iPhone JailBreaking and Unlocking 3GS

Discussion in 'Jailbreaks and iOS Hacks' started by NttDocomo, Oct 1, 2012.

  1. NttDocomo macrumors member

    Joined:
    Jul 8, 2010
    #1
    Hi everyone, I posted this earlier under the iPhone forum but was advised to post in here. Currently I would like to unlock my iPhone 3GS and it's currently on 4.0.1 (jailbroken and unlocked). Now I would like to upgrade it to 5.1.1 but I wonder if it's possible as I haven't saved it's 5.1.1 blob (only have up to 4.2.1 blob)?

    The phone is with modem firmware 05.13.04 and serial starting with 5K01901. Any help on what are the appropriate steps to get this jailbroken and unlocked on 5.1.1?

    Thanks for your comment as any help is always appreciated. Have a great evening :)
     
  2. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #2
    sorry too late for 5.1.1 if you don't have blobs.
     
  3. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #3
    You can jailbreak it and unlock it where you are at.

    Jailbreak

    Then install Ultrasn0w via Cydia
     
  4. NttDocomo thread starter macrumors member

    Joined:
    Jul 8, 2010
    #4
    Thanks for all comments, so basically I can't get the blob for 5.1.1 now and thus can't upgrade to 5.1.1 to jailbreak now?

    The 3gs will be stuck at 4.3 and can only be jailbreak and unlocked under that version?

    I was hoping if there's any way to upgrade, not having iOS 5 is a pain :(

    Please if there's any other way, let me know, any help is appreciated, have a great weekend.
     
  5. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
  6. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #6
    The only way you could is if your 3Gs is an old bootrom 3Gs. Those don't need SHSH blobs for the target firmware. But they are more difficult to find.
     
  7. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #7
    This is not true. The old-bootrom 3GS has the same signing requirements as the new-bootrom one. The only difference is that it is vulnerable to the 24Kpwn exploit.
     
  8. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #8
    The 24k exploit is able to remove the signing requirement so that the 3Gs can take unsigned SHSH blobs. I've gotten iOS 3.0.0 onto my old bootrom this way with one of the newer versions (May 2012+) of redsn0w.
     
  9. NttDocomo thread starter macrumors member

    Joined:
    Jul 8, 2010
    #9
    Thanks Intell and thelatinist, just wonder if you can tell me how to tell whether my 3gs has the old or new boot room? Thanks very much :)
     
  10. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #10
    Redsn0w can tell you. There's many other ways that can be found via Google. Also, I think the no SHSH old bootrom 3Gs thing was removed from redsn0w. I'm unable to find it in the current version or the iOS 6 version.
     

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