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Thread: help upgrading 3gs 3.1.3 5.12.01 to 4.2.1 error while restoring in itunes error 3194

  1. #1
    Default help upgrading 3gs 3.1.3 5.12.01 to 4.2.1 error while restoring in itunes error 3194
    help upgrading 3gs 3.1.3 to 4.2.1 error while restoring in itunes error 3194

  2. #2
    Livin the iPhone Life
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    Do you need an unlock?
    If yes, Stop. What is the modem firmware version? Settings/General/About/Modem Firmware?

    If an unlock is not needed, continue ...
    Error 3194 "Occurs when trying to install an old firmware and Apple's server disallows the installation."
    iTunes Errors - The iPhone Wiki

    To (maybe) bypass this error, download & run Tiny Umbrella, connect the device, go to Advanced tab, uncheck 'get from Cydia', then Save SHSH, wait until its finished, check 'get from Cydia', then Save SHSH.
    Now look in the General tab. What is listed?

    Is 4.2.1 listed? If yes, you can restore to 4.2.1.
    ..From Tiny Umbrella, select start TSS Server.
    ..Check for no errors and TU server is running.
    ..From iTunes, shift/select 4.2.1 iOS firmware to restore the device.
    ..Insert you authorized SIM to activate.
    ..Done

    If 4.2.1 is not listed: You can not restore to 4.2.1.

    Note: Links are in my signature below.

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