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Battery drain like crazy!!!!

S

Super7668

macrumors member
Original poster
Mar 7, 2008
78
0
After upgrade to 6.15 BB and 4.2.1 firmware, my 3GS's battery drain like crazy!! I normally have the 3G, WIFI and BT on, push off. From 100% to 55% only take two hours!!

Any idea? This can't be normal, I muse miss something here!:confused:
 
BTW, in the past two hours, I only use it for less than 10 mins! It's always just stand by.:confused::confused:
 
Restore the phone as new device with a custom firmware. Don't install any other stuff and test battery life.
 
restore as NEW and don't hacktivate...

I'm on 4.2.1 but w/ the old BB (3GS w/ old bootrom) and my battery has been fine, the signal seems to be not as strong as before though... Has anyone seen their signal strength drop down a little also? maybe that's what's causing you to drain your battery more to find better signal...
 
yep. same issue with the battery on the upgrade to 6.15 BB and 4.2.1 firmware.

battery is gone in less than 4 hours. My screen brightness is really low too.

Reminds me of the original iphone!
 
Official explanation as to cause of Battery Drain:

http://www.machackpc.com/iphone/3g/iphone-battery-drain-issue-after-using-ultrasn0w-here-is-the-fix/

Are you experiencing battery drain after installation Ultrasn0w 1.2 on your iPhone 3g & 3GS Baseband 06.15.00 ? Well, according to Sherif Hashim, iPhone Hacker, informed that the cause is not because of Ultrasn0w 1.2. Its causing because of the hacktivation process and has also given few tips on how minimize the battery drain..

If you are experiencing battery drain after installing ultrasn0w on baseband 6.15, here is a note from sherif hashim on the issue:

On a very important side note, before anyone starts to complain about battery drainage issues after installing the new ultrasn0w on the 6.15.00 updated BB, the culprit here is not ultrasn0w, it’s the hacktivation process (activating the phone by pwnage tool or redsn0w rather than using an official carrier sim to do so) that u mostly did while jailbreaking.

The 4.1 and 4.2.1 ipsws unlike their old ancestors, seem to keep looking for valid push certificates all the time, either thru your wifi, or thru your cellular data network (which u only have after installing ultrasn0w and hence u accuse it) , this can be seen clearly if u have a cellular working data plan for 3g or edge and u watched the settings > general > usage > cellular network data (sent & received are continuously increasing even without using any internet traffics on the phone) , this will also render the phone going hot even in stand by mode and also very rapid battery drainage occurs plus consuming ur data if you were not on an unlimited plan.

So to resolve this, u either:

A) try to activate the phone using the official sim if u have it (even if the sim itself is old and not working) , or borrow it from a friend if it’s possible, by any means, try to have an access to one and use it

B) if A is not feasible, u can install SBsettings from featured cydia packages and turn wifi and data off when u r not using it (shuts down both 3g and edge) , till C is done

C) there is a very nice module being worked on by a trusted jailbreak app dev, namely @sbingner, which will resolve that issue for those having it, the details of which shouldn’t be disclosed until he finishes his awesome work, till then, either use A or B to resolve the issue if it exists for you

sorry for the long post and thanks for your attention
Click to expand...
Click to expand...
 
Im not using an official carrier and gotta look into the other software to download.

turned off notifications and its not draining the battery as fast now.

Still happy to have my iphone working unlocked. Thanks Dev-team. A hero's work is never done.
 
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