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Horrible battery life after 2.3.6

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By Tymong, Junior Member on 24th December 2011, 09:03 PM
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Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.

Batter Usage shows the Android OS at 93%!!!

Not using my phone, it is dead in about 7 hours.

Kernel Version
2.6.35.7

Build Number
GINGERBREAD.UCKK6

I am not rooted and dont want to root.

HELP!
 
 
24th December 2011, 10:24 PM |#2  
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Quote:
Originally Posted by Tymong

Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.

Batter Usage shows the Android OS at 93%!!!

Not using my phone, it is dead in about 7 hours.

Kernel Version
2.6.35.7

Build Number
GINGERBREAD.UCKK6

I am not rooted and dont want to root.

HELP!

You have an app that is driving data to your phone, causing the wifi chip to wake the phone all the time. Apparently a system app - a lot of people have been having this issue with KK6.

Beyond this - sorry, but if you are not rooted you will have to live with it. Identifying what is triggering the wifi interrupts requires obtaining a Wireshark capture, this is not possible without root. Even if a common root cause is found for what's going on with KK6, it's most likely in /system itself so can't be fixed without a custom ROM or at least rooting.

If you're not willing to root, why are you on a firmware developer forum? Have AT&T help you instead if you're on 100% bone stock unrooted.
25th December 2011, 01:19 AM |#3  
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Well if it's an APP causing it, then many many people must be running the same app cause all of the various forums out there are a lot of people with the battery drain after updating to 2.3.6. Even a lot of my customers have mentioned it also.

I doubt it is an APP doing it. I'd bet it is just some bad coding on Samsung's part. They are probably getting a lot of complaints and are most likely already looking into it.

As far as the why he is here if he doesn't root. Well I don't root as well and have no desire to being as stock works just great. (other than the battery drain)

This is a great place to hang out and keep up on other people using various phones. He posted in the General section, not the Developer's section for this phone. So I think his/her question was valid.

If he was asking the question in the Developers section I would understand your concern. But I don't feel you have to be into cooked ROMS to value this forum.

That's like saying to the people who like the "Fast and the Furious" moves to stop watching them because they have a Chevy and not a pimped up Civic.
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25th December 2011, 01:33 AM |#4  
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Quote:
Originally Posted by Tymong

Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.

Batter Usage shows the Android OS at 93%!!!

Not using my phone, it is dead in about 7 hours.

Kernel Version
2.6.35.7

Build Number
GINGERBREAD.UCKK6

I am not rooted and dont want to root.

HELP!

I'm not rooted with wifi on all the time just got the phone 3 days ago and I'm getting 14-15hrs with no issue down to about 15-20% battery life left before I have to stick back on charger. Could be a bad battery or device, I'm coming over from Sprint after using rooted evo3d and rooted photon.

Sent from my SAMSUNG-SGH-I777 using xda premium
25th December 2011, 03:20 AM |#5  
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The forum is called xda-DEVELOPERS.com

If you don't want to root, you're probably better off in the AT&T support forums, because honestly, it isn't worth our time to try and help someone who doesn't want to root fix a problem that is almost sure to require root access to fix, or in this case, even diagnose.
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25th December 2011, 04:29 AM |#6  
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I do believe many are having this issue after upgrading to kk6 (with same apps installed). I had the issue as well.
25th December 2011, 04:31 PM |#7  
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May be a system app, or something in /system causing an app to become unhappy.

Either way, it's not going to get fixed without Shark for Root captures from those encountering problems.

Sent from my GT-P7510 using Tapatalk
25th December 2011, 04:48 PM |#8  
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Quote:
Originally Posted by browncarpet

I do believe many are having this issue after upgrading to kk6 (with same apps installed). I had the issue as well.

I don't think it anything to do with KK6. As Entropy said its an app causing a wake lock. I'm run Ingram KK6 without any issues with battery.

Sent from my sgh-i777 using xda premium
26th December 2011, 12:41 AM |#9  
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Having this issue as well. Phone is stock. Ive been here since the captivate but I hang around with the sgs2. Never needed to root this phone as it works perfectly for me. But I did the update this morning at 100% charge and 9 hours later with no use it's down to 9%. I could go all day with moderate use and be at 30-40% by the time I go to bed.
26th December 2011, 05:14 AM |#10  
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I read on a rather long on a google forum that many had this issue after upgrading via ota but who knows. I found that wiping dalvik and flashing unnamed update again I have much better batter life. I did read in update that he reverted to an earlier kernel signature to fix the battery drain.
26th December 2011, 06:50 PM |#11  
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Im going back to 2.3.4 via this method.
http://galaxys2root.com/att-galaxy-s...y-s2-sgh-i777/

Losing 10% of my battery at idle /hour is ridiculous lol. Android os was at 87+% within 3 hours of restart.

Edit:
Okay so I did this method. Took about 5 mins after I got everything downloaded. I did not do the factory reset since it's not needed. Phones back to 2.3.4 and nothing was reset. Have all my sms's contacts, aps, wallpapers etc. Battery seems to be back to normal.
I recommend everyone who did that 2.3.6 update to revert back. To many problems with it.

I never entered download mode on this phone before. Just a tip: Keep holding all the buttons till the phone seems like it shuts off and keep holding them till you get into download mode. Do not let go or else it just powers off.
Last edited by NascarFastcar; 26th December 2011 at 07:58 PM.

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