How to restore jailbroken iphone 3gs 4.3.3 to fresh 5.1.1?

Discussion in 'iPhone' started by Koopsy, Jul 11, 2012.

  1. Koopsy macrumors newbie

    Jul 11, 2012
    I have an jailbroken iphone 3gs on 4.3.3 and i want to upgrade it to 5.1.1 but whenever i try, i got error 21 and error 1600. Ive asked some other forums and i kept on going in loops. I hope thos forum could resolve my problem. Thanks in advance and any reply would be appreciated. Thanks!
  2. PsstGreek macrumors 68040


    Oct 21, 2010
    Tampa Bay
    Do you have the iPad baseband on your iPhone?
  3. Koopsy thread starter macrumors newbie

    Jul 11, 2012

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