How to jailbreak iPhone 3GS with old bootrom?

Discussion in 'Jailbreaks and iOS Hacks' started by TrumpetH4X, Jul 1, 2010.

  1. TrumpetH4X macrumors newbie

    Joined:
    Dec 7, 2008
    #1
    Hey, I'm sort of a newbie, so bear with me

    I've been looking for a way to jailbreak my iPhone 3GS, running iOS 4.0 with the old bootrom.

    Is there a way to jailbreak iOS 4.0 on my 3GS without doing a sort of "jailbreak train" from OS 3.1.2?

    if not, would any of you help me with a way to jailbreak iOS 4.0?

    I'm trying to maximize my selling potential on Ebay to purchase a new iPhone 4 ;)

    THANKS!
     
  2. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #2
    Once on iOS4 you cannot jailbreak a 3GS, you must downgrade to 3.1.2 or 3.1.3 which requires SHSH blobs.
     
  3. rmb7984 macrumors regular

    rmb7984

    Joined:
    Apr 1, 2008
    Location:
    Tampa, FL
    #3
    My understanding is that you're probably out of luck right now. I don't think there's a way to jailbreak unless you are currently jail broken on 3.1.3 or lower. And for you, the only way to do that is to downgrade - but to downgrade you have to have been jailbroken before - thus the catch 22.

    Sit tight, there may be a way to do it soon, but I think it's impossible now.
     
  4. TrumpetH4X thread starter macrumors newbie

    Joined:
    Dec 7, 2008
    #4
    Sorry for my confusion,

    but #1 what exactly are SHSH blobs?

    #2, It's impossible for me to downgrade to OS 3.1.2/3? That sucks... :(

    I'm holding out for the white iPhone 4, which is supposed to be retailing sometime this month to my understanding.

    I just want to be able to sell a "JAILBROKEN UNLOCKED iOS 4.0" 32gb 3GS on Ebay, if you catch my drift ;)
     
  5. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #5
    As said, for now you are stuck. You should not have upgraded if you wanted to jailbreak and unlock.
     
  6. TrumpetH4X thread starter macrumors newbie

    Joined:
    Dec 7, 2008
    #6
    Aw, sucks man.

    Thanks for the tips anyhow.

    I wasn't aware that you couldn't jailbreak iOS 4.0 yet on 3Gs'es...
     
  7. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #7
    Not once you have already installed it, must be done during the upgrade.

    NEVER update the firmware on a phone until the tools are released for JB/UL
     
  8. laz305 macrumors regular

    Joined:
    Jul 24, 2007
    Location:
    Miami
    #8
    I'm on 3GS 3.1.3 Old Bootrom with Spirit JB, is there a guide up yet to help me JB to 4.0 CFW?
     

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