iphone 4 update firmware question?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by xxtra, Jul 28, 2010.

  1. xxtra macrumors member

    Joined:
    Jun 24, 2010
    #1
    if I update to the 4.0.1 version, can I still go back to 4.0?
     
  2. ryno2292 macrumors member

    Joined:
    Jul 7, 2010
    #2
    If you saved SHSH blobs before Apple quit signing 4.0 yes.
     
  3. xxtra thread starter macrumors member

    Joined:
    Jun 24, 2010
  4. ryno2292 macrumors member

    Joined:
    Jul 7, 2010
    #4
    No problem, I think that's the only way to do it. I upgraded to 4.0.1 myself then went back to 4.0, no difference other than the bar display/calculation as far as I noticed.
     
  5. xxtra thread starter macrumors member

    Joined:
    Jun 24, 2010
    #5
    Can I restore from 4.0 to 4.0 in itunes if I mess up my phone?
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #6
    No, you cannot restore any i4 or 3GS model to anything but the latest firmware thats currently out. Unless prior to that you saved your SHSH's locally or on cydias server.
     

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