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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77 views

“The certificate was not installed” error when installing a CA root certificate

I am developing an Android mobile application and want to test that the application behaves as expected. I am using the OWASP ZAP intercepting proxy for this purpose. The application communicates to ...
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0answers
51 views

Whatsapp only lets me delete the profile picture [Solved]

Recently, I wanted to change my profile picture on whatsapp for another one, but when I tried to do that, only the option to delete it appeared. This also happens when I want to change the background ...
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0answers
85 views

Unfortunately settings has stopped

I have a lg Optimus Exceed 2 (VS450PP). I have been using it for experimentation and had to do a factory reset. When booted back into Android, I received a settings f/c. I have tried to enter the ...
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0answers
35 views

Twitter app corruption (Play Store error -504)

I was browsing on twitter yesterday when my battery died. After charging my phone It crashed whenver it tried to launch. I tried to clear all the cache data and it still crashed, so I tried to ...
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1answer
43 views

Nexus 7 Google Logo Boot-Loop

My stock Nexus 7 was working fine until I turned it on. The lock screen was frozen. I then hard reset the device and turned it back on. On boot the tablet gets stuck on the Google logo and never ...
0
votes
1answer
29 views

Lenovo A6000 isn't turning on

I slept at around 3 am and woke up around 1 pm, and then when I checked my Lenovo A6000 it was not working. It showed me a blank screen. I pressed the power off multiple times and it keeps blinking ...
0
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1answer
41 views

How to get rid of these marks?

I'm 100 percent sure that it's possible because I managed to do it a few months ago, but now I do not know (don't remember) how to do it again. It looks like someone can help here. Thanks in advance....
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0answers
57 views

How to debug Android crashing?

My Android Samsung Galaxy Alpha keeps crashing with no obvious pattern. Also, it's not a common crash where the screen just goes dark, and the system reboots.. it actually goes into a shutdown ...
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0answers
23 views

hardware or software

In the last month my S6 restarts or freezes randomly. I tried clearing the system cache through recovery and also some apps cache. removed all unnecessary apps and reset configuration to the very ...
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0answers
216 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 ...
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0answers
73 views

Problems rooting lg risio/leon from laptop [closed]

I have H343 LG Risio/Leon that I was manually rooting with PC but I get stuck in CMD at UNLK : after typing code and pressing enter. At which point I get this message: C:\Users\Mole\Downloads\LG_Root\...
-5
votes
1answer
127 views

ZTE phone home screen blinks off and on

My phone screen has task manager and a clear all button at the bottom. When I try to push phone or an app, it keeps disappearing and comes back on. I can't use any apps and I can't talk or text ...
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0answers
69 views

Nexus 5 has awful Wi-Fi

Ever since I bought the phone a few days ago (I believe it's manufacturer refurbished), it has not been getting any decent speeds. I've already tried factory resetting it many times and fiddling ...
8
votes
2answers
773 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 ...
4
votes
1answer
127 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 ...
0
votes
0answers
63 views

Samsung Galaxy S2 phone keeps periodically detecting that charger is plugged in even when it's not

Samsung Galaxy S-2 phone keeps periodically detecting that the charger has been plugged in, apparently randomly I have noticed, however, that if I keep using the UI of the phone it doesn't happen, ...
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0answers
741 views

Using the Cerberus shell to input commands

I'd like to use the Cerberus shell to input commands like taps, swipes, and text. I know how to do it using the command line and ADB shell, but I don't have USB debugging enabled on my Nexus6, so I'm ...
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2answers
971 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
199 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' ...
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votes
1answer
2k views

How do i unbrick my lg sunshine

I had app hangovers restarting over and over again and could not open my settings on my phone app or any other application so I open the back of the phone and turned it off by pulling the battery out ...
1
vote
1answer
4k views

Asus Zenfone 6 doesn't see SIM cards, keeps booting itself. How to troubleshoot the issue?

I have a problem with Asus Zenfone 6 device, which worked well on stock firmware with minimal amount of additional installs for about a year. This is a dual SIM phone and it has both SIM card slots ...
3
votes
0answers
602 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 ...
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votes
1answer
1k 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 ...
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votes
2answers
1k 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
321 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 ...
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votes
1answer
63 views

Why does reinstalling an app sometimes work to fix problems?

It's not uncommon for people to recommend reinstalling an Android app if it isn't working properly. For example, see this post on this site. Why does this sometimes work? What is goes wrong with ...
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0answers
500 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 ...
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0answers
293 views

How to test wifi adapter?

My VPN keeps disconnecting and I'm wondering if it's a problem with the wireless adapter. Is there a way I can test? I'm using the Xperia Z2 and there's ways to test the built in hardware like the ...
2
votes
1answer
16k views

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

Some Android users complain about seeing a "blue screen", and that their device has become unresponsive. (Here is one example, including a photograph of the affected device. Here is another example.) ...
0
votes
1answer
210 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 ...
0
votes
1answer
368 views

How to troubleshoot wifi connection problem?

Like some other people, I am plagued by the issue with gray wifi bars with a tablet running 4.2.2. I tried all recommended solutions: disabling power saving, switching between AES/TKIP on the router, ...
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votes
3answers
3k 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 ...
0
votes
1answer
213 views

HTTPS sites no longer load on my Android after installing cert to truststore

I have a rooted Android 4.3 JellyBean. I was testing something and trying to install the certificate for Charles Proxy so I could sniff some SSL traffic. I was able to push the Charles certificate to /...
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0answers
249 views

How can I troubleshoot what is causing 'Android OS' to eat up lots of battery?

Are there steps I can take to rule things out eventually leading to a root cause? I am currently using the latest Dirty Unicorn ROM on a Nexus 5. For the same of argument, consider the case where ...
0
votes
1answer
324 views

How do I get my Android tablet on my network without getting stuck in a reboot loop?

I recently acquired an Android tablet PC (this thing: http://yourfirstsmartphone.com/android-tablet-pc/). I have not altered it at all from the factory fresh settings (in fact in attempt to solve the ...
2
votes
1answer
40 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 ...
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0answers
114 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
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1answer
406 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 ...
-1
votes
1answer
422 views

no matter what i do my tablet has 0mb space available [duplicate]

Even after a factory reset when I go to settings>storage my tablet has about 120 MBS of space taken up between apps, audio, cached, and misc. But 0 available, can't download anything because of it, ...
0
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2answers
310 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
2k 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?
1
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0answers
5k 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 ...
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
votes
1answer
172 views

Unable to boot phone after deleting folders in SD storage

Am using a Samsung galaxy duos. I recently deleted everything from my sd card/usb storage and when I restarted my phone, it just keeps displaying the Samsung start screen but it doesn't boot up. ...
1
vote
0answers
379 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 ...
2
votes
1answer
221 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 ...
2
votes
2answers
516 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 ...
0
votes
2answers
3k 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
4k 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 ...
2
votes
1answer
1k 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?