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Questions tagged [troubleshooting]

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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22
votes
6answers
275k 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 ...
16
votes
1answer
8k 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 ...
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
1answer
3k 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 ...
8
votes
7answers
49k 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 ...
7
votes
1answer
1k 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 ...
5
votes
4answers
20k views

How to get why an app crashed?

I regularly obtain the infamously unhelpful "unfortunately crappyApp has stopped working". How to figure out what actually went wrong? I guess there's a stack trace somewhere, though ideally I'd like ...
4
votes
0answers
1k 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 ...
3
votes
1answer
67k 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 ...
3
votes
1answer
190 views

Battery level always 42%

I purchased a second hand nexus 5 to find out that the battery indicator is always showing 42% and never updates, regardless of the actual battery charge level. I tried replacing the battery with ...
3
votes
1answer
2k views

Babbel languages learning apps won't play sounds

The Babbel language learning app doesn't play sounds anymore; this used to work for me for a while but now doesn't. Sounds are the central feature of the app which makes it superior to the PC web ...
3
votes
1answer
2k 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 ...
3
votes
0answers
1k views

How to Diagnose WiFi Issues?

My Samsung Galaxy S4 (GT-I9515) with Android 5.0.1 does not connect to one particular WiFi any more - the Eduroam network at my workplace. The network is listed in the available networks list, with ...
3
votes
1answer
333 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 ...
3
votes
0answers
176 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
15k 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
1answer
5k views

Why external microphone doesnt work on some Androids (like LG G5)

I want to solve the problem with new Android phone (I use LG G5; and Motorola-Turbo2 too, but i dont care about it). I use two kinds of microhpones (4 pin) : =========== Wired ========= This mic ...
2
votes
2answers
872 views

How can I diagnose slowness in an Android device?

In Windows PC, when some computer is very slow, I use software like SysInternals Process Explorer to check background programs that is using more CPU/RAM. I use SysInternals AutoRuns to disable auto ...
2
votes
2answers
701 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
49 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 ...
2
votes
1answer
2k 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
2answers
3k 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) ...
2
votes
1answer
3k 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 long-...
2
votes
0answers
119 views

Lock-screen passwords sometimes fails

I have recently updated from Android 8.1 to 9. Since the update, there's a problem that keeps popping up every now and then. no matter how often I type the password, it does not get accepted. And I'...
2
votes
1answer
43 views

The songs I downloaded online do not show up with the same name in the player

I download music from various sites offering music for free (because I lack any sort of disposable income to legitimately download them). After changing their names into ones that make sense on my ...
2
votes
0answers
428 views

Cannot sync or remove Google accounts

I'm on Android 5.0.1. Yesterday, I received several "Unfortunately, Google Play services has stopped working" notifications, which I ignored as I assumed whatever had crashed would restart. But when ...
2
votes
1answer
3k views

Galaxy S5 G900V startup failure with inconsistent symptoms making troubleshooting difficult

o/ My Samsung Galaxy S5 suddenly and quickly started deteriorating a few days ago. I did also install a software update from Verizon about a week ago, but what's odd is how the symptoms worsened ...
2
votes
0answers
1k views

How to change the permission and ownership for internal sdcard

I have a problem with my internal SD card on my android 4.2.2. It shows there are no files on the internal SD card but there is a shortcut called "legacy" and I can't write anything on the internal SD ...
2
votes
0answers
11k 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 ...
2
votes
0answers
42 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 ...
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" ...
1
vote
1answer
2k 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
1answer
787 views

What to do when “Stop Supervision” does not stop supervision in Google Family Link

I was using the "Google Family Link" parental-control software to supervise a device. I wanted to stop supervising the device. So, in the Family Link parent app, I tapped "stop supervision". Google ...
1
vote
1answer
919 views

Google Keep Not Syncing Notes

Google keep has stopped syncing all of my notes all of a sudden. Notes created on Android phone are not available on the web version and vice versa. It was working all fine till yesterday. The Google ...
1
vote
1answer
2k views

wpa_supplicant.conf permission

So I'm facing this problem for a while now . What happens is that my phone reboots automatically sometimes and after the reboot I can't use my WiFi . The button is stuck at off: So after doing some ...
1
vote
1answer
73 views

Eight seconds after powering on, my phone goes dark and becomes unresponsive. What can I do?

I have a Samsung Galaxy S Relay. (This is kind of like a Samsung Galaxy S III plus a slide-out physical keyboard.) It's running stock Android 4.1.2, rooted using TWRP and SuperSU. I was using Spotify ...
1
vote
2answers
2k views

Two errors that refuse to be resolved, Google Play, Android 2.2.1

I have an old phone (LG Optimus V) running Android 2.2.1. I recently took it out and would like to download some apps on it. It automatically updated Android Market to Google Play by itself, but for ...
1
vote
1answer
290 views

Looping through Terms and Verify Google Account after hard reset

I have a recent Samsung Galaxy 6S Edge phone that had to be factory reset. After the factory reset it will loop through the 'Terms and Conditions' acceptance screen and the 'Verify Google Account' ...
1
vote
2answers
5k views

Reverse tethering isn't working completely

I connected my phone to my pc's ethernet connection via (USB cable) reverse tethering AndroidTool on my PC and USB tunnel on my android. Now, the problem is, it is going well with UC browser but isn't ...
1
vote
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
46 views

How to determine the cause behind various apps freezing, including system apps?

I understand if this is too broad a question, but on the off-chance there is at least a broad category of problems anyone could point me to... I've had a problem with the phone after asking a third ...
1
vote
0answers
44 views

How to test SD card for suspected fault, or validate correct performance, within Android?

I have a Samsung S7 running LineageOS 14.1 (=Nougat 7.1). Since purchase I've used it with a 60GB Samsung SD card. I know that fake SD cards are out there, so on this one I bought direct from Amazon ...
1
vote
0answers
50 views

Android Galaxy Media Player 3.6 is stuck on startup screen and keeps flashing

I don't know how to do android recovery on this device since the home button is a touch screen. It's stuck on the Samsung startup screen and keeps flashing the logo. It won't fully turn on even when ...
1
vote
0answers
52 views

Troubleshooting google maps history

Google maps history worked perfectly with my old phone. Now I have a new one and maps history worked for the first few days, then it started to behave randomly: when it works the data is correct, but ...
1
vote
2answers
233 views

Can't access filesystem from PC anymore

Starting a couple of weeks ago.. I can't access the file system from my PC on my Samsung tablet.. When connecting the tablet via USB to my PC I never get the dialog box where you choose whether or ...
1
vote
1answer
61 views

ALL Android Apps Randomly Crashing?

Recently my Galaxy Grand Prime has been acting weird. All of the apps, including settings, facebook, and youtube have been randmly crashing. I haven't done anything to it like rooting or factory ...
1
vote
0answers
297 views

Phone's power and volume buttons will not work in bootloader

I have recently decided to unlock the bootloader of my BLU Studio X8 HD. I have first installed the ADB drivers and afterwards I have used the command adb reboot bootloader to boot the device into the ...
1
vote
1answer
230 views

Google Play Store Hangs at Every Step

This week, the Google Play Store is behaving very strangely. It can download or update a single app but not both without being killed! There was an update for Chrome this morning, so I went to Google ...
1
vote
0answers
39 views

LG E980 mostly unresponsive, only intermittently displays a default background image

After the launcher seemingly bugged out on my old faithful LG E980 (5.1.1 Lollipop) yesterday my phone has been unresponsive and acting very strange. To begin with I hadn't dropped my phone or had ...
1
vote
1answer
875 views

Android system battery drain

My android phone has heavy abnormal battery drains coming from Android system. 2000mAh and above on a single charge! I know for certain this is a software issue and not hardware. Before I hit the ...