I need help determining a 3Gs bootrom

Discussion in 'iPhone Tips, Help and Troubleshooting' started by amstrad, Jun 8, 2013.

  1. amstrad macrumors member

    Joined:
    Aug 6, 2009
    #1
    Hello,

    I can't figure what what Bootrom an iPhone 3Gs is running.

    When in DFU mode, here's what system profiler says : iBoot-359.3

    The model number starts with MC

    The serial number's first 5 characters : 5K111

    f0recast answers NO for Untethered?

    This iPhone was Jailbroken in order to be unlocked so it has iPad BB 06.15.00

    I'm trying to downgrade it to BB 05.13.04

    Thanks a lot
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    That's a new bootrom because it was made in 2011. The old bootrom was only made for a few months in 2009.
     
  3. amstrad thread starter macrumors member

    Joined:
    Aug 6, 2009
    #3
    I agree, both the serial number and the MC in the model number indicate that it's a new bootrom but i read that iBoot-359.3 means it an old bootrom.

    that's why i'm confused
     
  4. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #4
    You can use iDetector to verify if its new or old bootrom but like said above its the new one.
    ◦iPhone 3GS New BootRom [iBoot-359.3.2]
    ◦iPhone 3GS Old BootRom [iBoot-359.3]
     
  5. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #5
    The MB/MC model does not mean anything for a 3Gs. I have an old bootrom MC model and have seen new bootrom MB models.
     
  6. amstrad thread starter macrumors member

    Joined:
    Aug 6, 2009
    #6
    According to iDetector, the iPhone contains Old Bootrom ..

    So on one hand :
    iDetector & System profiler [iBoot-359.3] = Old Bootrom

    On the other :
    Model number and Serial number = New Bootrom

    Is this crazy or what ?
     
  7. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    Ok good, so you have the old bootrom then.
    Its not unheard of like intell said. It happens.
     
  8. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #8
    It is possible that the iPhone is a refurbished one that was given a new serial number.
     
  9. amstrad thread starter macrumors member

    Joined:
    Aug 6, 2009
    #9
    Ok, so i'll go with what iDetector and the system profiler say

    Thanks a lot for the time you took to reply guys !
     

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