Downgrading 3.1-->3.0 on a 3GS

Discussion in 'Jailbreaks and iOS Hacks' started by Mikey B, Oct 3, 2009.

  1. Mikey B macrumors 65816

    Mikey B

    Jan 4, 2008
    the island

    In the past when I was running the 3.1 betas I was able to downgrade to 3.0 by restoring to 3.0 and running purplera1n when the 1015 error box pops up. I was curious if this is no longer possible. I haven't seen anyone talking about it and was wondering if something in the 3.1 GM changed to prevent this.

    Thanks for your input.

    EDIT: I imagine this wouldn't work because Apple is no longer signing 3.x?
  2. Moi un Mouton macrumors 68000

    Mar 18, 2008
    Bracknell UK
    Yes you're right, downgrade isn't possible unless you managed to store your phone's signature on Cydia while 3.0 was still being signed, so that Cydia can spoof being the Apple signature server

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