Stuck in iPhone restore: Errors 21 and 1600

Discussion in 'iPhone Tips, Help and Troubleshooting' started by farzan, Jan 11, 2013.

  1. farzan, Jan 11, 2013
    Last edited: Jan 11, 2013

    farzan macrumors newbie

    Jan 11, 2013
    I've got an iPhone 4 running iOS 5.0.1. I tried updating to 5.1.1 but it said my iPhone was eligible for such update. I tried editing my hosts file and running TinyUmbrella but didn't solve the problem. I now get iTunes error 11, and when I put the iPhone in pwned DFU and use my custom made IPSW I get error 1600. I tried restoring back to 5.0.1 but still the same problem... Please help!
  2. PsstGreek macrumors 68040


    Oct 21, 2010
    Tampa Bay
    Do you have the SHSH saved for 5.1.1?
  3. farzan thread starter macrumors newbie

    Jan 11, 2013
    Yes I have. BTW, my iPhone is jailbroken.

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