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  1. 03-20-2011, 10:13 PM #1
    baby9094
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    Default Downgrading from 4.2.1 to 4.0.1?

    Ok so I will admit that this stuff is all new to me so i have no clue what an "SHSH" is or any of the other high techy stuff that I have read. All I want to know is if I can downgrade my iPhone 3GS 4.2.1 to a 4.0.1 and if so please give me simple instructions.
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    SHaq1211 (03-22-2011)
  3. 03-25-2011, 10:45 AM #2
    Simon
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    First, Download tiny umbrella, connect your device, and press save SHSH. Whatever SHSH you are able to save are the firmwares you can restore to.
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« This might sound a little nooby but iv had a little idea | Downgrade Impossible »

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