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Thread: How to Downgrade iPhone 3G iOS 4 to 3.1.2

  1. #1
    Default How to Downgrade iPhone 3G iOS 4 to 3.1.2
    I hate iOS 4! I've been searching for ways to downgrade back to 3.1.2. I think this guide looks good, but will I lose all of my MMS, numbers, apps, etc?

    This guide gives an extra set of instructions at the end, which explains that you can after downgrading, choose a backup! woo hoo. about to start the process...
    Last edited by iraethan; 2010-07-07 at 06:20 AM. Reason: Automerged Doublepost

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    KuRuPtIoN (2010-07-08)

  3. #2
    My iPhone is a Part of Me
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    Well the backup you restore from must be FW 3.1.3 or earlier. It won't restore and iOS4 backup to a 3.1.3 device.

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