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Thread: Error 21 Attempting to Jailbreak a locked 2G - anyone help?

  1. #1
    Default Error 21 Attempting to Jailbreak a locked 2G - anyone help?
    Hello!

    Here's bit of a puzzle:

    \\ Mac OSX 10.5.6 (Automator-script-DFU re-enabled)
    \\ iTunes 8.02
    \\ AT&T "locked" 2G iPhone.
    \\ Pwnage Tool 2.2.5

    The iPhone will take any genuine Apple firmware restore I throw at it using iTunes (alt-click on Restore button, browse to firmware file 2.0.2, 2.1, 2.2 etc).

    But the phone won't ever take a "custom" firmware file generated by Pwnage tool. iTunes eventually complains with an "Error 21" shortly after starting to apply the custom firmware (any version).

    It's unlocking & activation I'm mostly interested in, at the moment after applying a stock Apple firmware iTunes tells me that the phone doesn't have a supported SIM card installed or, if I remove the SIM altogether that there's no SIM and I should slide one in.

    Is there any way I can check for certain that the USB-DFU fix has been applied? Maybe that's the problem. Should I try booting into VMWare (Windows XP) and running Pwnage / iTunes from there? Presumably the OSX 10.5.6 DFU situation then goes away...

    Thanks,

    Steve

  2. #2
    Delete device support file
    Create a new custom fw
    Put it into dfu mode
    If you take some errors,close itunes&re-open it
    Restore to custom fw...

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