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  1. #1
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    Question How-to? Upgrade 3GS iOS 4.1 JB to iOS 5 JB

    Hi!


    I have an iPhone 3GS 32gb:


    Modem Firmware: 06.15.00
    Model: MC133B
    Serial Number: **9425S13**


    The phone is currently jailbroken and unlocked at iOS 4.1 (8B117).


    How can I upgrade the phone to iOS 5.X, to a untethered-jailbreak-ready and unlock-ready state?


    I have tried an iTunes standard update on a dozen different computers but I always get some sort of error; usually 'this device is not eligible'.


    Please help!


    Thanks,


    Francis Drake



  2. #2
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    Unless you have your SHSH blobs saved for the firmware you are trying to restore, you will not be able to restore an older firmware.
    White iPhone5(CDMA) - iOS 6.1.2 - Jailbroken with Evasi0n 1.5
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    Have a jailbreaking/unlocking question? Ask me
    Forum Rules Here(PLEASE READ!) iPhoneForums staff

  3. #3
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    Thanks for replying, but why would I want to restore an older firmware? I mean, I am trying to upgrade, right?

    Quote Originally Posted by Jmills87 View Post
    Unless you have your SHSH blobs saved for the firmware you are trying to restore, you will not be able to restore an older firmware.

  4. #4
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    Any firmware other than 5.1.1(which does not have an untethered jailbreak) is considered older firmware.
    White iPhone5(CDMA) - iOS 6.1.2 - Jailbroken with Evasi0n 1.5
    ---------------------------------------------------------
    Have a jailbreaking/unlocking question? Ask me
    Forum Rules Here(PLEASE READ!) iPhoneForums staff

  5. #5
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    Quote Originally Posted by Jmills87 View Post
    Any firmware other than 5.1.1(which does not have an untethered jailbreak) is considered older firmware.
    I get it! Thanks!

    So (if I sacrifice and go untethered) what is the procedure in upgrading to 5.1.1 in my case?

  6. #6
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    To upgrade to 5.1.1 you would first need to make a custom firmware(which Im not even sure there is a tool to make a custom 5.1.1 firmware yet) and then you would need to shift+restore it in iTunes.
    White iPhone5(CDMA) - iOS 6.1.2 - Jailbroken with Evasi0n 1.5
    ---------------------------------------------------------
    Have a jailbreaking/unlocking question? Ask me
    Forum Rules Here(PLEASE READ!) iPhoneForums staff

  7. #7
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    Use Shift+Restore and upgrade in DFU mode from iTunes after downloading the custom IPSW firmware file.


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