Anyone have success in downgrading back to 3.1.3 from 4.0?

Discussion in 'Jailbreaks and iOS Hacks' started by z400central, Jun 16, 2010.

  1. z400central macrumors regular

    Nov 8, 2006
    Thinking of putting 4.0 on my 3GS but I'm also selling my phone next week (Jailbroken 3.1.3) - so want to make sure I can revert back to the old OS.

  2. dhlizard macrumors G4


    Mar 16, 2009
    The Jailbreak Community
    Why if you plan to restore next week. Plus 4.0 will update the baseband which doesn't revert or downgrade.
  3. Martinsalas310 macrumors regular

    May 13, 2010
    Nampa, idaho
    downgrade by putting iphone into recovery mode and pressing alt+click and clicking 3.1.3 then when u get error 1015 just use a program called recboot to kick ur phone off recovery mode and voila u have 3.1.3 i just did it 2 days ago i ddnt like 4.0

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