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Thread: Downgrading from 4.0 to 3.1.3

  1. #1
    Exclamation Downgrading from 4.0 to 3.1.3
    Guys I am desperate!

    I have tried to jailbreak 4.0 using sn0wbreeze but when I download the ipsw file and extract it, it shows the folders but no files. I have tried a few different downloads and the same result. I know i'm missing something here!

    So then I thought i'd just downgrade the OS back to 3.1.3 but the exact same problem is happening.

    PLEASE tell me what to do and where im going wrong!

  2. #2
    Well which device do you have? 3G\3G[s]? if 3G[s] do you have BLOBS for 3.1.3?
    Press Thanks! If Its Worth It!

  3. #3
    Just delete the .zip from the end and it should change into the one file. At least, this is what I had to do a few days ago.

  4. #4
    Livin the iPhone Life Simtech's Avatar
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    You don't extract the ipsw, you rename the extension to .ipsw

  5. #5
    all sorted now i think, i jailbroke 4.0 but that does have its own seperate issues

    many thanks

    To anyone on a 3G, i would strongly recommend staying with 3.1.3 and upgrading to 4.0 as it cripples your phone! it slows it down so much its almost unusable.

    3GS users from what i have heard it works great on your phones! (i'm not at all envious about that, honest! even though i've spent 2 days upgrading, jailbreaking, reloading to just have to downgrade, rejailbreak and reload again!) lol
    Last edited by gillard01; 2010-07-01 at 03:12 PM. Reason: Automerged Doublepost

  6. #6
    i hava a 3gs that was jailbreak/unlock 3.1.2 via pwnage then i put it on recovery mode thinking that it was like the 3g but big mistake. this is a 3gs 32gb i think old bootrom according to serial number this one is week 27 . my question is Can i downgrade to 3.1.2 or 3.1.3 to put with tmobile. also in regard shsh i dont even knew about this crab til today reading lots of forums. please someone that can help me please lol

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