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Solved: iPhone has started running warm and chewing through the battery

Discussion in 'Apple Mobile Devices' started by kcbear, Feb 22, 2013.

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  1. kcbear

    kcbear Thread Starter

    Joined:
    Jan 5, 2007
    Messages:
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    Hi,

    In the last couple of days my iPhone 3Gs running iOS 6 has started using the battery very fast and is always warm. if placed near the car radio it is always producing those annoying data transfer noises. Battery does not last overnight and runs down at about 1% per few minutes. I have installed a couple of apps recently however their removal has not helped my situation

    Any help would be appreciated.

    Thanks in advance
     
  2. Cheeseball81

    Cheeseball81 Retired Moderator

    Joined:
    Mar 3, 2004
    Messages:
    84,315
    Have you killed all the apps running in the background? I'd try that first. If that doesn't work, you can attempt a restore.
    If these both don't help, then it could be a hardware issue.
     
  3. gridl0ck

    gridl0ck

    Joined:
    Apr 7, 2010
    Messages:
    85
    Like Cheeseball said try a software restore first. Usually with the 3GS the power management IC (PMIC) becomes faulty causing a short which also causes the heat and battery draining. If you are good with hardware you can attempt a reflow but the PMIC usually needs to be changed.
     
  4. kcbear

    kcbear Thread Starter

    Joined:
    Jan 5, 2007
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    Software restore did the trick. Thanks guys
     
  5. cuttlefish

    cuttlefish

    Joined:
    Jan 17, 2007
    Messages:
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    First Name:
    Ian
    I went to one of those websites that tells you all the settings to keep battery usage to a minimum, and it worked!

    I am 99.9999% sure that "running apps" is not a real issue!

    Apple say it is simply a list of the apps you have used recently and as such they are not actually "running".

    The biggest change I made was to the "brightness" setting as that seems to be the culprit with excessive battery usage and the hot feeling!
     
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