[Q] Phone keeps shutting itself off, what to do? - Galaxy S II Q&A, Help & Troubleshooting

Hello everyone,
for a month now my Samsung galaxy S2 has been randomly shutting itself off. It always happens with the same pattern:
The signal suddenly drops to non-exsitent, then nothing reacts and finally everything goes black.​I can maximally use my phone for about 5min but it stays alive for the whole day if I don't touch it.
Also when I switch it on again after it shut itself off a lot of battery life is lost, e.g I have full battery -> it shuts itself off -> I only have 50%.
Do you have any ideas about what I could do?
I thought it might have been a problem with ICS and therefore updated to Jelly Bean but the problem persisted...
Thanks for your help!

Sounds like a power problem. Have you tried a new battery? Could be hardware as you have ruled out software.

I had a similar (not exactly the same) problem on a friends s2. It was on full stock, never been 'messed with'.
To fix that, I flashed NeatROM & a new modem. Now it gets a lot better signal, and doesn't freeze up. It may be a long shot but possibly worth a go.
First though, do what Andrew says :good:
Sent from a galaxy far, far away

I'm currently having very similar issues......I take the phone off charge at 100%, do a little web browsing or make a call / send a text......and then the phone freezes and becomes totally unresponsive....then finally shuts off.
I reboot the phone and the battery percentage shows anything from 2% to 50% remaining. It's NOT the software.....I've changed from stock to cm10 to cm10.1 and reflashed various nandroids without making a difference......
The ONLY thing that stops it happening is to swap out the stock battery for my spare (high capacity 2000mAh) battery....so for me, it's definitely battery related.....
I'm expecting a new one in the post any day now......
Sent from my GT-I9100 using xda app-developers app

Doesn't sound like much fun Keith. Let us know how you go when it comes. It's sounding like a completely different problem to the one I fixed, although it had similar symptoms.
Sent from a galaxy far, far away

No....not much fun.....but I had this issue with my galaxy W too....so I'm kinda used to it....lol
With the W, I'd get to the stage where the phone would (just about) fully boot.....and then shut down....
Just had a look at the S2s battery and it seems to be swelling which is ANOTHER indication of a borked battery.......
Sent from my GT-I9100 using xda app-developers app

Hope so for your sake! Replacing the battery is a heck of a lot easier than finding a magic fix for a SOD which seems to randomly occur.
A couple weeks back or so there was a guy who's battery connection was sketchy between the battery and contacts, is your connection ok?
Sent from a galaxy far, far away

replace the batery fixed this problem for me

Hopper8 said:
Hope so for your sake! Replacing the battery is a heck of a lot easier than finding a magic fix for a SOD which seems to randomly occur.
A couple weeks back or so there was a guy who's battery connection was sketchy between the battery and contacts, is your connection ok?
Sent from a galaxy far, far away
Click to expand...
Click to collapse
Yeah...battery contacts are good....new battery arrived about an hour ago...it's being charged up (external charger) and then I'll see if the problems have gone......
Sent from my GT-I9100 using xda app-developers app

Morning Keith. If you swapped out std batt for big boy battery and problem was sorted its gonna be the battery. :thumbup: @ op glad you sorted it

OP here. Swapping the battery did it for me!
(I didn't even notice that my old battery was swollen )
Thanks a lot!

chibi03 said:
OP here. Swapping the battery did it for me!
(I didn't even notice that my old battery was swollen )
Thanks a lot!
Click to expand...
Click to collapse
Same problem here, waiting for the new battery to arrive so I can change and test...:fingers-crossed:

Related

Battery Life is terrible (atypical please read)

I got this phone Friday.
I didn't root it Saturday but it was in the back of my head. Before I rooted it, I noticed that the battery life was the worst I had ever seen. I read online that this is a bug in 2.3.6 (good job samsung).
It charged while I was watching some TV, so I rooted it and installed UnNamed. This knocked me down to about 50%. I finished off the battery playing games. Then charged it back to 100%. When it was roughly 58% it froze so I had to pull the battery. When I turned it back on, and the battery was magically at 29%. Which seemed odd to me, is it just inaccurate or how does that work?
The hell is wrong with this phone? Nothing gets to me more than bad battery life. If I can't get this resolved, i'll have to bring it back to AT&T and swap it out for something else.
no advice for you, but mine is going on ebay when the htc ics phone comes. I haven't tried them yet. oh, I'm importing all phones from now on, too.
I noticed the same thing with my samsung get the galaxy nexus has a great battery...
Sent from my Galaxy Nexus using xda premium
Most more than likely it's the wiring leading up to RAM processor, and, consequently, the flux capacitor, which is probably where your problem is. The flux capacitor is what regulates the battery input/output which can sometimes lead to poor battery life, disappearing battery percentages, and in certain cases where your last name is McFly - time travel.
Sent from my SAMSUNG-SGH-I777 using xda premium
You know what?
**** this phone, unrooting it, and bringing it back.
Im done.
I had the same problem returned and got a new one problem solved
Sent from my SAMSUNG-SGH-I777 using Tapatalk
I'm sorry you aren't enjoying your phone. I had some great app suggestions, but this sounds like hardware failure...
JeremyLeroy96 said:
You know what?
**** this phone, unrooting it, and bringing it back.
Im done.
Click to expand...
Click to collapse
No sympathy here dude its a side effect of our fuel gauge
Sent from my Inspire 4G using XDA App
JeremyLeroy96 said:
I got this phone Friday.
I didn't root it Saturday but it was in the back of my head. Before I rooted it, I noticed that the battery life was the worst I had ever seen. I read online that this is a bug in 2.3.6 (good job samsung).
It charged while I was watching some TV, so I rooted it and installed UnNamed. This knocked me down to about 50%. I finished off the battery playing games. Then charged it back to 100%. When it was roughly 58% it froze so I had to pull the battery. When I turned it back on, and the battery was magically at 29%. Which seemed odd to me, is it just inaccurate or how does that work?
The hell is wrong with this phone? Nothing gets to me more than bad battery life. If I can't get this resolved, i'll have to bring it back to AT&T and swap it out for something else.
Click to expand...
Click to collapse
Search is your friend, this is a well documented situation. In short it's how li tech batteries work in combination with how our fuel gauge works. (it goes off of voltage vs counting mah, and there's voltage sag under high current draw, this equates to it showing lower than it is on reboots at low power)
Battery percentage artificially reports low when the device is rebooted on low battery. This is widely documented on these forums.
If you're returning the phone because of this one small minor glitch, good riddens.
Also, Unnamed 2.x is not immune to the BT-AMP bug that kills battery on UCKK6, since it's based off of UCKK6. This is why many reverted to Unnamed 1.x
And why did you post a new thread on this? There's a dedicated thread for UCKK6 battery issues.
You need to be patient dude. Use search and read through all the related posts in this forum. You can begin with flashing the rooted stock 2.3.4 with KH7.
Entropy512 said:
Battery percentage artificially reports low when the device is rebooted on low battery. This is widely documented on these forums.
If you're returning the phone because of this one small minor glitch, good riddens.
Also, Unnamed 2.x is not immune to the BT-AMP bug that kills battery on UCKK6, since it's based off of UCKK6. This is why many reverted to Unnamed 1.x
And why did you post a new thread on this? There's a dedicated thread for UCKK6 battery issues.
Click to expand...
Click to collapse
Idk... I was pretty upset last night because of it. It sounded like hardware, you're saying it isn't?
I was tired, posted at like midnight
Sorry for the trouble.
/thread
JeremyLeroy96 said:
Idk... I was pretty upset last night because of it. It sounded like hardware, you're saying it isn't?
I was tired, posted at like midnight
Sorry for the trouble.
/thread
Click to expand...
Click to collapse
It's a minor hardware glitch that happens only when you reboot your phone on low battery. Solution is:
1) Accept the weirdness of your battery rising after the glitch
2) Reboot when on charger if the battery is below 50-60%
3) Reboot at a higher level of battery
You didn't magically "lose" 30%+ of battery - that's impossible. You just had the estimate of charge level thrown way off.
As an example of what is possible - right now my typical drain is well below 1%/hour when the phone is sitting in good signal. In weak signal it's about 1%/hour.
Man I don't know what the deal is I'm on this thing gaming web surfing and other **** and I got my wife saying "Your always on your damn phone " and I get 18-20 hours per charge
Sent from my SAMSUNG-SGH-I777 using xda premium
Entropy512 said:
It's a minor hardware glitch that happens only when you reboot your phone on low battery. Solution is:
1) Accept the weirdness of your battery rising after the glitch
2) Reboot when on charger if the battery is below 50-60%
3) Reboot at a higher level of battery
You didn't magically "lose" 30%+ of battery - that's impossible. You just had the estimate of charge level thrown way off.
As an example of what is possible - right now my typical drain is well below 1%/hour when the phone is sitting in good signal. In weak signal it's about 1%/hour.
Click to expand...
Click to collapse
I have the same problem
Is that a problem of battery hardware or the phone? IS this a common problem with all i777? because I havent seen lots of people complaining about this?
Thanks
Ruchira88 said:
I have the same problem
Is that a problem of battery hardware or the phone? IS this a common problem with all i777? because I havent seen lots of people complaining about this?
Thanks
Click to expand...
Click to collapse
It is, as I've said before, the one corner case where our fuel gauge fails. It's the small price we pay for NEVER having to worry about battery recalibration - it will always converge towards truth, the only problem being that high load after a reset (rebooting on low battery) will throw it off for a few hours.

[Q] Xperia turning off... and off... and off

Hi, I got a very annoying problem.
Since a few weeks ago, flashed a ROM and when I've tried to use the phone, it keeps turning off randomly, sometimes after a few minutes, sometimes after hours. So, I tried to take it back to the clean original 2.3.3 ROM, but it keeps happening. ¿Any idea? ¿Any solution? Please, help me.
Oh, something else, it only happens when the phone's used with the battery, when it's attached to my laptop and used as modem, the problem doesn't appear.
I had the same problem, it said android system shutting down. I just bought new battery and it works.
Sent from my Xperia X10 using xda premium
I think, it's the most logical option, but I was trying to get some feedback first. Thanks.
Maybe calibrating the battery.
Sent from my Xperia X10 using xda premium
go back to stock and see if it helps! try to troubleshoot the problem! Also, don't install any apps!
There are instructions on how to calibrate your battery in the first post in this thread:
http://forum.xda-developers.com/showthread.php?t=1489214&highlight=calibrate+battery
If the problem is the battery, you might find that after calibration that the battery drains faster than expected, and still shuts down, only this time it warns you that it's gonna shut down. This would then be the true battery drain. If that is the case, you might just need to buy a new one anaway.
Otherwise, I don't know what else could be causing those symptoms. (Other than an electrical fault, from accumulated damp or something)
kZard said:
There are instructions on how to calibrate your battery in the first post in this thread:
http://forum.xda-developers.com/showthread.php?t=1489214&highlight=calibrate+battery
If the problem is the battery, you might find that after calibration that the battery drains faster than expected, and still shuts down, only this time it warns you that it's gonna shut down. This would then be the true battery drain. If that is the case, you might just need to buy a new one anaway.
Otherwise, I don't know what else could be causing those symptoms. (Other than an electrical fault, from accumulated damp or something)
Click to expand...
Click to collapse
thanks so much..............
What happens it's that the phone shuts down suddenly, the message appears for a seconds and it's off. Wait for a few seconds, try to turning on again and sometimes works for some minutes, and sometimes it's keeping turning off, and off, and off. But, the battery level seems to be correct, I mean, when I turn on the phone after one of these sudden shutdowns, only drains the logical ammount of battery for starting use the phone.
I think... if the problem never appears when it's attached to the laptop and charging constantly, and magically appears when I used the phone with the battery, it's probably just a battery issue, right?
I have a similar problem to this, my phone randomly shuts down after showing the 'Android System shutting down' message but sometimes loses ALOT of battery. Last night it went from 78% to 8% after shutting down :/ I noticed it happened more often when im playing games or taking a video, things that take up more battery. When i keep it plugged in it keeps awake so the problem stops but i cant keep it in all day every day. I dont really want to buy a new battery until i really really have to, but I have had the phone and battery since the x10 first came out about 2 years ago, so anyone any other ideas? Thanks
danielk0302 said:
I have a similar problem to this, my phone randomly shuts down after showing the 'Android System shutting down' message but sometimes loses ALOT of battery. Last night it went from 78% to 8% after shutting down :/ I noticed it happened more often when im playing games or taking a video, things that take up more battery. When i keep it plugged in it keeps awake so the problem stops but i cant keep it in all day every day. I dont really want to buy a new battery until i really really have to, but I have had the phone and battery since the x10 first came out about 2 years ago, so anyone any other ideas? Thanks
Click to expand...
Click to collapse
Try wiping battery stats then charge to 100% (it may help, not sure)
Sent from my X10S using XDA
laneyofdeath said:
Try wiping battery stats then charge to 100% (it may help, not sure)
Sent from my X10S using XDA
Click to expand...
Click to collapse
Yeah tried that but it didnt seem to work :/
could it be hardware problem like broke battery or bad connection on motherboard?
Could be pal are u within your warranty (sony (Ericsson) it has a 2 year global warranty but u need to ring ur network provider and ask them to put u through to se
Sent from my X10S using XDA
Yeah this happened to me before about 6 months ago, so i went to my provider (3) and they sent it away to Sony Ericsson and they sent me a whole new phone but I didnt want to do that again really, but i may have to. When im not using WiFi or 3G then it works fine, and when its plugged in to the charger it works so i guess its a case of not usuing the internet when im not near a charger
I have the same problem.
My X10 reboot random when using 3G (Wifi is still OK) and Gaming. Now i'm on Stock 2.3 and stock kernel and....wait. (Flash some ROM and change the new battery....but not solved )
Anyone help us !!! Plizzzzzzzzzzz
Maybe your solution
I had the same problem sometimes with original kernel after 1 year of using my phone.
Then i tried to install a new rom, and i was thinking the problem was solved. But it was not...
I finished by trying the X10S (v7) rom with DoomLord kernel (1113mhz) and this problem was solved...
I tried some kernels and this one was stable with a good battery life and no shutdown problem. With some other kernels i had this problem back.
So I think that kernel could be the problem.
Infortunately, with the rom X10S v8, Doomlord kernel cause issues with wifi (unable to get ip adress). So now i use kCernel-SE-stock-mod-v1 and no shutdown problem anymore.
*Maybe the solution is*
Try to change your kernel with one of thoose :
- kCernel here (in "2. kCernel-SE-stock-mod-v1")
- DoomLord (search fo x10_gb_DooMKernel-v06-1113_wifi.zip)
Note :
- With this two kernels, you'll have to download appropriate wifi patch and install it from SDcard via xRecovery
- don't try to install X10S v8 if your bootloader is locked
So, try to flash your X10 using flashtool with Doomlord kernel
Tell us if it worked, i hope it solved your problem as it do it for me.
voltage
Hi,
I have had this issue too, for the last few months. No matter what ROM/Kernel, batt stats cleared, etc, still the same. Can idle all day, but as soon as I use 3G, GPS, or use any intensive app, she shuts down.
As an experiment I installed a battery monitor that plots graphs of % charge, temp, voltage, etc over time.
I had a close look at my logged graphs and have noticed that just before each reboot, the voltage seems to dip drastically. Battery charge is fine, does not seem to matter. but a sharp drop in voltage occurs. Increased draw for the more complex tasks (3G, GPS, etc) seems to be tripping it up.
As the Battery is now 2 years old, I figured it is just starting to fail? And iv noticed lots of people are suddenly coming out and complaining about this issue.
I just ordered a few new Batteries from 'Ebay', will see how we go!...
peace.
[INFO / SOLUTION] Suddenly shuts off with red LED.
Good to know:
The X10i/a have now reached an age, where battery failures is very common nowadays. Specially if one got the device early on or just after the launch.
Symptoms of a failing battery:
* Device suddenly shuts off, even when the battery have several percent remaining.
* Device drains fast, even when not used.
* Device might just shut off for no whatsoever reason when doing something that draws a lot of power, and will restart just fine.
* Device has a surprisingly fast charge time from empty to full.
When the device shuts off all of a sudden, it's followed by the indicator LED blinking red, rapidly three times, and might repeat this at restart attempts.
Sometimes it takes several tries before the device starts up again. Battery just needed a few minutes/an hour of "rest".
There's nothing wrong with the device.
Just get a fresh replacement battery and it'll work just fine again.
But beware:
There are many fake batteries out on the market, claiming that they have higher capacity, yet very slim in size.
There's a simple rule when it comes to battery capacity:
More capacity = larger in size, which might need a special back-cover. There's no escape from that.
If one would happen to find a such incredible slim battery with super capacity, the battery security circuits and/or chemical makeup probably have been circumvented/changed, and have a high risk of catching fire and/or explode when charging/discharging.
Yeah thanks for all the advice and sharing your problems. My phone does reboot alot when im using 3G or taking a video. Recently my battery would reboot, drop alot of percentage and then increase percentage without charging...magic I dont really want to buy a new battery because my new contract starts in june i think, but maybe il have to. Good luck for everyone else dolving there problems
Also, [email protected], i am on doom kernel and i still get reboots :/
danielk0302 said:
Yeah thanks for all the advice and sharing your problems. My phone does reboot alot when im using 3G or taking a video. Recently my battery would reboot, drop alot of percentage and then increase percentage without charging...magic I dont really want to buy a new battery because my new contract starts in june i think, but maybe il have to. Good luck for everyone else dolving there problems
Also, [email protected], i am on doom kernel and i still get reboots :/
Click to expand...
Click to collapse
I've too had the same problem. solved it by replacing battery
Now everything's alright
I'm running dixperia rom with stock kernel
EDIT: but now I have a small problem. Hope someone can solve it. Sometimes, suddenly, the hardware keys light and backlight turns on, without doing any thing and this drains my battery I have to turn on the screen and turn it off back to switch off that backlight and hw keys light
Sent from my Xperia x10 using my fingers
Im getting a new battery soon I hope so I will hopefully get my problem solved

Battery problem

My amaze is automaticaly shuting down,and before shut down its showing 48% battery life,it is automatically restarting and showing 4% then after 1 hour its restarting one more time and showing 16% ,,, i cant understand what it is,,,and i have changes rom,from off to custum,its not helpeing ,now i am in energy stock rom,,,how can you help me,what can i do?!does it battery problem,or calibration ??!?!
gogjhan said:
My amaze is automaticaly shuting down,and before shut down its showing 48% battery life,it is automatically restarting and showing 4% then after 1 hour its restarting one more time and showing 16% ,,, i cant understand what it is,,,and i have changes rom,from off to custum,its not helpeing ,now i am in energy stock rom,,,how can you help me,what can i do?!does it battery problem,or calibration ??!?!
Click to expand...
Click to collapse
I have a similar problem. My phone randomly turns off/restarts. Afterwards, my battery icon turns gray for a few minutes. When it comes back, it drops by ~10-20%.
This actually happened to me before several months back. Last time, I called HTC and they gave me a new battery. That worked for a couple of months, but now it's back. I'm currently working with HTC tech support to get it figured out.
kered424 said:
I have a similar problem. My phone randomly turns off/restarts. Afterwards, my battery icon turns gray for a few minutes. When it comes back, it drops by ~10-20%.
This actually happened to me before several months back. Last time, I called HTC and they gave me a new battery. That worked for a couple of months, but now it's back. I'm currently working with HTC tech support to get it figured out.
Click to expand...
Click to collapse
yes the same,,,when i bought it has that problem,but after one month it fixed,,,now after 5 months it begins and i cant fixed and i ma really getting nervous of it!!!
kered424 said:
I have a similar problem. My phone randomly turns off/restarts. Afterwards, my battery icon turns gray for a few minutes. When it comes back, it drops by ~10-20%.
This actually happened to me before several months back. Last time, I called HTC and they gave me a new battery. That worked for a couple of months, but now it's back. I'm currently working with HTC tech support to get it figured out.
Click to expand...
Click to collapse
Are you stock
Sent from my HTC_Amaze_4G using xda premium
fcpelayo said:
Are you stock
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
I was, but I recently installed Energy rom. The problem is still there. I'm running my phone in safe mode now and seeing if my phone restarts.
Quite a few people have problems with stock batteries. I encounter the same problems regardless what ROM I'm running. I bought a couple Anker 1900 mAh batteries and will report back.
You need a new battery, but you can try draining the battery all the way down to the point that the device can't even come on, then it charge it over night all the way back up. See if that helps, it tends to help with this battery issue.
Ido I have the same prob but I was thinking how about resetting battery stats in recovery
Sent from my HTC_Amaze_4G using xda premium
I am so relived to hear that I'm not the only one with this problem. Let me tell you guys my experience with up to 3 batteries, various roms, and weeks of googling...
So basically, changing battery do fix the problem; but only temporarily. It can fix the problem for about a couple weeks or months, but the problem will come back anyway. I am on my third battery now and switching between the batteries; so, I am pretty sure that it is only a temporary fix. Cycling between the three battery sometimes is pretty helpful (but again, it is just a temporary fix).
Another way to fix it temporarily that works pretty well for me is to take out the battery, wait for about 5 seconds, and turn on the phone again. It only fix the problem for about a couple days though; so, might as well switch battery if you got another battery.
Another possibility to fix it without playing with the battery, you can try factory reset or install another custom rom. It sometimes helps also, but a pain if you are not the type that likes to try different roms.
Lastly, the better and simpler fix is to reboot to recovery, wipe all caches and dalvik, fix permissions, and reboot again. This can fix the problem (but only temporary).
Out of those four tries, I find that swapping battery or full wipe / install
Custom rom tends to fix the problem for a longer time. I haven't been able to find any permanent fox for the random shutdown yet. But, I hope those information helps for anyone who have the same problem
Sent from my HTC_Amaze_4G using XDA
Dark Nightmare said:
You need a new battery, but you can try draining the battery all the way down to the point that the device can't even come on, then it charge it over night all the way back up. See if that helps, it tends to help with this battery issue.
Click to expand...
Click to collapse
its not helping i have tried 3 times before writhin here.... (
Sent from my HTC_Amaze_4G using Tapatalk
The draining battery does work. Just turn EVERYTHING on to drain it (brightness, GPS, bluetooth etc.) and watch some videos to drain it down all the way. After this do a mini power cycle (pull battery wait awhile, put it back, then leave it charging for at least 10 hours).
This solved the problem for me
sedrader said:
The draining battery does work. Just turn EVERYTHING on to drain it (brightness, GPS, bluetooth etc.) and watch some videos to drain it down all the way. After this do a mini power cycle (pull battery wait awhile, put it back, then leave it charging for at least 10 hours).
This solved the problem for me
Click to expand...
Click to collapse
Exactly, worked for me and quite a few others, I've tested it myself when I had bought my second device used, it came with this very issue, I killed what was left of it and let it charge over night, it's been remarkable ever since, but different folks different strokes, the next best thing to do is to change the battery since that solved it for others. And for the record, the oem battery is the best to replace it with since some anker batteries have only made it worse for some.
getting my newly acquired Amaze device in a couple of days and will see if i run into this issue... god hope not lol... if battery issue does occur - will follow thru the full batt drain solution (mentioned above).
Dark Nightmare said:
Exactly, worked for me and quite a few others, I've tested it myself when I had bought my second device used, it came with this very issue, I killed what was left of it and let it charge over night, it's been remarkable ever since, but different folks different strokes, the next best thing to do is to change the battery since that solved it for others. And for the record, the oem battery is the best to replace it with since some anker batteries have only made it worse for some.
Click to expand...
Click to collapse
10 hrs tho?
Sent from my HTC_Amaze_4G using xda premium
fcpelayo said:
10 hrs tho?
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
I don't know about 10 hrs, I just put mine to charge when I went to bed, was perfectly fine and back to normal, fully charged when I woke.
gogjhan said:
its not helping i have tried 3 times before writhin here.... (
Sent from my HTC_Amaze_4G using Tapatalk
Click to expand...
Click to collapse
What batteries did you use?
I have this problem too, it annoys me every dam day, if I get rid of this phone any time soon it'll be just because of that :/
Sent from my HTC_Amaze_4G using XDA
fuego77 said:
I have this problem too, it annoys me every dam day, if I get rid of this phone any time soon it'll be just because of that :/
Sent from my HTC_Amaze_4G using XDA
Click to expand...
Click to collapse
Get a new stock battery should fix your problem for while
Sent from my HTC_Amaze_4G using xda premium
I'm having this issue as well. My phone would randomly just shut off on me while using it at say, 75%, then turn off. When I boot it back on, it drops to around 50% or so.
Does the battery drain fix truely work? My girlfriends phone does the same (its an acer though).
Sent from my HTC_Amaze_4G using xda premium
justin0025 said:
Does the battery drain fix truely work?
Click to expand...
Click to collapse
I have my stock battery and 2 Ankers. The phone will randomly die with any of the batteries. The battery drain trick seems to work okay, but it certainly isn't a "fix" IMO.
I drained my stock battery last weekend and charged it to 100% on the Anker charger. Worked great down to 10% on Sunday. Charged the phone to 100% on the nightstand, while I slept Sunday night. Phone randomly shutoff at ~25% at work on Monday. Had similar results with the two Anker batteries too.

[Troubleshoot]My Galaxy S2 is draining battery very fast!

Hello XDA,i bought my Samsung Galaxy S2,two months back,around end of november.Since then,i had a 1650 mAh battery and the XXLSJ JB leak.I thought it was normal to do that for a leaked firmware,so i switched to 4.0.4 (stock firmware,from england aka XEU).That didn't solve the problem either.I struggled for about 2 months,installing custom ROM's,Kernel's,verifying wakelocks on BBS,rooting,SetCPU,everything that i found out on google.My friends said it was the battery's fault.3 Days ago,i bought the 2000 mAh battery kit (wich comes with the 2000 mAh battery,and the expanded case).I've upgraded to 4.1.2 since it was released 7 days ago for Nordic Countries (NEE) and it still didn't fix it.A week ago,i've tried a market app called "Battery Calibration".It somewhat worked.Now,i'm on the 3rd reformat of the battery and it's still draining as before.What is happenning?May it be a hardware problem?It also gets hot on top,near the camera...
Maybe you have too many services running, maybe the reception in your area is poor, maybe you have wifi-bluetooth-gps constantly running, maybe your brighness is set the max and you play all day, maybe it's a hardware fault....
Post your battery screenshots will help alot. Post both screens plus display running time. BBS info will also help.
Sent from my digital submersible hovercraft.
f-r said:
Maybe you have too many services running, maybe the reception in your area is poor, maybe you have wifi-bluetooth-gps constantly running, maybe your brighness is set the max and you play all day, maybe it's a hardware fault....
Post your battery screenshots will help alot. Post both screens plus display running time. BBS info will also help.
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
First of all.Everything i do,it's draining battery,wi-fi is always on when i'm at home.I chat very often when i'm at home on WhatsApp.Bluetooth and GPS is always off.Brightness is always set on Automatic and i don't play that often.I categorize my phone at about medium usage.
About BBS screenshots and Battery ones,look.
EDIT:
Right now,i'm using NeatROM Lite 4.3 with PhilZ Kernel.
That's your 2000 mAh battery?
Make it outta the box and claim warranty, go with the excuse that gets hot near the camera (which is scary) and tell them that you need a device that can hold at least 12 hours.
Sent from the little guy
gastonw said:
That's your 2000 mAh battery?
Make it outta the box and claim warranty, go with the excuse that gets hot near the camera (which is scary) and tell them that you need a device that can hold at least 12 hours.
Sent from the little guy
Click to expand...
Click to collapse
You don't get it.It always has been like that.The hot near the camera issue was present since 1650 mAh battery.Must say i bought the phone Second-Hand,no warranty,no nothing.
I think that ur battery is fake. Or you should restore our phone.
hatedman95 said:
You don't get it.It always has been like that.The hot near the camera issue was present since 1650 mAh battery.Must say i bought the phone Second-Hand,no warranty,no nothing.
Click to expand...
Click to collapse
Now I get it, no warranty.
You need to nuke script so you can clean all previous ROMs leftovers.
60% chance it'll work.
Sent from the little guy
0xx_Linux_ said:
I think that ur battery is fake. Or you should restore our phone.
Click to expand...
Click to collapse
*Your
No,it isn't,i bought it from Samsung Store.I told gastonw why
gastonw said:
Now I get it, no warranty.
You need to nuke script so you can clean all previous ROMs leftovers.
60% chance it'll work.
Sent from the little guy
Click to expand...
Click to collapse
It was on 2.3.5 when i bought it..I don't know if it had the same problem or not..My girlfriend has a Samsung SII and she gets a 1d life outta 1650 mAh battery.I don't get it why i get less since she has no Auto-Brightness and she constantly talks with me on Whatsapp and listens to music sometimes.She also plays games,and she still gets atleast 1d battery life.
I've heard this happening to phones after water damage
If both stock and extended batteries don't do it, plus the warm spot near the camera - I suspect it to be hardware fault.
Edit: try to sell it for parts (or...) and get another phone. This probably will require to chang the main PCB.
Sent from my digital submersible hovercraft.
f-r said:
I've heard this happening to phones after water damage
If both stock and extended batteries don't do it, plus the warm spot near the camera - I suspect it to be hardware fault.
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
Oh god.Let's hope it's not.I don't want to spend more money on repairing the phone than using it,honestly.
hatedman95 said:
*Your
No,it isn't,i bought it from Samsung Store.I told gastonw why
It was on 2.3.5 when i bought it..I don't know if it had the same problem or not..My girlfriend has a Samsung SII and she gets a 1d life outta 1650 mAh battery.I don't get it why i get less since she has no Auto-Brightness and she constantly talks with me on Whatsapp and listens to music sometimes.She also plays games,and she still gets atleast 1d battery life.
Click to expand...
Click to collapse
Never trust previous owners, they all been here at xda.
You GF gets a day out of it because she's a girl, girls always get a day.
Nuke it up, you should be looking at 2 days with 7 hours of screen.
Hell, I get 4,5 in a day and a 1/2.
Sent from the little guy
Same problem, bro :/
Gosh, I have had this problem too as long as I have had my phone and I'm so tired of this constant charging
I haven't nuked my phone like Gastonw was suggesting but now that I know there's such a thing I probably will. I'll post my battery stats too if anyone knows what to do if the nuke doesn't work. I hope I and everybody else that has this problem finally gets the answer.
Edit: Also I'm running the samsung 4.1 update, rooted and as you can see I almost haven't used the phone today and still only got 11-12 hours of battery lifetime.
henettaja said:
Gosh, I have had this problem too as long as I have had my phone and I'm so tired of this constant charging
I haven't nuked my phone like Gastonw was suggesting but now that I know there's such a thing I probably will. I'll post my battery stats too if anyone knows what to do if the nuke doesn't work. I hope I and everybody else that has this problem finally gets the answer.
Edit: Also I'm running the samsung 4.1 update, rooted and as you can see I almost haven't used the phone today and still only got 11-12 hours of battery lifetime.
Click to expand...
Click to collapse
Sure you battery still good?
That's a hell of a drain you got there.
Check this out:
http://forum.xda-developers.com/showthread.php?p=38025840
Sent from the little guy
gastonw said:
Sure you battery still good?
That's a hell of a drain you got there.
Check this out:
http://forum.xda-developers.com/showthread.php?p=38025840
Sent from the little guy
Click to expand...
Click to collapse
Well, I have been thinking of buying a new battery (either the stock 1650mAh or the 2000mAh) but when I was running the stock samsung 4.0.4 firmware the most battery draining process was ''google services'' or something like that so I thought there was a problem with the software and so I didn't buy a new battery. I checked was anyone else having the same problem and it seemed to be a common bug. Some people where experiencing it on 2.3 and some on 4.0 but i didn't found an answer. When I heard that the 4.1 update was out I wished that it would fix the battery draining and kinda it did because no more the ''google services'' was draining all the battery but now it's the screen (which I know it should be) but even know that the software seems to be all good, battery still drains just as fast so just buying a new battery might fix my problem... and it hopefully does.
henettaja said:
Well, I have been thinking of buying a new battery (either the stock 1650mAh or the 2000mAh) but when I was running the stock samsung 4.0.4 firmware the most battery draining process was ''google services'' or something like that so I thought there was a problem with the software and so I didn't buy a new battery. I checked was anyone else having the same problem and it seemed to be a common bug. Some people where experiencing it on 2.3 and some on 4.0 but i didn't found an answer. When I heard that the 4.1 update was out I wished that it would fix the battery draining and kinda it did because no more the ''google services'' was draining all the battery but now it's the screen (which I know it should be) but even know that the software seems to be all good, battery still drains just as fast so just buying a new battery might fix my problem... and it hopefully does.
Click to expand...
Click to collapse
Battery life comes with good settings.
I got lucky there, 5.4 hours is a good number. Today I'm at 33% looking at 3.5 hours screen time. If I keep my screen on from now on i'll get to 4.4 hrs for sure. Now...good screen time right? Well...I AM gonna have to CHARGE it TODAY!
The thing is to catch the drainer "in the act" with betterbatterystats and once you've done that, you're off the hook.
This is the "where's the charger era", we all need to embrace that, so when we suddenly get 2 days outta 'em we can brag & giggle.
The day will come...where we will be able to charge our devices in 15 minutes and battery will last a week.....
Sent from the little guy
Please perform a factor reset. I was also having the same issue, a factory reset made everything normal.
tip - backup imp data like contacts, messages and everything from your internal memory.
Sent from my GT-I9100 using xda app-developers app
heavy usage
as i see it, you are a heavy user.
also the 4.1.2 official roms have a media scanner issue. you can search xda for the fix, but it willl just shorten the wakeup time.
best to avoid heat from the battery/phone. if it's heating up, it's probably working hard.
also check your network signal, sometimes when the signal is weak, the phone does extra work to search for a signal.
follow the previous post.. try to install a new fresh rom. make sure to wipe everything.
turn off all animations for 4.1.2
check your widgets so that they won't refresh. set it to manual refresh.
good luck!

Screen flicker and device shutdown

Hi xda! So I've been having a problem for a couple of months with my SGSII and i have searched a lot but i haven't found a solution yet.
The problem is that battery behaves normally and has a normal drain rate, but when it reaches 40% more or less it drains massively and drops to 10 % (more or less, could be 11% or 9%. It is not something precise and accurate) and screen immediately starts to flicker, backlight as well, then the signal is lost and phone shuts down. After that i can not turn it on unless i charge it.
I have looked a lot and pretty much all of the forums recommended to buy a new battery. I bought another battery (original) and the problem still continued. I've also tried swapping batteries with a friend, but the problem still happened to me and not to him. Also I have tried a lot of Roms, I've tried going back to stock as well, but still nothing.
Currently I'm running Cyanogenmod 10.1 RC2 because it gives me the best battery life in those 60%.
I leave you an attachment of a screenshot. As you can see battery percent dropped a lot at the end, and i wasn't using it heavily.
Thank you in advance.
It is a hardware issue, I had the same problem (battery would drain below 10% though), sent it to Samsung, Motherboard and Charge Socket got replaced, I don't know which one was causing it because I had other issues like broken home button too.
brpper said:
Hi xda! So I've been having a problem for a couple of months with my SGSII and i have searched a lot but i haven't found a solution yet.
The problem is that battery behaves normally and has a normal drain rate, but when it reaches 40% more or less it drains massively and drops to 10 % (more or less, could be 11% or 9%. It is not something precise and accurate) and screen immediately starts to flicker, backlight as well, then the signal is lost and phone shuts down. After that i can not turn it on unless i charge it.
I have looked a lot and pretty much all of the forums recommended to buy a new battery. I bought another battery (original) and the problem still continued. I've also tried swapping batteries with a friend, but the problem still happened to me and not to him. Also I have tried a lot of Roms, I've tried going back to stock as well, but still nothing.
Currently I'm running Cyanogenmod 10.1 RC2 because it gives me the best battery life in those 60%.
I leave you an attachment of a screenshot. As you can see battery percent dropped a lot at the end, and i wasn't using it heavily.
Thank you in advance.
Click to expand...
Click to collapse
May be there would be some hardware related problem. But why dont you give a try to to a wakelock detector app like betterbattery stats or wakelock detector? Atleast you will know which app is eating your battery or is it a hardware related problem.
Nexcore said:
It is a hardware issue, I had the same problem (battery would drain below 10% though), sent it to Samsung, Motherboard and Charge Socket got replaced, I don't know which one was causing it because I had other issues like broken home button too.
Click to expand...
Click to collapse
Thank you for answering. Unfortunately I have already rooted my device hence voiding my warranty. Maybe i could have it fixed by some technician.
singhsidhartha said:
May be there would be some hardware related problem. But why dont you give a try to to a wakelock detector app like betterbattery stats or wakelock detector? Atleast you will know which app is eating your battery or is it a hardware related problem.
Click to expand...
Click to collapse
I have tried a lot of battery related apps. BBS is one if them. I haven't seen anything unsual. In fact I've also tried apps like greenify. However battery life in the first 60% of battery is actually good. After 40% comes the problem.
Send it to samsung
Install triangle away and reset counter then flash stock jb rom from your country & provider
Sent from my GT-I9100 using XDA Premium 4 mobile app

Categories

Resources