iPhone Baseband Upgrade Possible??

Discussion in 'Jailbreaks and iOS Hacks' started by applemessiah, Jul 14, 2012.

  1. applemessiah macrumors member

    Joined:
    Jul 8, 2011
    #1
    I have an iphone 3gs 32gb. Baseband 5.16.05 serial #86951QU13NR
    Is it possible to upgrade to 6.15.00 and unlock via ultrasnow? i have unlocked many iphones and want to make sure before i ruin a board. thanks in advance
     
  2. Intell macrumors P6

    Intell

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    Jan 24, 2010
    Location:
    Inside
  3. applemessiah thread starter macrumors member

    Joined:
    Jul 8, 2011
    #3
    is that possible? i have downgraded the 6.15.00 to 5.13.04 but thought only that an iphone with 6.15.00 was downgradable...if thats the case, then would that mean that ANY iphone 3gs is downgradable and unlockable?
     
  4. Intell macrumors P6

    Intell

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    Jan 24, 2010
    Location:
    Inside
    #4
    Pretty sure any 3Gs baseband is downgradable.
     
  5. applemessiah thread starter macrumors member

    Joined:
    Jul 8, 2011
    #5
    i just tried to downgrade and unfortunately redsnow did not flash the baseband. i clicked on appropriate checkbox and no go. might try again tomorrow.
     
  6. rrandyy macrumors 6502

    Joined:
    Jan 14, 2009
    #6
    I don't think you can downgrade the baseband. At least you can't on the iPhone 4.
     
  7. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    He's asking about a 3GS, you're replying about an i4.
     
  8. rrandyy macrumors 6502

    Joined:
    Jan 14, 2009
    #8
    No, I replied about his 3GS: "I don't think you can." Then I qualified my response so that he understands what the source of my information is based on.
     
  9. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #9
    You can downgrade the 3gs BB with redsn0w, feature has been around for about 2 months
     
  10. applemessiah thread starter macrumors member

    Joined:
    Jul 8, 2011
    #10
    Sorry I don't think it's possible although I wish it was. The option on redsnow is only for Iphone 3GS/3G that were previously upgraded to 6.15.00. If downgrading any 3GS were possible, then that would mean that all 3GS are unlockable.
     
  11. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #11
    Your 3GS can be downgraded so Ultrasn0w unlock will work.

    Go here
     
  12. applemessiah thread starter macrumors member

    Joined:
    Jul 8, 2011
    #12
    I have been to devteam blog. I can't find anything that says 5.16.05 can be downgraded straight to 5.13.04. If I tried to upgrade to 6.15.00 first then my baseband will fry since my iPhone was produced after week xx138...
     
  13. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #13
    According to the serial number you posted, your phone was made the 51st week of 2009. :rolleyes:
    (86951)

    Otherwise, none of us would have recommended you try the baseband downgrade.
     
  14. applemessiah thread starter macrumors member

    Joined:
    Jul 8, 2011
    #14
    I apologize. I guess I need to get better at decoding serial numbers :/ I thought since it was xx951 that it was over the 135 limit set by redsnow. I will remember future reference. Thanks for the help guys.
     

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