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Discuss Downgrading iPod Touch 2G at the iPod Touch 2G - Hackint0sh.org; Hello, I'm currently in the search for a method that allows me to downgrade from ...
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    Default Downgrading iPod Touch 2G

    Hello, I'm currently in the search for a method that allows me to downgrade from 4.2 to 4.0. But it doesn't seem to be possible without pre-saved SHSH blobs. Seeing as I didn't collect these blobs at the time, I struggle to find a method around this.

    Can anyone confirm that the only way to downgrade is by having saved the SHSH-blobs?

    If not, would a custom fw of 4.0 work? I'm getting all these 1600-errors. Would iReb fix this for me?

    Thanks in advance
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    Default

    The iPod touch 2G doesn't validate SHSH blobs.
    You should be able to use pwned DFU mode with an original IPSW to bypass the iTunes checks and downgrade to 4.0

    Don't trust iREB - it mostly just hides the real problem.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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