[HELP] How to downgrade from 4.2.1 to 4.1 Baseband 06.16.00 [3GS]

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Ilyass, Feb 4, 2011.

  1. Ilyass macrumors newbie

    Jan 31, 2011
    Hello !!
    Right now, i have iOS 4.2.1 Jailbroken and Unlocked with baseband updated 06.16.00, but the only problem is this jailbreak tethered, so i want to downgrade the iOS from 4.2.1 to 4.1 with untethered Jailbreak
    btw i have SHSH saved
    please, i really need a full tutorial how to do this!!!
    Thanks in advance
  2. Ilyass thread starter macrumors newbie

    Jan 31, 2011
  3. PsstGreek macrumors 68040


    Oct 21, 2010
    Tampa Bay
    The new just released GreenPois0n will untether your 3GS. No need to downgrade.

Share This Page