send them a text message ...
0
votes
2answers
869 views

Htc one m7 International not recognized in adb mode

I have an htc one m7 running bootloader hboot 1.56. I unlocked the bootloader via htcdev.com The bootloader now shows Unlocked My phone is recognized in adb when the phone is turned on. But when i go ...
0
votes
1answer
962 views

4.4 Update (Sprint Galaxy S3) disabled pattern lock, can i reenable?

This morning I applied the 4.4 update on my Galaxy S3 (Sprint). I noticed that I can no longer use a pattern lock. The message: "Turned off by administrator, encryption policy or credential storage" ...
0
votes
1answer
252 views

I can't answer phone calls in some situations

I have a Motorola Citrus running android. I know this is a lame question, but I am a newbie to android and smart phones. Sometimes I will get a phone call I can't answer. The incoming call screen ...
0
votes
1answer
79 views

Wi-fi stopped working

The other day out of the blue my Wi-Fi stopped working. I've tried fixes I found here in stack exchange (see below), but nothing seems to work. How can I tell if it's a hardware problem or a software ...
0
votes
0answers
13 views

Galaxy XCover2 keeps shutting down(and occationally restarting) on standby

My Galaxy Xcover2 keeps shutting down when on standby and sometimes - though rarely - when in use. Before this started to happen my phone complained of some sort of filesystem corruption on the SD ...
0
votes
0answers
9 views

Phone app crashes during phone calls

On my Android phone the Phone app will crash when taking or placing calls is there some way to replace the phone.apk?
0
votes
1answer
26 views

Light of Back button is not working on my Android mobile

I have Android Fly F45 S. From yesterday I am suddenly seeing that my Android mobile back button light is not working. The back button is working but the light is not lighting. I have never dropped it ...
0
votes
0answers
56 views

Samsung Illusion SCH I110 device crashing random

I'm having problems with my samsung illusion SCH-i110. For the third or fourth time this week, my phone has randomly crashed without an attempted reboot. It happens at random but it always seems to ...
0
votes
2answers
45 views

Uninstalled system keyboard

I rooted my phone and uninstalled keyboard application without backup.. Now i removed my root. I need keyboard. My phone is galaxy star pro. Android version 4.1.2. Help me.
0
votes
1answer
422 views

ERROR : Unknown error when installing the application “-24” [duplicate]

Every time I try to download an app called icoron on my Galaxy note 3 an error message appears, Unknown error when installing the application "-24 Can anyone please help me?
0
votes
0answers
101 views

Run any user apps in safemode?

Some Background My Note 2 has strange slow down after hours of use. After hours of usage system_server and maybe kworker use a lot of CPU, mostly during apps open and switch, it lags badly. I also ...
0
votes
0answers
64 views

MMS messages text disappears

When I receive an MMS message (Android 4.1.2), I can see by the momentary preview that there is text to the message, but when I open it, I cannot find the text, only the image. Anybody have the ...
0
votes
0answers
41 views

Rooted Galaxy Nexus GSM silently fails to reflash/erase - Unable to wipe and its rebooting continiously

I have been struggling for a week. Searching all though the internet. My Galaxy Nexus has suddenly stopped working. It is continuously rebooting. Its rooted but has stock rom 4.3. My problem is, I ...
0
votes
0answers
170 views

WhatsApp registration stuck on the 'Initializing' page

I'd just installed the latest version of Whatsapp Version 2.11.234 but still stuck at initializing page.
0
votes
0answers
25 views

What does leaving your device off for a while do?

This page: What should I do before I try advanced troubleshooting says 3) Keep your device switched off for a while. Make sure you remove your SIM card (and the battery and SD card as well, if they ...
0
votes
0answers
125 views

Phone screen went black after getting wet and will not turn on

My phone got wet in the rain, and the screen went black and will not turn on. I left it alone for 2 hours but to no avail. Now I'm charging the phone and it still wont work, the phone just vibrates ...
0
votes
0answers
195 views

Phone storage not mounted , after using USB storage shows “Application not installed”

Earlier when I used to connect my phone (A jelly bean 4.2.2) to my computer (OS: Ubuntu 12.04) both my memory card and phone storage gets mounted automatically, but recently only my memory card gets ...
0
votes
0answers
266 views

Signal and Wi-Fi coverage loss on Samsung Galaxy S4

I have a Samsung Galaxy S4 (i9505), rooted with CyanogeMod 11. Recently, I moved to the stock Samsung ROM with the KitKat update, and I noticed a big loss on both signal and Wi-Fi coverage. How do ...
0
votes
0answers
20 views

My nexus S don't restart

My nexus S don't restart. A couple of hours ago the start button don't work. No battery charging display when the phone is plugged
0
votes
0answers
75 views

Why won't my Galaxy Note 3 stay in debug mode?

When I put my VZW Note 3 into debug mode using the dev options it'll connect to the PC and in 20-30 seconds immediately disconnect and reconnect as a media device and interrupt any processes I have ...
0
votes
0answers
77 views

I can't connect to server via PAW server app? Why not?

I have installed PAW server, and it says to open the provided IP address in a web browser and port number to configure the server (from device itself). I try it, and the page loads for a minute or so ...
0
votes
1answer
3k views

Omega ROM 4.4 bootloader/modem problems

Hi I was wondering if anyone else has had problems with this ROM update http://forum.xda-developers.com/showthread.php?t=2253528 I have followed the steps to flash the boot loader (completed ...
0
votes
0answers
16 views

my android tablet isnt tworking

I had a new tablet for Christmas and it worked properly. Today it just wasn't doing so well: I turned on the power and swiped my finger on the screen to unlock it. Then, When I touch an app it said ...
0
votes
0answers
97 views

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. ...
0
votes
0answers
70 views

Cracked screen 4 months ago, now Black screen

I have Samsung Galaxy S3. Fractured the screen 4 months ago, camera worked intermittently for about a month, then failed, but phone essentially worked, so I ignored it. Now I have dreaded BLACK ...
0
votes
0answers
82 views

Droid Razr Maxx stuck in odd Groundhog-Day-esque loop - will not hard reset

I've encountered an extremely annoying problem where my phone will constantly have applications force closing unexpectedly starting with Google+ and then the android core processes and then other ...
0
votes
0answers
145 views

How to troubleshoot missing sounds?

I have a strange problem with my Droid 4: sometimes it stops playing sounds (or music, or ringtones), and I can't figure out if there's something in particular that triggers this. The only fix I could ...
0
votes
0answers
110 views

How to speed up switching pages in a PDF?

How can you speed up flipping between pages in a PDF (currently using ezPDF on a Nexus 7)? What's the function that determines how fast a PDF can flip pages between? I thought it would be a function ...
0
votes
1answer
155 views

Was it my rooting that caused my Android to malfunction? Or what was it really?

I finally rooted my phone around a week ago, amidst all those battling feelings, and I used it for around 4 days. While the phone was charging through the USB port of my computer, I remember like ...
0
votes
0answers
138 views

“Save Image” doesn't work

Using Android 4.0.4 on the LG Optiomus P970 I cannot save images from browsers. When using the preinstalled browser (not Chrome on this device) tap-and-hold brings up a context menu including "save ...
0
votes
2answers
98 views

How do I begin to troubleshoot aCal?

I'm running aCal on my Samsung Galaxy S / Gingerbread and it isn't updating. Adding events pushes them out to my CalDAV server, but I don't see any events. In aLogcat I see an awful lot of errors: ...