Screen flickering then boot loop - Galaxy S III Q&A, Help & Troubleshooting

Hi I have two Samsung S3s and I flashed both of them with blisspop a few weeks ago. One I bought 14 months ago off giffgaff the other is about 2 years old off virgin mobile.
Both phones appear to run well when connected to the mains charger but when I take them off charge after approx 30 mins of use, the screen backlight begins to flicker and then the phone goes to the Samsung SIII spalsh and begins to bootloop until I connect the charger at which point the phone boots and begins optimising apps. When the phone comes back on it shows low battery usually 4% even if the battery was 75% when it shutdown.
Does anyone have any suggestions or ideas what the problem could be? I have searched this forun and Google but can't find the exact problem. When I first noticed it, I did think it could be the battery on its way out but as its both phones I don't think so and they both charged and discharged fine before I flashed them. I have also tryed cm11 and cm12 and the problem is exactly the same in all roms for me.
Thanks Paul.

Maybe the battery connection is loose with the electrodes.

Related

no battery as soon as Android is fully loaded

Hi guys,
I’ve got a problem with my purchased Samsung Galaxy S2. I bought the phone already used (2 months) and the seller told me, that he had dropped it in the water. He told me, that it works, but the battery doesn’t really work.
And now the problem, the battery is fine but as soon as Android is fully loaded, it says that the battery is empty and the phone turns off approximately after 30 sec. It doesn’t matter if it’s connected to a computer or to the power supply. It always turns off.
I tried it with the battery of a friend of mine, but it was the same result.
I can start the CWM and flash whatever I want and it works fine, but as soon as Android starts the problem appears again. I tried original ROMs and Custom ROMs but it’s always the same problem.
Any ideas what the problem could be?

[Q] Stuck on Bootscreen from nowhere

So, my phone's got the standard stock rom, I rooted it, but never flashed it, it has always worked great and hasn't given me any trouble until last night.
I got back from a trip inside my country where it worked great. Then it started running low on battery and shut down.
I went to a friend's house and he had this black berry charger. I pluged it to my phone to charge it and when I tried to turn it on it went on to the "Samsung Galaxy S 2" black and white screen, and started looping on it.
The only "new" "rare" or out of the ordinary thing to it was I had plugged the phone to a blutooth ear piece I bought the day before.
Any ideas?
Has anyone had this same situation?
I looked in the forum, but it seems every loop problem comes out of flashing new roms.
Thanks in advance.
It's possible it could be a battery problem. There have been several threads of boot problems with a fully discharged battery. Sometimes the phone itself can not recharge the battery, and the fix is to use a fully charged other battery, or maybe to buy an external charger for the battery. Not sure if the blackberry charger would have caused a problem. As long as it's a micro usb charger I would think it would be ok.
I have never had a problem like this myself, just reporting some things I have read other people say.
It's likely the voltage is different enough to make the phone unhappy. Can you plug into a PC instead if you don't have access to a "real" charger? It will take forever to charge, but I'll bet it takes care of the boot issue...

[Q] Bad battery?

Hey, guys!
I've had my I9100 for almost 3 months now. Everything was working fine till last week. I was charging my phone, left it overnight and when I woke up in the morning, unplugged it and it didn't turn on. Thought the phone bricked by itself but when I connected a home-made jig I have it turned on but when it booted the battery was 0%.
Did some research around here and connected it to a 1A charger and left it charging (phone off) for an hour and that fixed the problem. But Two days ago, every time I use my phone and the battery discharges till 60%, the screen flickers a tiny bit and the phone turns off. When I try to turn the phone on, it gets to the booting animation and then it turns off. Sometimes it would boot and the battery indicator would show a charge of 13% or even 1%. It turns on and stays on if I connect it to the charger and let it charge but when I unplug it, it would do the same when it gets the 60%.
The only way I've made it go under 60% charge is if I wipe the batt stats when is charged and when I re-charge it, goes back to the 60% issue. I've been thinking about buying a new battery but I'm not sure if is the phone or the battery and came here to ask.
Will try to borrow a battery from a friend today and see if the problem persists.
Any help will be much appreciated.
Edit: I'm running Jellybam 7.2.0
Goto stock and use it for couple of days.
Sent from my GT-I9100 using xda app-developers app
Sagar Khanapurkar said:
Goto stock and use it for couple of days.
Sent from my GT-I9100 using xda app-developers app
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Click to collapse
I swapped batteries with a friend that also has a stock I9100 and my battery did the same to his phone. Guess is time to get a battery replacement.
Daneru said:
I swapped batteries with a friend that also has a stock I9100 and my battery did the same to his phone. Guess is time to get a battery replacement.
Click to expand...
Click to collapse
hi, i am actually facing the same problem as you. i got my i9100 for around 3 months now. 1 month ago i updated to stock jelly bean 4.1.2. it was only until last week when the battery issue surface. i had my phone charged to 100%. switched it off for the night. when i attempt to switch it on again in the day, the phone would not start up and reflects that its battery level is 0%. for subsequent days i have observed the following:
First the phone can never be fully charged. it will reflect that the charge is complete and request to remove the charging cable.
Secondly, i realized that when i removed cable, the notification to remove the cable did not disable.
Lastly, when i restart my phone, the battery level will drop to 70 - 80% range. Currently i am suspecting its a software issue. trying to install a updated stock rom now.
One more issue. whenever i switch off my phone, the giant battery logo will keep appearing in the middle of the black screen. i will not be able to switch on the phone unless i enters its recovery mode and select "reboot now manually". maybe you can verify if you have the same issue with your faulty battery? i am currently trying to troubleshoot the root of my battery problem.
any help is appreciated!
oklono said:
hi, i am actually facing the same problem as you. i got my i9100 for around 3 months now. 1 month ago i updated to stock jelly bean 4.1.2. it was only until last week when the battery issue surface. i had my phone charged to 100%. switched it off for the night. when i attempt to switch it on again in the day, the phone would not start up and reflects that its battery level is 0%. for subsequent days i have observed the following:
First the phone can never be fully charged. it will reflect that the charge is complete and request to remove the charging cable.
Secondly, i realized that when i removed cable, the notification to remove the cable did not disable.
Lastly, when i restart my phone, the battery level will drop to 70 - 80% range. Currently i am suspecting its a software issue. trying to install a updated stock rom now.
One more issue. whenever i switch off my phone, the giant battery logo will keep appearing in the middle of the black screen. i will not be able to switch on the phone unless i enters its recovery mode and select "reboot now manually". maybe you can verify if you have the same issue with your faulty battery? i am currently trying to troubleshoot the root of my battery problem.
any help is appreciated!
Click to expand...
Click to collapse
Your battery is probably damaged too, since everything was fine for almost 3 weeks, as you mentioned. If it was a software issue, I guess it would have caused problems since you updated the phone. I'd recommend you to check if your battery is swollen: take the battery off, put it on a flat surface and try to spin it. If it spins a lot, then it is swollen and you need a replacement.
Hope this helps

Random reboot and phone's death for some days

Hi everyone! I've a problem that's bothering me since i've bought this phone. Let's start from the first day when my beautiful gs2 arrived and there's no way it would turn on, i tried charge the battery but it didn't work too, it displayed the grey battery logo and then reboot in a loop. Then magically after some hours it started working. After a few months the phone started rebooting or powering off by itself and after a few more weeks it wouldn't turn on or charge like the first day and like that it returned to life after few days. I took it to a samsung point and they changed the usb connector.
It all worked fine for a few months and then here we were again and the phone died and turn to life after few days and also this time they changed the usb connector.
Now it's begun rebooting again and i think it won't turn on few weeks from now.
I've noticed that when the phone reboot there's a vertical drop in the battery charge, almost to zero, only to recharges by itself instantaneously after rebooting. Few days ago the phone didn't reboot but the battery charge went instantaneously from 60% to 10% and then started slowly charging by itself till almost 25%.
What do you think about it? I'm starting to think the problem is the battery chip that control the charge, is it possible? It's integrated in the battery right? so if i change it the gs2 would be ok?
i would personally try another battery.
if that doesnt work, it might be the u503 chip on the phone.
i recently had an issue with that chip after slight water damage (http://forum.xda-developers.com/showthread.php?t=2462207) and noticed the same issue with the battery level, and it not turning on sometimes. tried with 3 different batteries and had the same problem.
got rid of the u503 chip, and its working fine now.
The problem is i don't have another battery. I tried the battery of a friend and it came back to life but there's no way to tell if it did the trick because it's random. The other times one second it was dead and the next one it was working again even without changing anything.
In my case when the phone reboot it doesn't get hotter so i think it's different from yours. More over is still under warranty so it's better not to touch it yet

[Q] Overheating and not turning on !

I rooted my phone with Cyanogenmod 11 (nightly) two weeks ago, it was fine, no issues. On monday morning phone was fully charged, but with very little to no use it was completely discharged in 7 hours. When I connected phone to a charger (original and working) it didn't want to turn on, it did NOTHING, black screen. When I borrowed battery from my brother's S2 wich was charged almost fully, it booted KitKat but it showed that the battery has to be recharged. I put it back to brother's phone but it showed only approx. 15% less than before, it was okay. I tried charging my phone with brother's battery, but it was incredibly overheating , not like when you play games, I was afraid it was going to blow up. It is overheating even when phone is turned off and charging or even when normally turned on, on battery. I tried enabling airplane mode, I even installed stock ROM with Odin, but it is still overheating. It is not overheating near the camera but on the left side of the screen, I don't know what that chip is there for. Stock ROM now gives me error after 2 min. saying "Charging paused, battery temperature too high." Now my battery is discharged and phone is unable to charge it, only black screen again. Could this be done by rooting it with Cyanogenmod ? it was the only ROM that I installed through the step-by-step process on their site and for couple of days it worked fine. Is this a hardware issue that would occur even if I wouldn't root my phone, also is it somehow fixable, or would I need to change motherboard completely ? PLS HELP !
Yuki8san said:
or would I need to change motherboard completely ?
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That.

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