1. ivango711's Avatar
    If anyone can help me I would appreciate it! I am trying to upgrade my iPad 2 that is on 4.3.3 to 5.0.1. However, I keep getting error message 21 when I try to update or get error 1600 when I put iPad in DFU mode and try to restore from there. It is currently jailbroken, but I want to update it to 5.0.1 until the jail brake for that firmware comes out. Anyone? thnks...
    01-11-2012 02:50 PM
  2. Massie's Avatar
    If you've ever used Tiny Umbrella to save SHSH, open it, go to Advanced, and uncheck the "set hosts to Cydia on exit" box. Then restart your computer, open iTunes and try to restore again.

    (Sometimes it also helps if you download the ipsw you need separately, and then Shift/Restore to that already downloaded file.)
    01-11-2012 03:08 PM
  3. Garz's Avatar
    For whatever reason, this has been a common issue with people trying to restore from devices JB on iOS 4.3x. I also agree with what Massie stated to try and fix.
    01-11-2012 04:09 PM
  4. ivango711's Avatar
    Massie and garz thank you!! Will try to do that.. Will post my result.. Thanks!!
    01-11-2012 06:46 PM