Unlock 3GS on 4.2.1 baseband 5.13.04

Discussion in 'Jailbreaks and iOS Hacks' started by sh0tt, Dec 26, 2010.

  1. sh0tt macrumors newbie

    Joined:
    Jan 17, 2010
    #1
    I successfully installed 4.2.1 on my 3GS while keeping my baseband at 5.13.04 using the Dev team's instructions here. How do I now jailbreak and unlock my 3GS keeping my baseband?

    EDIT: When I point redsn0w to the custom firmware that pwnage tool created for 4.2.1 it doesn't recognize it. Should I point redsn0w to the original 4.2.1 firmware?

    Thanks in advance and happy holidays!
     
  2. MaxBurn macrumors 65816

    MaxBurn

    Joined:
    Nov 25, 2010
    #2
    Yes. If you don't have it already you have to go get it for redsn0w to work.

    Happy holidays means the terrorists win, Merry Christmas :D
     
  3. sh0tt thread starter macrumors newbie

    Joined:
    Jan 17, 2010
    #3
    Ok, I've download the original 4.2.1. Redsn0w asks me if I have the newer (fixed) model. According to my serial number my iPhone was made week 47 so should I press yes or no (since I have the 5.13.04 baseband).

    Just trying to be precautious so I don't lost my baseband.
     
  4. MaxBurn macrumors 65816

    MaxBurn

    Joined:
    Nov 25, 2010
    #4
    Verify your boot rom with iDetector.

    Not sure if bad things happen if you do the wrong one in redsn0w.
     
  5. Myzhi macrumors 6502a

    Joined:
    Dec 15, 2009
    #5
    How did you update to 4.2.1 and kept the baseband? Didn't you update using a custom firmware file (one that keeps the baseband)?
     
  6. sh0tt thread starter macrumors newbie

    Joined:
    Jan 17, 2010
    #6
    OK, I do have the new bootroom, but I've run into a problem. I ran redsn0w all the way through and I appears as though it finishes smoothly, but the cydia icon on my 3GS is white and crashes immediately upon launch.
     
  7. sh0tt thread starter macrumors newbie

    Joined:
    Jan 17, 2010
    #7
    Followed Dev Team's instructions and used their custom bundle with pwnage tool to create a custom 4.2.1 ipsw that I used in iTunes to ugrade the os to 4.2.1, but keep my current baseband of 5.13.04.
     
  8. MaxBurn macrumors 65816

    MaxBurn

    Joined:
    Nov 25, 2010
    #8
    Well done, I think you are good.

    With new bootrom you are tethered jailbreak so just rerun redsn0w and use the just boot just boot tethered right now option.
     
  9. sh0tt thread starter macrumors newbie

    Joined:
    Jan 17, 2010
  10. MaxBurn macrumors 65816

    MaxBurn

    Joined:
    Nov 25, 2010

Share This Page