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Discuss iPhone 3G - 4.2.1 - No SHSH - Downgrade Possible? at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; Heya people. I got a iPhone 3G 4.2.1 firmware: 05.15.04 I do NOT have the ...
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    Arrow iPhone 3G - 4.2.1 - No SHSH - Downgrade Possible?

    Heya people.
    I got a iPhone 3G
    4.2.1
    firmware: 05.15.04

    I do NOT have the old SHSH saved, possible for me to downgrade back to 3.1.3? I wanna downgrade since iOS 4 really made my phone slow as hell.

    My phone is unlocked from my operator.

    I appreciate GOOD answers from people with knowledge.

    Thanks!



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    download the 3.1.3
    use RecBoot to enter Recovery Mode
    install the Firmware with iTunes
    iTunes will show u an Error 1015 (has to be 1015)
    just RecBoot out of Recovery
    and u got 3.1.3

    u can use Tiny Umbrella to Enter\Leave Recovery Mode..

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    Quote Originally Posted by TDMaster View Post
    download the 3.1.3
    use RecBoot to enter Recovery Mode
    install the Firmware with iTunes
    iTunes will show u an Error 1015 (has to be 1015)
    just RecBoot out of Recovery
    and u got 3.1.3

    u can use Tiny Umbrella to Enter\Leave Recovery Mode..
    Can this be done with Windows or do I need a computer with OSX?

    Thanks in advance TDMaster.

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    RecBoot/Tiny Umbrella got MAC and Windows Version

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    Got an error while using Recboot to enter recovery mode, can I do it manually with Power + Home button instead?


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    yes but u have to use RecBoot to get out of Recovery else u phone will be stuck on Recovrey Mode

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    Thanks TDMaster. My problem = solved.

    Rep added!

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    Sorry for bump, but does this work with the iPod touch 4?

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    Quote Originally Posted by birkawi View Post
    Sorry for bump, but does this work with the iPod touch 4?
    No. the iPod touch 4 checks SHSH in hardware, the iPhone 3G does not.

    You have more options to bypass SHSH checks on a 3G.

    The iPod touch 4 also can't run 3.1.3, so you are really jumping on the wrong thread.
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
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    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

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    Default Not working for me yet :-/

    I have the same setup as iPhone3gu

    iPhone 3G
    iOS 4.2.1
    firmware: 05.15.04

    Would very much like to downgrade.

    Have downloaded RecBoot and 3.1.3 firmware, however when I put my device into either DFU or recovery mode, it gives me this error message:

    The iPhone "iPhone" could not be restored because the firmware file is not compatible.

    Can anyone help?

    TIA

    HT


 

 
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