Phone shuts down when taking a picture with flash enable [weird problem] - Galaxy S III Q&A, Help & Troubleshooting

Hello All!
I'm quite new to this forum and not sure if anyone else had this problem before, but I think it's worth a thread anyway. I always solved my android problems on my own, though I haven't got the slightest of clues of what's going on with my phone right now.
So the problem is what's the title of the thread. Whenever I take a picture with the camera with flash enabled, the phone shuts down or freezes. Not sure which, because the screen goes black immediately after taking the picture, and it will not come back by touching the screen or pushing the power button or pushing it for a long time to switch it on or restart it. The phone only comes back to life if I remove the battery and put it back.
Some testing I did so far:
- The flash is working on it's own, it doesn't cause any problem. I tried it with a flashlight app.
- the camera works well without flash enabled, no shut down/freeze there.
- tried 2 camera apps, Camera Zoom FX, and the stock camera app for Samsung S3. Both caused the shut down / freeze thing with flash enabled when I took the picture, and both worked well without flash enabled.
- The only modification I did recently is replacing the battery, which works pretty well without any issues or strange behaviour.
Some other info's that might be needed:
Model : GT-I9300
The phone is rooted.
Android version : 4.3 - Stock (no modification, not flashed, no cyanogenmod)
Any suggestions?

Hello and welcome on XDA,
I would like to know which battery you are using.
After that I would suggest you doing a factory reset.
Kind regards
Trafalgar Square

Camera drivers have probably borked.. It has happened to my old s3 a while ago.
Backup, reset, flash stock twice and go from there. It's the only real fix that i know of.
Beamed in by telepathy.

Related

[Q] Camera LED flash problem

Hi,
Recently I'm having a problem with the LED flash, whenever I try to use it either to take a photo or on the flashlight app, it makes a short flicker and then shuts down. In case I want to take a picture at night it is particularly annoying because the flash terminates before the picture is actually taken so everything comes out darkened.
I'm wondering if anyone else ever experienced this problem as well. I'm not sure this is a hardware problem like a busted flash, or maybe there some software bug making this happen.
Uri
uri.patish said:
Hi,
Recently I'm having a problem with the LED flash, whenever I try to use it either to take a photo or on the flashlight app, it makes a short flicker and then shuts down. In case I want to take a picture at night it is particularly annoying because the flash terminates before the picture is actually taken so everything comes out darkened.
I'm wondering if anyone else ever experienced this problem as well. I'm not sure this is a hardware problem like a busted flash, or maybe there some software bug making this happen.
Uri
Click to expand...
Click to collapse
I never had this issue.
Have you already tried to install the S2 Camera Update from Samsung Apps?
It tests if you need the firmware update for the S2 camera and installs it if needed.
Additionally you can test the flash "hardware" by using any of the flashlight apps from the Market. Just to check, if the LED works fine.
Good luck !
Thanks for the reply!
I will check Samsung camera app, though I think my firmware is up to date.
As for the torch app, I have tried using it and it shows the same kind of behavior.
The only thing that makes me think this is a software issue is that the ffash does turn on for fraction of a second.
Uri
i know, eh?
I am having the exact same problem.
the flash goes on for the metering, then flashes a few times quickly but never in sync with the shutter, it seems..
sometimes torch applications work but never for very long (if i turn it off, sometimes i can't turn it back on, i mean... rarely problems with it not staying on)
i've had a few pictures showing up with vertical bars (almost like multiple exposure times) when i've forced the flash on when it wasn't really needed.
Also being driven insane by this problem.
im having the same problem with my s3. Did you fix it?
any solutions?
mine is exactly the same. has anybody found the solution? would be glad to know. thanks

[Q] Galaxy S3 lockscreen hang and also unresponsive blackscreen

Hey guys,
I know there has been a couple of posts like this that I have found through searching but none have actually found a solution, so instead of resurrecting a old thread I thought I would start a new one.
Basically I am having some issues with my new pebble blue (yey) S3 . I have found that sometimes when the phone is sleeping when I press the power button to bring it out of sleep the lock screen begins to hang. This is followed by a number of different things, the screen either glitches for a bit and then begins to work or it stays locked and needs a battery pull. As well as this I've found that randomly either when charging or not and the phone is sleeping it simply becomes unresponsive, staying on a black screen and needing a battery pull to fix (this has only occured a few times, the hanging lock screen occurs quite often).
I have done some searching and found little in the way of a solution or what the problem is, however I have found that when the lock screen hangs -if it begins to work again after glitching out the 'WIFI connected to ****' appears at the bottom of the screen. Anyway if anyone has any ideas or also recieves this problem I would really appreciate some help as it's driving me crazy and I'm unsure if it is a common S3 bug or a faulty handset, in which case I have limited time to RMA.
Cheers in advance
Hmm, sounds like a faulty phone to me. Try taking it back to get it exchanged for onother one. S3 was built to fly not crawl.
You'll want to go through a process of elimination to figure out when might be causing it.
Something you can try and test with (one at a time)
-turn on airplane mode
-turn off live wallpaper
-shut down all running tasks
-change your lock screen security method
-limit the number of widgets running on all the screens
-reduce the number of active screens
Probably other things you can try to pull out of the equation, but thats a good start
After looking up dial-a-phones returns policy it would seem that I have 28 days to return if the handset is faulty, so this atleast gives me some breathing room to try out any suggestions for fixes. I will begin to eliminate each of the suggested items above however as the lock screen problem is intermittent it make take a day so actually see if it has had an effect, which is annoying at the least.
On another note a numberupted of people are stating high battery life on their devices however mine doesn't seem to be as good and I do have power saving on as well as nfc etc. turned off. This makes me believe my handset could have a fault, but tbf I haven't allowed for a discharge to 5% and the recharging to 100% which I heare allows for optimisation of the battery.
EDIT**** I have changed the lock screen previously and found it had no effect on the problem and I do not have a live wallpaper in use.
Phone Freezing after reboot and auto wifi signal found on.
Same here, been happening the last few days after I installed Avast. Also, turning off and on the auto on wifi seemed to replicate the problem.
The phone will boot to the lock screen and freeze a bit, and sometimes the news ticker freezes, and then after unlocked, I try to turn off wifi signal has been found on the notification dropdown and then tries to auto connect to wifi, the phone will freeze up if I dont turn it off in time.
Once the auto wifi connect is off and reboots, then the phone will keep glitching up until it catches up processing alot of processes it was trying to do for about 1/2 hr. Also, if phone freezes up for too long, like after trying too many time of unlocking the screen while freezing up, the phone gets stuck at the lock screen and the phone almost overheated, in an area right below the battery. I had to pull the battery out to cool it off.
It seems to be a glitch in the auto wifi, especially if alot of resources are being used. Once Avast was on my phone about 1.5GB RAM is being used sometimes and since has really slowed the phone down. Going uninstall alot of apps.
JCrinage said:
Hey guys,
I know there has been a couple of posts like this that I have found through searching but none have actually found a solution, so instead of resurrecting a old thread I thought I would start a new one.
Basically I am having some issues with my new pebble blue (yey) S3 . I have found that sometimes when the phone is sleeping when I press the power button to bring it out of sleep the lock screen begins to hang. This is followed by a number of different things, the screen either glitches for a bit and then begins to work or it stays locked and needs a battery pull. As well as this I've found that randomly either when charging or not and the phone is sleeping it simply becomes unresponsive, staying on a black screen and needing a battery pull to fix (this has only occured a few times, the hanging lock screen occurs quite often).
I have done some searching and found little in the way of a solution or what the problem is, however I have found that when the lock screen hangs -if it begins to work again after glitching out the 'WIFI connected to ****' appears at the bottom of the screen. Anyway if anyone has any ideas or also recieves this problem I would really appreciate some help as it's driving me crazy and I'm unsure if it is a common S3 bug or a faulty handset, in which case I have limited time to RMA.
Cheers in advance
Click to expand...
Click to collapse
Same problem.
No problem if Wifi is switched off prior to sleep.
No problem if Wifi connection is still available.
Problem to lockscreen if Wifi connection is broken (move away from connected router).
Any suggestion?
sassorock said:
Same problem.
No problem if Wifi is switched off prior to sleep.
No problem if Wifi connection is still available.
Problem to lockscreen if Wifi connection is broken (move away from connected router).
Any suggestion?
Click to expand...
Click to collapse
Exactly the same here. Driving me crazy. I did root the phone using the Samsung Galaxy S3 Toolkit. I don't know if the problem also exists on non rooted devices.
S3 black screen after unlocking
Has there anyone experience S3's screen went on black? I have pebble blue S3 - GT-I9300. Cases when unlocking, answering an incoming call or attempting to turn off an
alarm? Mine happens when after unlocking the screen then it goes black and screen becomes unresponsive. It happens intermittently and even after 3 times of
reprogramming. I am now going to have it replaced. I am having a lot of troubles -- it exits on its own when im reading or composing an SMS; files were deleted after
restarting the unit, and an app opens up even not touching the scree. This is expensive and I am paying a lot just to experience this king of inconvenience.
DavidNieuwpoort said:
Exactly the same here. Driving me crazy. I did root the phone using the Samsung Galaxy S3 Toolkit. I don't know if the problem also exists on non rooted devices.
Click to expand...
Click to collapse
I also rooted my S3 a few days ago (with the S3 toolkit), and have had lots of problems with unresponsive lockscreens (I use PIN, because of exchange connection). It takes a few seconds or maybe up to as long a minute before I'm able to punch in the PIN-numbers. Before this the screen lights up but does not respond to input.
But the WiFi-connection issue might be what is the triggering factor, because after a boot it wotks just fine for several hours, if I'm not moving out of my current WiFi zone. First I thought it was either Secure Settings or Tasker that made my device lock up in this matter, but now as they are both uninstalled, the problem still occurs.
Are you running some kind of custom rom, or just the latest stock ROM, but rooted?
Flodas said:
I also rooted my S3 a few days ago (with the S3 toolkit), and have had lots of problems with unresponsive lockscreens (I use PIN, because of exchange connection). It takes a few seconds or maybe up to as long a minute before I'm able to punch in the PIN-numbers. Before this the screen lights up but does not respond to input.
But the WiFi-connection issue might be what is the triggering factor, because after a boot it wotks just fine for several hours, if I'm not moving out of my current WiFi zone. First I thought it was either Secure Settings or Tasker that made my device lock up in this matter, but now as they are both uninstalled, the problem still occurs.
Are you running some kind of custom rom, or just the latest stock ROM, but rooted?
Click to expand...
Click to collapse
Just the latest stock ROM but rooted. I've found out that turning off the wifi power safe mode fixes the problem for me. To do this:
- In the dailer enter *#0011#
- Press the menu key
- Select wifi
- Press the on/off button.
The wifi power safe mode will however be turned on during boot. So rebooting will set it back on.
*#0011# seems does the trick. But is annoying had to do this every time after power off (change battery, change Sim, flying).... Anyway to keep the setting?
I am also on stock Rom and rooted. Interested to know any non-rooted phone got this problem?
BTW. I found a quick (at least quicker than pull the battery) way to get out of the forzen lock screen (sometimes forgot to do the 0011 trick): press the power button (screen will Dim instead of OFF), then hold the home button for few seconds, as soon as you see the "menu" and "back" button lit up, the lock is un-freeze...
A permanent solution is appreciated for such an advance phone....
sassorock said:
*#0011# seems does the trick. But is annoying had to do this every time after power off (change battery, change Sim, flying).... Anyway to keep the setting?
Click to expand...
Click to collapse
Not that I know of.
Problem solved. For me anyway. Hope works for all of you having the same trouble.
My trouble begin with recent upgrade to LH3. My S3 was rooted by S3 toolkit v2.0. CWM installed was v4 something.
I un-rooted the phone. Uninstalled S3 toolkit v2.0. Re-installed the S3 Toolkit v5.0. Rooted the phone again (CWM become v6....).
I do not know it was CWM version caused the trouble or not. But my S3 is ok now.
I got it on my non-rooted phone, any additional solutions/suggestions? or service?
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
JB 4.1.1 caused these WiFi issues on my phone
Jodatnia said:
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
Click to expand...
Click to collapse
Exact opposite for me...never had the problem then since loading stock JB 4.1.1 with root I get lockups or freezes whenever WiFi is turned off or I leave my router's range. As soon as I disconnect from WiFi the whole phone freezes.
The *#0010# also locks up the phone when I turn off the WiFi power saving feature.
None of this happened before JB...and I replaced my phone with week via warranty due to this and the new phone does the exact same thing as soon as I upgraded to JB with root.
Any ideas?
Black screen / random reboot solution
Hi All,
I've had the black screen / random reboot issue for a few days. The only way to restore functionality on black screen lockup was to remove the battery.
I tried changing to Chrome browser and stopping the stock browser as suggested in some threads but it kept crashing.
I searched everywhere and most threads suggest a dodgy motherboard.
For me the issue was related to either a single PDF download via the stock browser or the fact I had quite alot of saved PDF files on my phone (S3 Stock firmware I9300XXELLA)
After deleting all the files listed in Internet downloads (look for Downloads with a green arrow Icon in apps) my trusty S3 has returned to normal. No black screen lockups, no hanging, runs like a dream!
I appreciate this may not solve everyones black sceeen issues but I haven't found any other thread with this solution. Hope it works for you.
Thanks,
Giz.
giz_zard said:
Hi All,
I've had the black screen / random reboot issue for a few days. The only way to restore functionality on black screen lockup was to remove the battery.
I tried changing to Chrome browser and stopping the stock browser as suggested in some threads but it kept crashing.
I searched everywhere and most threads suggest a dodgy motherboard.
For me the issue was related to either a single PDF download via the stock browser or the fact I had quite alot of saved PDF files on my phone (S3 Stock firmware I9300XXELLA)
After deleting all the files listed in Internet downloads (look for Downloads with a green arrow Icon in apps) my trusty S3 has returned to normal. No black screen lockups, no hanging, runs like a dream!
I appreciate this may not solve everyones black sceeen issues but I haven't found any other thread with this solution. Hope it works for you.
Thanks,
Giz.
Click to expand...
Click to collapse
Thanks for the tip...
Was this happening on JB for you? You mention stock firmware (not familiar with I9300)...so I am guessing it was ICS.
For me the issues are with JB and I had no files at all in the Downloads folder after a certain point when I wiped / formatted the SDCard...so I do not think my lockups were related to PDFs. But I did (and still do) have a ton of music and a lot of movies on the External MicroSD Card....and quite a few custom notification and ringtone MP3s on the Internal SDCard. Next time I load JB I will run it a few days with none of this media loaded....
Jodatnia said:
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
Click to expand...
Click to collapse
For me this also worked. Resolved everything. (on i9300 int)
Boomer6345 said:
Thanks for the tip...
Was this happening on JB for you? You mention stock firmware (not familiar with I9300)...so I am guessing it was ICS.
For me the issues are with JB and I had no files at all in the Downloads folder after a certain point when I wiped / formatted the SDCard...so I do not think my lockups were related to PDFs. But I did (and still do) have a ton of music and a lot of movies on the External MicroSD Card....and quite a few custom notification and ringtone MP3s on the Internal SDCard. Next time I load JB I will run it a few days with none of this media loaded....
Click to expand...
Click to collapse
This is on JB 4.1.2, Phone had been updated to 4.1.2 for about a month. The issues started after a pdf download. Once all pdf's were deleted the handset works perfectly.
Giz

[Q] Android gets into a hotboot looping state for unknown reason

Hi.
My Galaxy S3 is frequently getting into hotboot looping state for no apparent reason. The only way to get it out of this state is to wipe the phone or restore a backup of the "data" folder only.
After that, it might work for a week, but it might not work for a day (not work = start to hotboot loop).
It happens when after the phone screen is locked, it doesn't wake up anymore. It doesn't answers to any calls (like if it's off) or notifications. Just dies.
Forcing a reboot (by holding the power button) or removing the battery ables me to reboot it, but enter in hotboot looping state. I can make it go thru the whole booting state and I see the homescreen (And that's weird because I'm supposed to see the lockscreen first). Some widgets animation works but the device doesn't answer to touch (two softbuttons vibrates when touched, they do vibrate but don't render anything on Android) and then hotboots. Keeps doing this forever. Booting into safemode USED to work, but it doesn't work anymore, I don't know why.
After wiping the device or restoring the Data backup, device turns on as expected (restoring data takes it back to working state exactly like it was before the backup, even the same lockscreen pattern). I've tried to leave a terminal running logcat to catch the error, but it doesn't write in realtime, so when the bug breaks out, the logfile is empty.
I even thought it could be the S3 memory issue with firmware, but I'm using the "fixed" kernels. Also, it is recoverable, and not permanently dead.
I suspect of some rogue app, but I have too many apps to just go through installing one by one (and waiting even weeks to install the other one). Is there any way I can get a postmortem logfile or make logcat write in realtime?
Thanks
GTMoraes said:
Hi.
My Galaxy S3 is frequently getting into hotboot looping state for no apparent reason. The only way to get it out of this state is to wipe the phone or restore a backup of the "data" folder only.
After that, it might work for a week, but it might not work for a day (not work = start to hotboot loop).
It happens when after the phone screen is locked, it doesn't wake up anymore. It doesn't answers to any calls (like if it's off) or notifications. Just dies.
Forcing a reboot (by holding the power button) or removing the battery ables me to reboot it, but enter in hotboot looping state. I can make it go thru the whole booting state and I see the homescreen (And that's weird because I'm supposed to see the lockscreen first). Some widgets animation works but the device doesn't answer to touch (two softbuttons vibrates when touched, they do vibrate but don't render anything on Android) and then hotboots. Keeps doing this forever. Booting into safemode USED to work, but it doesn't work anymore, I don't know why.
After wiping the device or restoring the Data backup, device turns on as expected (restoring data takes it back to working state exactly like it was before the backup, even the same lockscreen pattern). I've tried to leave a terminal running logcat to catch the error, but it doesn't write in realtime, so when the bug breaks out, the logfile is empty.
I even thought it could be the S3 memory issue with firmware, but I'm using the "fixed" kernels. Also, it is recoverable, and not permanently dead.
I suspect of some rogue app, but I have too many apps to just go through installing one by one (and waiting even weeks to install the other one). Is there any way I can get a postmortem logfile or make logcat write in realtime?
Thanks
Click to expand...
Click to collapse
Try flashing another ROM for S3 and doing a full wipe.
TenKoX said:
Try flashing another ROM for S3 and doing a full wipe.
Click to expand...
Click to collapse
Thanks for the reply.
I already did. It started to happen out of nowhere while I used the Android Revolution HD ROM, then after a few wipes and reinstalls with the same problem, I gave a shot to WanamLite ROM. Exactly same problem. Both are based on the original 4.1.2 Android.
I'm pretty sure it is being caused by some rogue app, because the only thing in common between those ROMs is that I "batch-install" all my apps back from Google Play.
So far, I'm suspecting about Vine (it's the last install that I remember since it started to have this issue) and I have already uninstalled it, but it might have been caused by some app update that broke hell to my phone.
If there were some kind of "black box" that I could retrieve after a crash, it could be the solution
GTMoraes said:
Thanks for the reply.
I already did. It started to happen out of nowhere while I used the Android Revolution HD ROM, then after a few wipes and reinstalls with the same problem, I gave a shot to WanamLite ROM. Exactly same problem. Both are based on the original 4.1.2 Android.
I'm pretty sure it is being caused by some rogue app, because the only thing in common between those ROMs is that I "batch-install" all my apps back from Google Play.
So far, I'm suspecting about Vine (it's the last install that I remember since it started to have this issue) and I have already uninstalled it, but it might have been caused by some app update that broke hell to my phone.
If there were some kind of "black box" that I could retrieve after a crash, it could be the solution
Click to expand...
Click to collapse
If you wipe data, your apps disappear, so I think this is not the problem.
Do another full wipe and DON'T restore your data. Just download again from Google Play and see if the problem appear again.
TenKoX said:
If you wipe data, your apps disappear, so I think this is not the problem.
Do another full wipe and DON'T restore your data. Just download again from Google Play and see if the problem appear again.
Click to expand...
Click to collapse
Thanks for the reply.
I started doing this the first time, but it still crashes it. And as I was wasting too much time with this, the backup option came as a option to not have to click to download over 200 apps one by one. Also, it once happened during a long holiday, and I was in a friend's ranch with no decent internet connection for downloading. All my apps were gone and I was stuck with a default phone for five days.
The backup is exactly the point where I finish downloading all the apps and they're installed. There are no cracked programs or adapted (e.g. Nexus camera). Every single app is obtainable from Play Store, so it's pretty fresh
Funny (actually sad) thing is that it's a system-wide error that a wipe solves it. If I don't wipe data and reinstall the same ROM (which under normal condition is no big deal), it doesn't get past from boot screen.
The worst is it happens instantly. It's working now, but then it crashes. Bam, gone. Few hours ago I was texting my gf and I left the phone for a while, waiting for her answer. After some time I knew something was off, picked up the phone and it was pretty warm (first signal), with the LED blinking some Facebook notification. Tried to wake up but it is in coma. I force a restart and it hotboot loops like I described on first post
It -only- happens when screen is locked. I disabled the screen lock for now to see if it's a workaround, but I'm not holding my breath
It could be a hardware malfunction if it can carry through all the roms you flashed and even when you tried a fresh install without your apps it still happened.
WildfireDEV said:
It could be a hardware malfunction if it can carry through all the roms you flashed and even when you tried a fresh install without your apps it still happened.
Click to expand...
Click to collapse
That's pretty much discarded. Wiping data instantly solves it. It did indeed run for 5 days with no external app without a single problem.
But also it ran over one week with external apps without a problem. I've executed some memory integrity tests and they all reported a-OK.
I'm kinda ruling out the "rogue-app" issue. I thought that recovering "data" from NAND backup was the /sdcard/android/data. But it's deeper than that. Now I don't even have a lead.
Phone already crashed today, without Vine and lockscreen, so that's not the problem. I really need to get some logs out of him. Just need to know how. Only if it could write a realtime log, so I could pull through ADB.
My last resort will be a fresh-fresh android installation, default S3 i9300 ROM, with only essential apps. Already have it triggered for the next crash.
If it goes rogue even this way, I'm running triangleaway and returning it (will be a profit too, the silver border is stripping).
This time around, I'm trying running it without a external sdcard (several files were being corrupted in it, don't know if it's due to force restart by removing battery, or some real issue on the card)
It's a problem within the Facebook social app or Youtube.
I've managed to run the phone flawlessly for weeks without signing in on Facebook, suspecting it might be it.
Today I logged in on Youtube app accidentally, and had to login on Facebook app to retrieve some info. Three hours later, phone went mad again.
I don't know which app caused it, but I think there's some relation to Facebook due to a greater ~involvement~ (couldn't find a proper word.. forgot it) with Android.
I've changed ROMs, launchers, system versions.. but not Kernel. I'll try another kernel and report on Boeffla main thread to see if there's some known bug

S3 acting weird

Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Axxell19 said:
Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Click to expand...
Click to collapse
did you tried to make a factory reset?
Axxell19 said:
Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Click to expand...
Click to collapse
It's a hardware problem, the power button is daamaged or stuck (thats why it turns itself on with battery). Also, pink lines on the camera are symptom of a bad contact, you should also get that camera checked.
Try and get it stable. Maybe open it and try to get the power button to stop resetting the device.
Next, triangle away, and flash a stock rom with odin (follow the guide on getting back to factory state with 0 flash counter). Remember that to avoid having the binary flash count at 1 you have to turn it off after triangle away finishes resetting the counter and before the phone boots android. Then flash a stock rom with odin.
Best of luck.
I did a factory reset right now and it seems to be better. The autoreset has stopped, I don`t know it it is because of the factory reset or the button is working fine for the moment, but at least I can flash a stock rom now.
Anyway, the camera issue and the sensitive button are still there.
L.E : I am now back to full stock and everything works fine, if the problems come back I will take it to warranty.
Thanks for your help !!

Ascend Mate 2 rear camera and flash not working

Model Number: MT2L03
Build: MT2-L03C00B322
Android version: 5.1
EMUI 3.1
Not rooted.
Not sure exactly what the issue is. I think it needs a new battery. Because when it gets down to 10% left it will randomly go down to 2% all of the sudden, then I will get that message saying "phone powering off" then the phone is difficult to ever get back on... which is why I try to never let the battery go completely dead.
Anyways the other night it went completely dead..... I charged it for forever it seemed, I noticed it was a little warmer than usual.
I ignored it and left it plugged in.
The next day I took it apart (I have taken it apart before, and put it back together with everything working fine)
Reason I've taken it apart in the past is because I had to replace the lcd screen because the other one got sat on and it shattered.
So I have an originally white phone with a black lcd screen....
Anyways I took the phone apart again, looked at the battery to make sure it wasn't bloated or warm anymore. It was fine.
I turned it back on and I noticed when I open the stock camera app it kept saying "can't connect to camera" or something similar.
So I took it apart again, unplugged the camera and plugged it back in, tried rebooting the phone, and when I opened camera again the phone then rebooted itself a few times.
Now instead of getting the message of "unable to connect to camera" it's as if the phone doesn't see the rear camera at all anymore.
The flash for the rear camera doesn't work anymore either.
I got it to turn on for a while, when it couldn't connect to the rear camera, but then it didn't want to turn off, then the phone rebooted itself, and now I can't get the rear camera or the flash to work.
The front camera works fine. But as for the rear camera there are no options to switch to it like there used to be.
On the top of the camera app there used to be a sort of "refresh" icon that would switch between the two cameras, that's gone though.
I also tried downloading apps that tell you about android hardware... and they say for secondary camera something like "not detected"
I made sure though.... the rear camera is plugged in all the way.
I even tried the backup and reset thing....
I don't know how to boot this model of phone into safe mode. I tried holding the power button, but I'm not sure if you hold the physical button, or long press the power icon on the screen???
I opened the camera app and went to settings and restored defaults.
I also tried opening app info for camera and clicking clear data. Neither helped.
How do I get android to see that there is a camera there?
Would downgrading the phone to the original build it was on help?
I think it was originally android 4.3.
Edit: So my main questions are... how do I boot into safe mode?
Would rooting it and clearing the dalvik cache work maybe? Isn't that what causes android to say "optimizing app X of X" when booting up?
How do I root this phone? After I root it would there be anything I can do to troubleshoot the rear camera or flash?
It just seems weird to me that one minute it says it can't connect, but the flash was working. Then the phone rebooted itself, and now it doesn't even seem to realize that there is a rear camera plugged in. And now the flash for camera isn't working either. Even did a backup and reset.

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