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Thread: Downgrade help

  1. #1
    Default Downgrade help
    im trying to downgrade from 1.1.2 to 1.1.1.
    Im trying to follow these instructions:

    but when i choose the ipsw file it gives me this error: An Unknown Error occured (1403).

    Am i suppose to be using itunes 7.4 for this method? I am on 7.5 so maybe that is the issue?

    ok thanks

  2. #2
    iPhone? More like MyPhone
    Join Date
    Sep 2007
    Thanked 20 Times in 14 Posts

    Download and run 1.0.2 firmware:

    It will solve the issue.

    To unlock your iPhone run the AGAIN for v1.0.2.
    Last edited by macky801; 2007-11-22 at 08:48 AM. Reason: Automerged Doublepost

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