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  1. anwarica's Avatar
    Hi everyone,

    I have an iphone 3gs on firmware 3.1.3 jailbroken with spirit.
    the modem firmware is 05.12.01 ... i dont know if that makes it new or old bootrom
    anyway i wanted to know if i could upgrade it to a jailbroken 4.0.1 firmware

    thanks in advance
    2010-07-19 12:23 AM
  2. cdavid108's Avatar
    I'm in the exact same boat with my 3gs. Same modem firmware and 3.13. Can someone please answer? I'd really appreciate it too!

    2010-07-21 02:51 AM
  3. cdavid108's Avatar
    Up... Anyone?
    2010-07-26 05:26 AM
  4. L00i3's Avatar
    As far as what I have seen, you can not upgrade a Spirit jailbroken phone to a pre-jailbroken firmware. If you want to stay jailbroken, just leave your phone alone until a new Spirit or other jailbreak solution is released for 4.0/4.0.1
    2010-07-26 11:19 AM