Downgrading unactivated iPhone from 3.1 -> 3.0.1 for unlocking

Discussion in 'Jailbreaks and iOS Hacks' started by miavfw, Oct 2, 2009.

  1. miavfw macrumors newbie

    Oct 2, 2009
    NewB here...

    So, I have inherited a 2G iPhone that the previous owner has "factory reset" before giving it back to me. I assume that it has the latest 3.1 firmware on it and to unlock / jailbreak it using RedSn0w I need to downgrade it to 3.0.1.

    I've read the instructions on how to do this in iTunes (shift click on Restore and point to the right ipsw file which I have downloaded), BUT... when I connect my iPhone to iTunes, iTunes won't let me do anything unless there is a SIM card in the phone, and if I put my AT&T SIM card, it wont let me do anything until I activate the phone (which I don't really want to do on my account yet).

    Any suggestions?


  2. darngooddesign macrumors G3

    Jul 4, 2007
    Atlanta, GA
    You can JB a 3.1 2G phone using PwnageTool on the Mac.
  3. miavfw thread starter macrumors newbie

    Oct 2, 2009
    Ah... I wish... Strictly Windows household here... I could build a hackintosh, but that's a lot of trouble just to unlock an iPhone :eek:
  4. miavfw thread starter macrumors newbie

    Oct 2, 2009
    Never mind... I got it...

    The trick is to put the iPhone in "restore mode" (the power + home buttons press sequence), then connect to iTunes. iTunes will come up with a message saying your phone is in restore mode, from there, just do a shift + click on restore and pick your firmware version.

    It's "downgrading" right now, but it's looking good so far.


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