galaxy SII battery usage Android OS using 50%

stranzer · Jun 25, 2011

i bought my galaxy SII 1 week back and im not much happy with my battery consumption ...its average but from two days i dont know why but the Android OS consumption usage is increasing.....can any1 plzz xplain me what to do and if i do rooting will it help with the android OS issue in battery

steslatt · Jun 25, 2011

If you do a search you will find this is a common problem. I am using villain rom and it seems to have helped a lot.

heshanj · Jun 25, 2011

well i guess it also depends on how much u use ur phone (the android OS usage i mean) i hardly used my phone this morning, and noticed then android OS was 62%. guess when the phone hasnt been used much, the biggest usage would be the OS

but yeah, on average i get around 14 hours on a full nights charge, with android OS using 40-50%

steslatt · Jun 25, 2011

I was getting a similar sort of battery life and os percentage as you heshanj until I flashed villian rom. Now os rarely goes above 20% and im getting over 60% left on my battery after 10 hours. I really recommend villain rom. Looks and features are just the same as stock firmware. To look at it you cant tell the difference, but battery life is a lot better. Also if you get the villain tweeks app you can use the new google talk app with video calling.

stranzer · Jun 25, 2011

thanks for the reply im totally new to this android amateur....so can any 1 have a guide for the step by step process...so how should i install this villian rom...im guessing rom means operating system right....so rooting also include in it.........

steslatt · Jun 25, 2011

Yes you have to be rooted to install villain rom. This is the guide here
[15.06.2011][CF-Root v4.0] KE2/7/8, KF1/2/4 - su+bb+CWM4 - xda-developers

Once you have rooted here is the villain rom guide
[18/6][XXKF2] VillainROM 1.4 for SGS2 < The ROM Noonski couldn't drain the battery on - xda-developers

heshanj · Jun 25, 2011

thanks for that, i shoudl seriously look into rooting

stranzer · Jun 26, 2011

thanks steslatt....do u have issues of autobrightness in villian rom ? and if anything unsual happens how can i go back to my orginal stock rom......and should i have to undo the rooting also for it.... thanks in advance..

sjedwardz · Jun 26, 2011

There is a good thread on this over at XDA developers. Seems like widgets are causing the problem - not necessary themselves maybe more like how Samsung are managing them.

Try removing ALL widgets - shortcuts are OK. Reboot and then see how you get on.

This really worked for me. Plus I disabled background data. Apps can still access internet if you launch them. You will have to reenable this to use the Marketplace for some reason - but just switch off again later.

Hopefully doing this you won't need to root.

steslatt · Jun 26, 2011

I cant comment on the auto brightness as I dont use it. You should do a nandroid backup after rooting before you flash villain rom. That way if anything goes wrong you can restore your phone to how it was. If you want to go back to standard firmware after you have rooted and flashed villain rom just do a wipe and flash a standard firmware pack, this will remove root as well.

thesludge · Jun 28, 2011

i have got mine down to 31% and running around 21-33 hours. My tips>

reduce screen brightness
stop wifi sharing
stop maps
stop voice commands

That made a huge difference to me

galaxy SII battery usage Android OS using 50%

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