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Thread: iPhone enters DFU mode when SIM card instered and back to normal when taken out

  1. #1
    Angry iPhone enters DFU mode when SIM card instered and back to normal when taken out
    Someone please help!! I have tried to restore and unlock my iPhone 2G again but nothing is happening!! when i restore the phone instead seeing the apple logo with the loading bar underneath it the screen goes white and lines show up everywhere, it doesn't look normal. I restored the phone and then jailbroke it with Blackrain and everything is normal until i insert my t-mobile SIM card, as soon as i insert it it goes into DFU mode and when i take it out it goes straight to the home screen and everything works just fine. it only goes into DFU mode when the T-mobile SIM is inserted.

    iPhone 2G
    3.1.2

    someone please help

  2. #2
    Does this happen even if you insert a AT&T sim?

  3. #3
    No it doesn't. It works just fine if I insert the AT&T sim into it.

  4. #4
    Livin the iPhone Life adp's Avatar
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    Try going to a T-mobile store and replacing your SIM card (for free)
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  5. #5
    I've already tried two other tmobile sim's and they all do the same.

  6. #6
    Have you tried using redsn0w?

  7. #7
    Download a custom 3.1.2 unlocked ad activated ipsw then restore your iPhone to that one see if that worked.

  8. #8
    Can anyone help on this? I have the same problem.

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