[Q] Overheating and not turning on ! - Galaxy S II Q&A, Help & Troubleshooting

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.

Related

[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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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.
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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!
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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] Is there something wrong with my battery?

So, I recently received my dad's old Galaxy S2. Stock JB, unrooted. My dad used to charge the phone in his car and during office time, whereas I've always been an "overnight" charger (keep this in mind as it's important). So, here's what happened -
1. I woke up really late the next day and realised that the alarm clock hadn't rung. checked out the phone beside me to see that it was really hot. The phone had shut down by itself. I turned it on and it functioned normally. That day I rooted the phone using PhilZ (mainly for the adfree app)
2. I didn't do an overnight charge for the next night cause my dad told me that "it ruins the battery". And the phone was fine the next morning. I changed to dorimanx's kernel for all the wonderful extra features.
3. That night, I decided to try overnight charging once again. Woke up the next day to a shock. It was 10am! No alarm, hot phone. I thought the phone had just shut down again, so i tried to switch it on. It showed the samsung boot screen and then the pretty "dorimanx" screen, but then.. stuck. the device wasn't starting, but recovery was working. I removed the battery, I wiped the cache, I installed another kernel (siyah)... nothing worked. FInally, I decided to try flashing a new rom. Downloaded SlimKat and flashed it through CWM. The device then booted up and has been working quite normally now. And I like SlimKat much more than stock! But that's not the point. The point is, I'm scared of charging overnight again.
None of my previous phones have faced this problem. I'm just a noob, but I have a theory. I noticed that the phone, once it reaches 100%, doesn't give any indication that it has stopped charging (like most phones do). The charging icon on the battery still shows. Does this mean that the phone is still trying to charge even after the full battery, which is causing the overheating and shutdown of the phone? I'm still confused regarding why it refused to boot up.
Is this a battery/device problem, or was this merely due to some fault in the stock rom?
You were actually stock in a boot loop (which has happened to me before(hated it). Be glad that it didntt freeze at the Samsung logo. Because then you couldn't get into the CWM.
I am not entirely sure what is wrong with your phones battery, because I have never had this problem myself, so I am sorry I can help you with that. Try going to settings/battery and see if you can turn sound on for the battery from there. :thumbup:
Sent from my SGH-T959V
Given the age of the battery it's likely to be the battery, so replace that first. Could also be the USB board, but cross that bridge when you come to it (try the easier option first).
Your old man is wrong about charging - constant charging/discharging like he did for however long is far more likely to reduce a battery's useful life than a simple use the phone during the day charge once overnight arrangement.

Screen flickering then boot loop

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.

Help with a (very) problematic XT910

Hello guys, so, a friend of mine gave me his old RAZR xt910 after some begging, he was going to throw it away. This phone came to me with a dead battery and a shattered screen. First, the phone wasn't turning on, but would turn on and stuck on bootlogo only - with the charger (ac). I managed to hard reset it and load Android throu BP TOOLS (vol up down + charger), after taking the battery away, Running on charger only, - this was a new "gold" 3030mah aftermarket battery that was put in there by my friend one year ago. I was pretty impressed since it turned on without battery, like, wtf!. I tried to install CyanogenMod but could get to safestrap since it was asking for a battery ((?) image when on charger). Recently he brought me the old original battery - the one he tried to swap for the new one. It was all good, I put it back in and booted with 99%, but it depleted quickly. The phone refuses to charge it, wherever it is on or off, ((? Image when it's off, again)… it says OVERHEATING when it's on and then enters a cool down phase in which I can only do emergency calls, nothing else. On cpu-z it shows battery as Overheat at 80c (doesn't show variation). It also shows Overheat when without battery so I'm guessing this is preventing charge, but the energy flows well through the phone. Cyanogens turn the phone immediately off after optimizing apps on first boot (I guess it's because the wrong temperature data). I'm afraid... should i spend 15 dollars to try the luck on a new battery?, is the temperature sensor installed on the battery or the phone? Anyone booting from CHARGER ONLY, NO BATTERY INSTALLED getting "Overheat" status on cpu-z temperature readings? I would like to fix this phone to keep it... I like collecting phones.
After the battery depleted I managed to recharge it alone on a.universal charger, manually. I can't say its a comfortable way to charge it, but still the only way. Unfortunately I threw the "new battery" away so I can't say if it would say "Overheat " too to determine if it's a phones problem. Big fault

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