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
1answer
6k 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 ...
7
votes
1answer
967 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 ...
10
votes
1answer
6k 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 ...
8
votes
2answers
1k views

Recover Android system with TWRP Recovery

Note that I am running Mac OS X. I tried installing an unofficial version of Cyanogenmod I found on XDA Developers that supports kltemini (SM-G800F). However, I messed up somewhere in the ...
2
votes
1answer
18k views

On Android, what is a “blue screen”, and what should you do about it?

Some Android users complain about seeing a "blue screen", also known as a "blue screen of death" or "BSOD". They add that their device has become unresponsive. (Here is one example, including a ...
2
votes
2answers
2k views

How to troubleshoot overheating and high battery drain in an Android Device?

Device info: Model : Micromax Canvas Nitro A310 Android Version : 4.4.2 Kernel Version : 3.4.67 Device Status : Rooted, Philz touch recovery, Xposed Framework installed Issue: My(relative's) ...
1
vote
1answer
6k 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" ...
21
votes
6answers
236k 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 ...
2
votes
2answers
524 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 ...
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
12k 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
3answers
3k 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 connection....
1
vote
0answers
36 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 ...