How to upgrade and Jailbreak iOS 4.0 from 3Gs 3.1.3 ??

Discussion in 'Jailbreaks and iOS Hacks' started by asdf212, Jul 11, 2010.

  1. asdf212 macrumors regular

    Joined:
    Feb 9, 2010
    #1
    I have an iPhone 3gs 3.1.3 which I would like to upgrade to iOS 4.0 however, I would like to either keep or re-jailbreak the phone. Is this possible yet??

    Thanks
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
  3. ACardAttack macrumors 6502

    ACardAttack

    Joined:
    Mar 18, 2010
    #3
    If you have old bootroom you can, there is a thread talking about it, if you have new boot room you cant.
     
  4. asdf212 thread starter macrumors regular

    Joined:
    Feb 9, 2010
    #4
    I think it is the old one.. How would I go about doing this if I wanted to try? Would I just use Spirit?
     
  5. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #5
    If its old bootrom you can use spirit to JB it on 3.1.3
    Then install spirit2pwn from cydia from the repo http://repo.woowiz.net. Then you can restore to custom 4.0 IPSW created with pwnage.
    And there you have it a JB 3GS or 4.0
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #6

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