iOS 4.0 Jailbreak Iphone 3GS

Discussion in 'iOS Jailbreak & Cydia' started by brocher, Jun 30, 2010.

  1. brocher

    brocher Member

    Joined:
    Dec 31, 2009
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    Device:
    iPhone 4 (Black)
    I have the IPhone 3GS, 3.1.3(7E18). Jailbroken with Spirit. Model MC131B, with 05.12.01.

    Can this be safely upgraded to iOS 4 and then jailbroken again, if so can someone point me in the right direction?
  2. dude245

    dude245 Member

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    Device:
    iPhone 5 (Black)
    If its new bootrom NO, if its old you can use pwnagetool or sn0wbreeze to make a custom 4.0 ipsw
  3. brocher

    brocher Member

    Joined:
    Dec 31, 2009
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    Device:
    iPhone 4 (Black)
    My bootrom is 359.3
    Am i able to do this
    What is the best JB software to use?

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