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Thread: 3GS 3.1 to 4.0?

  1. #1
    Default 3GS 3.1 to 4.0?
    The only blobs I have saved are from 4.0. I have the old bootrom. Am I stuck at 3.1? I tried updating from 3.1 to 4.0 since the 4.0 blobs are saved on cydia. I edited the host file on Windows 7 ( I can't find the host file on my mac and don't understand how to edit it). Any help please would be appreciated. Thanks!

  2. #2
    My iPhone is a Part of Me
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    I *think* you are required 3.1.2, I don't believe 3.1 will work.
    If I somehow helped you, press thanks

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    jamriman (2010-07-26)

  4. #3
    Quote Originally Posted by neodude237 View Post
    I *think* you are required 3.1.2, I don't believe 3.1 will work.
    Can anyone verify this? Thanks.

  5. #4
    Retired Moderator j3st3r's Avatar
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    with the old bootrom you will need to jailbreak it first and then you can go to any firmware that you choose by using custom firmwares, once you are jailbroken and have created the custom firmware that you want you will need to use shift+restore (pc) or option+restore (mac) to restore to that firmware, no host file editing needed with custom firmwares because they bypass the apple signing process, hope this helps you

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    jamriman (2010-07-26)

  7. #5
    Quote Originally Posted by j3st3r3 View Post
    with the old bootrom you will need to jailbreak it first and then you can go to any firmware that you choose by using custom firmwares, once you are jailbroken and have created the custom firmware that you want you will need to use shift+restore (pc) or option+restore (mac) to restore to that firmware, no host file editing needed with custom firmwares because they bypass the apple signing process, hope this helps you
    Many thanks. I did try that but I get the 3194 error while it's verifying with apple. What did I do wrong? Do I need to use an older version of iTunes perhaps?

  8. #6
    My iPhone is a Part of Me
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    Which firmware are you trying to verify? 3.1, 4.0, or 4.0.1?
    If I somehow helped you, press thanks

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    jamriman (2010-07-26)

  10. #7
    Quote Originally Posted by neodude237 View Post
    Which firmware are you trying to verify? 3.1, 4.0, or 4.0.1?
    Its on 3.1
    I figured I would try 4.0 since those are the only blobs on cydia. Thanks.

  11. #8
    My iPhone is a Part of Me
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    Try this:
    Restore iPhone 3GS to 3.1.2 Using SHSHs on File with Cydia | Windows
    except obviously for 4.0 instead of 3.1.2.
    If I somehow helped you, press thanks

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    jamriman (2010-07-26)

  13. #9
    Worked but don't know where I went wrong. Thanks to all!!

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