HELP! Updated to iPhone 4.1 and cannot activate

Discussion in 'Jailbreaks and iOS Hacks' started by sfiphoneguy, Jul 23, 2010.

  1. sfiphoneguy macrumors newbie

    Jul 23, 2010
    Hi everyone. I downloaded a developer version of iOS 4.1 and installed the updated on my iPhone. iTunes will not activate the iPhone because it is not registered with the developer program.

    Is there any way for me to go back? i can't do anything since iTunes won't let me proceed.

    Attached Files:

  2. lavrishevo macrumors 68000


    Jan 9, 2007
    Try a DFU mode restore to 4.0.1

    Plug phone into computer, turn phone off, hold power + home for exactly ten seconds (screen should remain black) release power button but continue to hold home until iTunes display message that it detects a phone in recovery mode.

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