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Thread: iPhone 3GS refuses to upgrade to 4.0.1

  1. #1
    Default iPhone 3GS refuses to upgrade to 4.0.1
    When I noticed the new jailbreakme method I decided I was going to upgrade my phone from 3.1.3 to 4.0.1 and then jailbrake it. I downloaded the iwsp, specifically iPhone2,1_4.0.1_8A306_Restore.ipsw, hit Control+Update and selected the ipsw. After about 2 minutes it gives me an error stating that my device isn't authorized to use the update.

    How do I fix this; is there anything I'm doing wrong?

  2. #2
    My iPhone is a Part of Me Trooper Sam's Avatar
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    First question...did you save your 4.0.1 SHSH?

    If the answer is no, then there will be no second question.

  3. #3
    Quote Originally Posted by Trooper Sam View Post
    First question...did you save your 4.0.1 SHSH?

    If the answer is no, then there will be no second question.
    Well no, but I never updated to 4.0.1; i'm still using 3.1.3.

    How do you save it? I'm still kinda new at this.

  4. #4
    Hey i have a similar problem to this but I get error message 13? i have my shsh blobs saved but now my phone is stuck in DFU mode?? i dont know what to do :S

  5. #5
    Okay I got it installing! This website helped me do it: Caching Apple's Signature Server - Jay Freeman (saurik)

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