Iphone 3GS 6.15 baseband downgrade?

Discussion in 'Jailbreaks and iOS Hacks' started by jay12, Jan 9, 2011.

  1. jay12 macrumors member

    Joined:
    Nov 5, 2010
  2. maturola macrumors 68040

    maturola

    Joined:
    Oct 29, 2007
    Location:
    Atlanta, GA
    #3
    If you mean to downgade the baseband itself it is not possible. If you mean downgrade a phone that is running that baseband them all you need is a custom firmware cooked with pwnage tool
     
  3. jay12 thread starter macrumors member

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    Nov 5, 2010
    #4
    Pretty sure musclenerd said he is working on a baseband downgrade??:confused:
     
  4. maturola macrumors 68040

    maturola

    Joined:
    Oct 29, 2007
    Location:
    Atlanta, GA
    #5
    My understanding is that they are working on "Skipping" the new baseband "check" that was implemented on 4.2.1, I haven't seen anything about BB downgrade, since it is very hard, the BB upgrade use a similar SHSH check as the firmware without that key is close to impossible to do it and those SHSH haven't been found yet. I really doubt that with all the work on the unlock and untethered JB that is going on they are expending any time in such a hard task.

    But them again maybe I just missed that, if you got a source please link it.
     
  5. MaxBurn macrumors 65816

    MaxBurn

    Joined:
    Nov 25, 2010
    #6
    I think there was a misunderstanding and the baseband downgrade was the one for the old boot 3G, that is out.
     

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