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Thread: i get an error 21 when resoring to any OS even 4.0.2

  1. #1
    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; 2010-08-26 at 06:02 PM. Reason: Automerged Doublepost

  3. The Following User Says Thank You to jkmonkey For This Useful Post:

    juan334 (2010-08-26)

  4. #3
    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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