Need help jb iPhone 3GS 4.2.1

Discussion in 'iPhone' started by brendan90, Mar 10, 2011.

  1. brendan90 macrumors newbie

    Mar 10, 2011
    I have an IPhone 3GS with 4.2.1 firmware never been jailbroken. It has a new bootrom and 05.15.04 baseband. I do not want 6.15 baseband but I do not care if the jb is tethered or untethered. I want to use my AT&T network on my computer with the iPhone and I heard this was possible only after jailbraking. Is it and how would I do this on a pc?
  2. nukem170 macrumors member

    Feb 14, 2011
    Use GreenPois0n. It's untethered. I just did it yesterday. If your phone is already on At & T you dont need to unlock after jailbreaking. Good luck;
  3. canderton macrumors member

    May 25, 2010
    redsn0w works good, that's what I'm currently running my 3GS on and its still on the 4.2.1 firmware.. however mines an older 32GB, I've heard the newer 3GS's are a little trickier so it may not work as well for you.
  4. brendan90 thread starter macrumors newbie

    Mar 10, 2011
    thank you that worked with no problem. After all the bull i went through it only took about 10 minutes in the end. Thanks again.

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