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Thread: Descreased Battery Life after JB 3.0 IPHONE 3G

  1. #21
    I have noticed my battery drains much faster since the 3.0 firmware from Apple. I have yet to jailbreak, but I assume when people mention 3.0 they are talking about Apple's firmware. After reading this, now I am considering NOT jailbreaking my phone. I will still have to figure out how to reinstall Apple's firmware once I DO decided to jailbreak just in case there is a problem.

  2. #22
    Custom Title angiepangie's Avatar
    Join Date
    Jun 2009
    The Golden State :)
    Thanked 222 Times in 211 Posts

    Jailbreak, battery problems are mainly because they restore from backup. If you set up as new there's no problem.

    To go back, just click restore.
    I always feel sorry for the guy in the iPhone commercials. He always gets a call right in the middle of trying to do something

  3. #23
    Well, I had a 2G until very recently that has a reduced battery life because of 3.0 JB but it was not that bad. A little worse than 2.2.1 but no problem, battery was half empty at the end of the day and I charged every night.
    Now I have a 3GS 3.0.1 JB and battery is about the same.

    However I just installed 3.0.1 to my wife on a 3G and apparently the battery drains in few hours and is very hot.
    I mention the fact that it's NOT JB. She was complaining about the slowlyness of 2.2.1 JB so she wants to try w/o JB.

    I'll try the trick to restore NOT from backup to see if that changes something because at the moment, it's pretty useless ...
    iPhone 8GB, 1.1.4

  4. #24
    iPhone? More like MyPhone
    Join Date
    Oct 2007
    Thanked 21 Times in 20 Posts

    The reason the battery is going dead so fast is because you are not on an iphone data plan. Trust me I been threw everything trying to figure it out. I bet you most people that are having problems with the battery is NOT ON AN IPHONE DATA PLAN. U can't have the iPhone on 3.0 firmware without the iPhone data plan. The cellular network is going to keep trying to get data even when your not using it and your phone will get very warm. If u don't believe me, put a sim in your phone from an iPhone that has the iPhone data plan, your battery usage will be back to normal.

  5. #25
    iPhone? More like MyPhone the sr5's Avatar
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    Jan 2008
    Lake Forest, CA
    Thanked 22 Times in 18 Posts

    My Fiances phone is a 3.0 JB device and the damn thing will not hold a charge, im going to restore back to 3.0 and give it a try again tonight.

    It Is What It Is...

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