I have an iPhone 3G running 3.1.3 jail broken and unlocked using ultrasnow. My battery drains pretty darn quick throughout the day from regular use. I have the backlight turned down. I have Location services off and I turn the wifi off. Still I can't get thru the day without a charge. I checked the usage today and I only got 4.25 hours. On standby I have 20hrs. Also I read about checking the sbs? settings. How do I do that? Thanks.
You say that the 3G is unlocked, is it on a network different than that which sold the phone? If so, did you Hacktivate during jailbreak?
If yes, then that is why your iPhone is draining battery. It is constantly using 3G/Edge (you didn't mention turning off Data, just WiFi) to look for a valid Push certificate. To counter this, go to this page [Subscriber Artificial Module] and follow the instructions given.
Yes it was purchased locked and I used Ultrasnow to unlock it for T-Mobile. I don't have the 3G on of course. I don't recall if I Hacktivated it or not during the jailbreak.
If you didn't use an AT&T (presuming that you are a T-Mobile USA) customer) SIM (inactive will work) to activate the phone, then the software that you used to jailbreak will have hacktivated the iPhone for you, so until you run SAM that I linked to above or use SBSettings to turn of Data (Just turning 3G off will not do, as the iPhone still gets data via EDGE / GPRS), your phone will constantly be looking for a valid push certificate, draining your battery in the process.
Last edited by Sherminator; 12-05-2010 at 07:09 PM.
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Searched first but no luck on battery drain
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