how to downgrade from 3.1 to 3.0 custom firmware?

Discussion in 'Jailbreaks and iOS Hacks' started by nikerocks, Oct 19, 2009.

  1. nikerocks macrumors newbie

    Oct 19, 2009
    hihi,total noob over here regarding jailbreaking.i have already jailbroken my iphone 3g with redsnow is an unlocked set with baseband of 5.11.07.i want to ask if i shift restore to custom firmware 3.1 and somehow my jailbreak is gone,how do i downgrade to 3.0 so that my phone can be jailbreak again?i understand redsnow only support up to 3.o right?
  2. swoosh0217 macrumors 6502a


    Nov 20, 2007
    Do the OPTION + RESTORE (On Mac) and pick the 3.0FW. Then it will give you an iTunes error (1015 or 1016). Download Quickpwn22-1. Once downloaded, connect your phone to your computer, open Quickpwn and there will be a small window that will prompt you to put your phone on a DFU mode (Press home and power button for 15 secs, let go of home button and still pressing the power button, do it for another3 secs). Then install Redsnow and install your 3.0FW

    Hope this helps...
  3. nikerocks thread starter macrumors newbie

    Oct 19, 2009

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