Downgrade firmware on iPhone to 2.2.0

Posted on 2009-02-18
Last Modified: 2012-05-06
Hey guys,

I have an iPhone that was Jailbroken, unlocked, and mistakenly upgraded by a co-worker to firmware 2.2.1.  Can anyone tell me if it is possible (and if so how?) to downgrade firmware back to 2.2.0?  


Original question remains however if anyone has been successful at Jailbreaking the 2.2.1 firmware and could post the process of getting this done I will award points upon successfully completing that as well.  

Thanks everyone!
Question by:crphd
    LVL 7

    Accepted Solution

    Yes you can jailbreak 2.2.1 with quickpwn. And no I do not believe it is possible to downgrade.
    LVL 2

    Expert Comment

    In case you really want to to downgrade your iphone, check this video,-

    This video explains downgrading iphone from 2.2 to 2.1..but again, i think it should solve your problem.

    In case you wanted 2.2.1, you can get it from the following page,-

    Hope it helps!
    LVL 7

    Expert Comment

    I guess you can do that on the 2.0's. But this cant be done past v2.0 -> 1.0.

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