Is preserving an old-BR 3GS' BB now pointless?

Discussion in 'Jailbreaks and iOS Hacks' started by The Mad Hatter, Apr 17, 2012.

  1. The Mad Hatter macrumors 6502a

    The Mad Hatter

    Joined:
    Oct 12, 2004
    Location:
    SoCal
    #1
    I have 2 old-bootrom 3GSs that have been AT&T unlocked.

    My question is, do I still need to worry about doing a custom IPSW?

    I was only preserving the original BB for these in order to use them abroad, or for resale value. So now I should be able to upgrade my JB to 5.1 with an unaltered IPSW file, right?

    Just wanted some info before I possibly F'up these phones, and can't go back. :D

    TIA
     
  2. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #2
    The only reason to preserve baseband was to have a baseband that Ultrasn0w could unlock.
    If you have the IMEI unlock, preserving baseband is no longer required.
     
  3. Kyotoma macrumors 68000

    Kyotoma

    Joined:
    Nov 11, 2010
    Location:
    Carnegie and Ontario
    #3
    You should have no problem upgrading to stock firmwares and then jailbreaking. So long as you don't have the iPad BB installed you can go to complete stock then directly to untethered via redsn0w.
     
  4. The Mad Hatter thread starter macrumors 6502a

    The Mad Hatter

    Joined:
    Oct 12, 2004
    Location:
    SoCal
    #4
    Thanks for the info guys...

    I just wanted confirmation before I updated these phones.
     
  5. terraphantm macrumors 68040

    Joined:
    Jun 27, 2009
    Location:
    Pennsylvania
    #5
    With a factory unlock, preserving the baseband would only be useful if you're a hacker (or "security researcher") since having a working exploit could help you learn more about how the baseband works with everything else.
     

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