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  1. #1
    Green Apple
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    Default i get an error 21 when resoring to any OS even 4.0.2

    i have a 3g on 3.1.3 just downgraded and jailbroken and trying to update and i keep getting an error 21 any idea

  2. #2
    Livin the iPhone Life jkmonkey's Avatar
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    From apple:
    Error 20, 21, 34, 37: These errors typically occur when security software interferes with the restore and update process. If you are using a PC, follow this article to resolve this issue.

    Try disabling your firewall.
    Last edited by jkmonkey; 08-26-2010 at 10:02 AM. Reason: Automerged Doublepost

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    juan334 (08-26-2010)

  4. #3
    Green Apple
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    well i read that but it wasnt that i was trying to restore in windows 7 and it gave me that error and i booted up winxp and now its restoring and updating fine thanks for the help

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