[Q] samsung galaxy s2 battery and heating issue - Galaxy S II Q&A, Help & Troubleshooting

Please help me after updating to ke7 and during using 3g net the device heating icredibly and bateery drain the same incredibly??? Please help me does anyone have the same problem of mine

rafat90 said:
Please help me after updating to ke7 and during using 3g net the device heating icredibly and bateery drain the same incredibly??? Please help me does anyone have the same problem of mine
Click to expand...
Click to collapse
In fact I've had the opposite - KE7 has seemingly reduced my battery consumption significantly. I flashed to it, did factory reset (to clean things up and finish the O2 debranding) and rerooted.
Titanium Backup has frozen all of the Samsung Hubs and WiFi Sharing + Manager and now my battery is epic. I'm not sure if its just the apps that I have frozen that have made the difference but you could always try reflashing, factory resetting or freezing apps yourself.

Ok thank you very much i did a factory reset and will see i hope every thing will be ok.and about titanium backup you mean to unistall samsung hub and so....(new android user) i used to fix issues on ios

Me too, since KE7 update, the battery life has improved dramaticaly. I'm on 87% after 7hours on battery, email sync to exchange, usage not that heavy; some texts, phone calls, news updates - blue tooth and wi-fi on.
On KE2 it would have been about 65% by now.
I can also see the phone is awake much less looking on the batter usage graph.
SIM free Galaxy SII

Rooted or not rooted ?
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troed said:
Rooted or not rooted ?
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
yes it's rooted

Do you often use the camera?
Yesterday I've shot a few fotos at school and didn't go out of the app, only pressed the power button to standby. After I got home, my SGSII felt very, very hot at the back- and frontside. Also the battery level went down in 3% steps every few minutes.

I think now every thing is ok today 6 hours of heavy using games and net browsing just drain about 45% from 100% )))
Sent from my GT-I9100 using XDA App

It's kinda choronic problem for KE7 , battery drains so quickly.

Uninstall samsung hub and freez te wifi sharing with titanium backup it's realy helped me and other samsung apps that's eating the battery
Sent from my GT-I9100 using XDA App

SNS might be the culprit...
I've had excellent battery life with KE7, only one time it dropped 35% in 3 hrs of sitting idle, no user activity! And at that time, I had unfrozen the Social hub.... Off to the freezer it goes again...

I'm still on the old KE2 release (since O2 hasn't released this Kies update yet) and my battery is down to 31% in 11 hours. I was a little worried earlier because while I was playing 'Fruit Ninja' my phone temperature went up to 48C and the phone screen became very hot.
Hopefully this will be fixed in later releases. Their is a battery consumption bug with 2.3.3 with dual-core phones, which Google is addressing as we speak.

Could you please explain again what "freezing" an app exactly does and how to do it?
I'm on KE7, and the battery drains even if the phone is in Airplane mode. At night the battery drains by about 10-15% per hour which is just unacceptable because I cannot leave it off the charger otherwise it dies while I am asleep.
The device also gets incredibly hot after minimal usage.

This phone suffers about a severe design issue wich causes:
* Extreme overheat
* Display damage due to overheat (search for yellowish tint)
* Bad audio amplifier wich causes bad audio in headphones
* Bad camera quality wich introduces pink spots (it's possible to corect via software alogotithms).

abhiroopb said:
Could you please explain again what "freezing" an app exactly does and how to do it?
I'm on KE7, and the battery drains even if the phone is in Airplane mode. At night the battery drains by about 10-15% per hour which is just unacceptable because I cannot leave it off the charger otherwise it dies while I am asleep.
The device also gets incredibly hot after minimal usage.
Click to expand...
Click to collapse
This is of course not how it should be, it happened to me as well 1-2 times a week, you should directly restart the phone when this happens, in my case it usually took days before this happened. SGS2 shall be "cold" when not in use or light usage.
I haven't seen it with KF3 firmware (used it for 6 days)
DrSlump76: please stop trolling in every thread. I suggest you buy another phone, SGS2's are very easy to sell second hand, you will not loose much money. Of the 4 issues you mentioned above I've only seen one (over heating) that had a simple work-around and now seems solved in KF3. A couple of friends using SGS2 has not even seen that one.

Ok just checked the KF3. But it's for kazagstan, Nordic and Indiaa.
So they are no in English? Cause my phone also kindda gets hot

my galaxy s2 get heated when i play any game for 15 min i feel lot of heat around the camera and form the screen is it normal
if no then any solution please

hi. im kinda annoyed that my S2 is so heating after 10 mins of playing some games. or just by texting it heats up like f***.
any remedies on this? can you guys kindly tell me what to freeze on TB so i can save some more battery life? thank you

lestervai said:
hi. im kinda annoyed that my S2 is so heating after 10 mins of playing some games. or just by texting it heats up like f***.
any remedies on this? can you guys kindly tell me what to freeze on TB so i can save some more battery life? thank you
Click to expand...
Click to collapse
Heating up while playing games is normal to an extent.
If u still think u need to fix it, try this:
http://forum.xda-developers.com/showthread.php?p=26144611
"To err is human, to forgive is divine"
Sent from my SGS II

immortalneo said:
Heating up while playing games is normal to an extent.
If u still think u need to fix it, try this:
http://forum.xda-developers.com/showthread.php?p=26144611
"To err is human, to forgive is divine"
Sent from my SGS II
Click to expand...
Click to collapse
I also had this problem (heating during texting in low signal areas, it's normal during gaming). I fixed it by flashing a new modem using the method in the link for the post above. However, he suggests flashing KH3, which is significantly outdated now. I'd try something a lot newer. Keep testing till you find a modem which works well for your carrier, country/area, and gives good data/calls. Having a good signal will see your phone stay cool in low signal areas while texting heavily.
Sent from my GT-I9100 using Tapatalk 2

Related

[Q] SGS II screen & back becomes hot

Hi guys!
Just got my SII yesterday. After couple of hours use I admit that the phone becomes hot even on normal usage, like downloading apps etc. The back of the screen as well as the screen itself slowly becomes hot. If i continue to use the phone it gets worse! I'm really confused n kind of scared. I've a iphone 3gs which rarely became hot. So, can u guys please tell me if its normal with SII or its just my unit that's got some problem?
Oh, sorry if its a duplicate thread. I've seen in different websites people saying it become hot when playing games. In my case since I had my phone I didn't even install a game yet! What I did is installed couple of apps, widgets and I use mspot to sync my music(446MB) over internet.
Any suggestions and advices appreciated!
It's normal that it gets hot when you use it
You have to remember that it's a dual core 1.2 ghz proc... and Yes it's normal..
Thanks for the replies. What concerns me most is the screen becoming hot and that I don't know if anyone else is experiencing this. How about u?
Aldonski said:
You have to remember that it's a dual core 1.2 ghz proc... and Yes it's normal..
Click to expand...
Click to collapse
a part of the issue is it is a 1 GHz CPU overclocked to 1.2 GHz, so whenever your activity demands 100% of CPU, it gets sped up to 1.2GHz and gets hotter than needed.
But yes, excessive heating is not a defect, the phone is just too thin and tightly packed to dissipate heat effectively.
Actually, i dont think it's normal
The processor sometime get stuck at 1.2GHz in my device
whenever ur phone get too hot, go and check SetCPU, if the phone dosent get below 1.2 when idle, then reboot
My guess it's a kernal thing
Not normal. Mine doesn't get hot even when gaming. It used to get hot before I updated the firmware. Now it does not.
Sent from my GT-I9100 using XDA Premium App
how can it be normal when the battery doesn't get warm at all while top screen and camera lens is hot like hell, and yes i mean hot like hell. so far no firmware has fixed this problem.
Blue1k said:
Not normal. Mine doesn't get hot even when gaming. It used to get hot before I updated the firmware. Now it does not.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
I had the same issue, it dissapeared after I flashed to KE7
Thanks for the replies.
Well, it seems yesterday my phone was warming up even in normal usage but now after using the phone for over 4hrs(after full charge) and a lot of usage(videos: 60-75mins, downloading apps, music: 40-50mins, little web browsing & checking fb & mail and sync & wifi always on.....) temperature is around 30 deg celsius.
Next thing giving me trouble is the capacitive menu button which wasn't working at all since yesterday(back button was ok). Last night, sometimes it worked for a few seconds and dead again. I was thinking I should call O2 for a replacement, suddenly its working again today! Guess its a software problem.
Another thing I'm concerned about is the battery life. After charging it to 100% and after the above mentioned usage the battery level is bellow 40% after only 4hrs. Well, brightness was 0% most of the time which is ok for indoor use. Its quite funny that the phone doesn't seem to discharge faster when playing videos(at youtube & vevo) compared to browsing web. In the review & battery tests at gsmarena they mentioned battery life is very good and can last almost a day with heavy usage. What u guys r experiencing? Is it similar to mine or mine has got a faulty battery.
which firmware are you running?
I'm on O2 as u r. So I guess its the same one. If not, mine's build number is ....XWKE2, baseband: I9100XXKDJ
NB: I'm using the stock firmware, didn't root and didn't use any optimisation app like juicedefender. And display brightness is on 0%, always on wifi.
KE2 is a little buggy, you try updating to latest firmware build KE7, might solve your problem.
you can do it if you connect your phone to your pc and run kies, or reading in the dev section of the forums there is a sticky there that informs you how to upgrade firmwares.
Thanks for the reply.
I use mac and the kies mac is in beta and won't let me upgrade(option disabled). I've tried the windows version of kies(downloaded directly from samsung portal) via paralles desktop for mac(lets u use windows app in mac) but it say mine is the latest version(ke2).
And the capacitive menu button is dead again! Is it possible that this is just a software problem? Or should I contact O2 for a replacement? Its my 3rd day with the phone so I've to report ASAP if i need a replacement.
The battery also feels faulty to me. It turned from 100%-1% with only 8hr of usage as follows:
videos: ~75mins(mostly HD),
downloading several apps apps,
music: 50+mins,
little web browsing,
checking fb, rss feed & mail,
sync & wifi always on,
brightness most of the time at 0%,
fring chat: 50-60 mins
And it took 3hrs to completely charge it up. Is it normal for you guys? Or should I request for a replacement? Any suggestions appreciated!
i have debranded my phone from O2 and upgraded to KE7 from kies, but if you cant do it that way you can try upgrading thru odin.
http://forum.xda-developers.com/showthread.php?t=1075278
This thread has multiple firmware versions and instructions on how to flash your phone (please note, if you decide to flash your phone, you do so at your own risk, even thuo the risk is quite small).
As for battery usage, i have rooted my phone and frozen a lot of bloatware, if i leave the phone on standby with wifi off the battery drains lest than 1% each hour, with wifi on its about 2% each hour.
Also i find that when i play angry bird a lot i have to recharge after about 6-7 hours, when i watch videos my phone heats up a little, it heats up a lot if i watch videos while charging.
hope that helps you, if not talk to the ppl at O2 to see if you can get it swapped out, but i think if you can get your firmware upgraded your battery drain should reduce and the shouldn't heat up as much.
Thank u very much for the replies. It looks like battery draining is normal for all SGS II users. Its kinda funny that playing videos over internet eats less power that browsing web(27.19min of HD video playing at vevo over wifi drained only 5% of battery!).
So now everything seem ok except the capacitive touch keys which sometimes which doesn't work most of the time. I'm just scared to use custom roms as it might void my warranty. Well, I'll try the link u mentioned and see if the problem still exists.
Thanks again

Worst case of battery draining on galaxy s2?

My galaxy s2 has had battery issues the day i got it.I was getting around 6-7 hours then, thought it was some issue with firmware checked the battery usage and everything seemed fine expect for few times the android os seemed a little high , so i installed a custom rom , tried sensation and villianrom and a few others .Villianrom seemed to help battery a little but few days in and battery is again draining like fuel in a f1.So i decided its nothing about the firmware and all , maybe i have a bad phone or battery cause its draining like 1% every 2 -3 mins while browsing or doing anything as a matter of fact i get about 4-5 or at best 6.5 hours but thqts rare.I mostly use wi-fi so it definitely uses less battery than 3g . So now my question is ... As i have rooted my phone do i get
The warranty assets as my phone is like 4 months old.I know about unrooting but will that do the trick ?
And btw apart from battery issues , which seem like i have a unique case , my experience with the phone has been amazing this is definetely the best phone on market ;-)
Please respond....and also share your experiences with battery backup of s2 .....thankyou. cheers B-)
*i forgot to add that another thing that i have been noticing is the high battery usage by the display , it sometimes is as high as 80% even on low brightness to which i have found no cure...no matter what i try it lowers sometimes to about 30% or more and is back again to higher, this has furthered my doubt that i have a faulty piece. Pls comment.
Sent from my GT-I9100 using XDA App
I'd say 1% every 2-3 minutes sounds about right if you have screen fairly bright.
Did you do a back up before installing custom rom?
If so install original rom back, then I think you need a usb jig, which is available from ebay. This will reset your custom binary counter so the warranty peeps won't know you've flashed a custom rom at some time.
I'm quite new to this so hopefully someone else may reply and correct me if wrong.
Mark
Razpor said:
. So now my question is ... As i have rooted my phone do i get
The warranty assets as my phone is like 4 months old.
Warranty Void .
I know about unrooting but will that do the trick ?
Unroot and reset custom rom counter to zero with USB jig .
And btw apart from battery issues , which seem like i have a unique case
Its in the first instance user apps that need sorting read the battery faq posts .
*i forgot to add that another thing that i have been noticing is the high battery usage by the display , it sometimes is as high as 80% even on low brightness to which i have found no cure...no matter what i try it lowers sometimes to about 30% or more and is back again to higher, this has furthered my doubt that i have a faulty piece. Pls comment.
Display uses the largest amount its relative all the figures say is that of the battery percentage used display has used xx amount . Could be battery used 5% of that 5% display used 50% as little else was used .
jje
Click to expand...
Click to collapse
you tryed installing betterbatterystats and check which app causes wakelocks? most apps that cause battery draining wake up your phone all the time.
there is a free version of it on xda
Mark67222 said:
I'd say 1% every 2-3 minutes sounds about right if you have screen fairly bright.
Did you do a back up before installing custom rom?
If so install original rom back, then I think you need a usb jig, which is available from ebay. This will reset your custom binary counter so the warranty peeps won't know you've flashed a custom rom at some time.
I'm quite new to this so hopefully someone else may reply and correct me if wrong.
Mark
Click to expand...
Click to collapse
Yes i made a nandroid backup
..
Also i mostly use phone at low brightness..so i cant explain the 1% per 2-3 mins..
And i am new to this too...1up for newbees ;-)
Hehe
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JJEgan said:
Razpor said:
. So now my question is ... As i have rooted my phone do i get
The warranty assets as my phone is like 4 months old.
Warranty Void .
I know about unrooting but will that do the trick ?
Unroot and reset custom rom counter to zero with USB jig .
And btw apart from battery issues , which seem like i have a unique case
Its in the first instance user apps that need sorting read the battery faq posts .
*i forgot to add that another thing that i have been noticing is the high battery usage by the display , it sometimes is as high as 80% even on low brightness to which i have found no cure...no matter what i try it lowers sometimes to about 30% or more and is back again to higher, this has furthered my doubt that i have a faulty piece. Pls comment.
Display uses the largest amount its relative all the figures say is that of the battery percentage used display has used xx amount . Could be battery used 5% of that 5% display used 50% as little else was used .
jje
Click to expand...
Click to collapse
Didnt knew tht were relative figures...thanks...
And i ll try the sorting out usrr apps thing , may be that helps ..but i still think i got a defective battery..do custom roms usually help
Battery a lot ?
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Click to collapse
@jjegan
And can you please give me the link to battery faq...i tried but cant seem to find it?
Sent from my GT-I9100 using XDA App
http://forum.xda-developers.com/showthread.php?t=1312273&highlight=battery
http://forum.xda-developers.com/showthread.php?t=1234264&highlight=battery
http://forum.xda-developers.com/showthread.php?t=1351663&highlight=battery
+ BetterBattery Stats + Juice Defender apps .
jje
I have cm9 so of course my phone consumes a lot of battery but sometimes it uses 2% in a night, but just a while ago i had 5% left of my battery, i go to get the charger and when i come back in 30 seconds, I have 0% of my battery left
Sent from my GT-I9100 using XDA App
on regular use, my batt wear off in a day or a day and a half, but when my kid play a HD game, the battery drained in just 3 hours.
I've only tried 2 custom roms, miui and criskelorom, and I think using criskelorom combine with neak kernel is my best so far
I used the trick of battery calibaration by ram3n and battery seems to hold up a little better. Betterbatterystats was really helpful as well as battery monitor and cpu spy . But still i guess yhe phone will suffer on heavy usage or even medim .
Sent from my GT-I9100 using XDA App
b3dm4n said:
on regular use, my batt wear off in a day or a day and a half, but when my kid play a HD game, the battery drained in just 3 hours.
I've only tried 2 custom roms, miui and criskelorom, and I think using criskelorom combine with neak kernel is my best so far
Click to expand...
Click to collapse
I havent tried crikelo rom ... I guess i ll try it... Villainrom seemed good for battery too .
Sent from my GT-I9100 using XDA App
Rapid Battery Drain on Galaxy SII
Razpor said:
I used the trick of battery calibaration by ram3n and battery seems to hold up a little better. Betterbatterystats was really helpful as well as battery monitor and cpu spy . But still i guess yhe phone will suffer on heavy usage or even medim .
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
My Samsung Galaxy S2 Battery drains heavily all of a sudden. I noticed that suspend backoff is consuming battery. It doesnt go into deep sleep either. Using ICS 4.03.I have attached Battery Stats dump file. Please advise.

[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!

[Q] Phone keeps shutting itself off, what to do?

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:

Battery lasts very short!

I have had my Galaxy S2 for almost 2 years now and I'm still going with the stock battery and it have worked great but some time around the start of Novmber I rooted and installed CM 10.1 and since then it feels like my battery life have become worse.
I now run CM 11, but it's still the same with battery life or even worse.
My phone never last a full day with normal usage. Today it went from 100% to 9% in less than 5 hours with only ~37 minutes of screen on time.
Todays usage: http://i.imgur.com/Adl7YQv.png http://i.imgur.com/G80vf2e.png http://i.imgur.com/YtcqKh7.png
Also, when listening to music on Spotify (offiline playlists) it draws battery like hell, it lasts maybe 3-4 maximum of listening. And when playing games with the charger connected it drains battery faster than it charges the battery.
What could be the problem here? Would really like to fix this problem but I do not want to go back to the stock Samsung software. Please ask questions if you have to (if you need some more information or such) and I'll reply as fast as possible.
Edit: http://i.imgur.com/th4Nalh.png (see my second post)
Fixoon said:
I have had my Galaxy S2 for almost 2 years now and I'm still going with the stock battery and it have worked great but some time around the start of Novmber I rooted and installed CM 10.1 and since then it feels like my battery life have become worse.
I now run CM 11, but it's still the same with battery life or even worse.
My phone never last a full day with normal usage. Today it went from 100% to 9% in less than 5 hours with only ~37 minutes of screen on time.
Todays usage: http://i.imgur.com/Adl7YQv.png http://i.imgur.com/G80vf2e.png http://i.imgur.com/YtcqKh7.png
Also, when listening to music on Spotify (offiline playlists) it draws battery like hell, it lasts maybe 3-4 maximum of listening. And when playing games with the charger connected it drains battery faster than it charges the battery.
What could be the problem here? Would really like to fix this problem but I do not want to go back to the stock Samsung software. Please ask questions if you have to (if you need some more information or such) and I'll reply as fast as possible.
Click to expand...
Click to collapse
Install BetterBatteryStats (google for download link on xda) and look what's draining your phone.
Your signal is very bad, that drains battery too.
Christiaan91 said:
Install BetterBatteryStats (google for download link on xda) and look what's draining your phone.
Your signal is very bad, that drains battery too.
Click to expand...
Click to collapse
So I installed BetterBatteryStats but as I restarted my phone the stats were reset and I can only view the stats for the current session, I will monitor it again sooner and remember to not restart the phone. However, when I restarted my phone it went from about 50% to 15% instantly, how did that happen? It has happened once before while running CM 10.1 also. Could it be that the phone just showed 50% but it really was 15%?
Picture of the battery drop is in the first post as I can't post links in replies (new user under 10 posts).
Also, how would be the best way to share my BetterBatteyStats? The included share feature just left me with an .txt that's a bit hard to read.
From the screenshots i can see your phone is always in search of signal.
Change the modem or pit it on gsm network for the time being
Further, the battery drop of restart is due to chip not behaving. Or battery is dying.
Change the battery is what i advise
Sent from my GT-I9100 using xda premium
Fixoon said:
So I installed BetterBatteryStats but as I restarted my phone the stats were reset and I can only view the stats for the current session, I will monitor it again sooner and remember to not restart the phone. However, when I restarted my phone it went from about 50% to 15% instantly, how did that happen? It has happened once before while running CM 10.1 also. Could it be that the phone just showed 50% but it really was 15%?
Picture of the battery drop is in the first post as I can't post links in replies (new user under 10 posts).
Also, how would be the best way to share my BetterBatteyStats? The included share feature just left me with an .txt that's a bit hard to read.
Click to expand...
Click to collapse
It's rather the other way around. I had these drops tens of times. Most of the times, if I leave my phone in deep sleep, it will go up again. So in fact the 15% is 50%(minus a percentage for rebooting).
Look what other people are posting in that thread and read the op before posting. But I think a txt file is good enough.
First try to find an explanation for this battery drain, before buying a new one.
Verstuurd vanaf mijn GT-I9100 met Tapatalk
vishal11in said:
From the screenshots i can see your phone is always in search of signal.
Change the modem or pit it on gsm network for the time being
Further, the battery drop of restart is due to chip not behaving. Or battery is dying.
Change the battery is what i advise
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I'm not really sure about how I "Change the modem or pit it on gsm network for the time being", if you could explain that it would be sweet.
I have only used my phone very little today as I have been distracted with other things and I slept all day so battery have been ok. I will return with results another time when I have been using my phone as I usually do.
Fixoon said:
I'm not really sure about how I "Change the modem or pit it on gsm network for the time being", if you could explain that it would be sweet.
I have only used my phone very little today as I have been distracted with other things and I slept all day so battery have been ok. I will return with results another time when I have been using my phone as I usually do.
Click to expand...
Click to collapse
Go to settings>more settings> mobile networks > change it to gsm
Try this first. If this resolves good otherwise find a suotable modem compatible with your area (search xda) and flash the modem zip file via recovery
Sent from my GT-I9100 using xda premium
I cannot find the GSM option there, got nothing from googling either.
Included a picture of what it looks like.
Sent from my GT-I9100
Fixoon said:
I cannot find the GSM option there, got nothing from googling either.
Included a picture of what it looks like.
Sent from my GT-I9100
Click to expand...
Click to collapse
Prefer network type, use 2G.
Mostly it has better connection, but not good for internet
GreekBlood said:
Prefer network type, use 2G.
Mostly it has better connection, but not good for internet
Click to expand...
Click to collapse
2g is gsm mode
Sent from my GT-I9100 using xda premium
I have monitored my phone with BetterBatteryStats for a few days now and I have posted in their thread and some people there helped me to reduce battery use from 6.3%/h to 2.0%/h in idle (on 3g with fast dormancy disabled). I uninstalled some apps and disabled sync on some other.
I have a question about Spotify also, when I play music from Spotify it seems like it uses to much battery. I use watchdog and I get alerts sometimes that it uses 40%+ cpu, that doesn't seem right does it? And when I open CPU-Z it shows that cpu is at least 20%+ in use all the time with no other program running, that doesn't seem right either. Anyone have any ideas about this?
After uninstalling Google now my battery lasts a bit longer...
Sent from my Galaxy S²
First of all, DON'T buy stuff before you try going to stock rom, you can get back anytime from your nandroid backup. Battery problems are very hard to track, someone already suggested betterbatterystats, try finding it yourself with that, and if you fail you can;
1- Wipe everything and run the phone with only betterbattery stats installed and see the problem,
2- Go to stock rom and see if your problem persists without any apps installed.
Edit: If your cpu is misbehaving (even in stock), there is nothing you can do since its a hardware problem, you need to go to service centre.

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