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Thread: How To Upgrade 3.1.3 to OS4 ???

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    Question How To Upgrade 3.1.3 to OS4 ???
    Can anybody tell me if this is possible, to upgrade from 3.1.3 to a jailbroken OS4. I have followed a few links from this site IE
    How to Jailbreak 4.0 iPhone 3G/iPod Touch 2g on OS X/Windows
    but it does nothing, goes through the motions but when my phone reboots its back to 3.1.3 ???
    Cheers
    PAul

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    Retired Moderator Poseidon79's Avatar
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    The jailbreak doesn't upgrade your firmware. You have to restore to 4.0 (or 4.0.1) in iTunes first. After that use redsn0w 0.9.5 and point it to the 4.0 firmware file to jailbreak. This is all assuming you have an iPhone 3G.

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  5. #4
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    Iphone 3G running 3.1.3

    So i am right in thinking i'm ok to let Itunes upgrade me to OS4 first?
    Before i used to get all my stuff from iPhone Unlock UK - 1 Click iPhone 3G/3GS iOS 4 Software Unlock guaranteed before i was told its just a rip off. They used to say never upgrade through itunes??
    cheers
    Paul
    Last edited by gammaphile; 2010-07-26 at 08:55 AM. Reason: Automerged Doublepost

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    My iPhone is a Part of Me
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    Never upgrade via itunes is true of some JB's (and current 3GS one's in fact) howver a 3G redsn0w will sort you right out. Upgrade to stock iOS4.0.1 and run redsn0w to JB. Go to Redmond Pie and search Jailbreak 3G iOS4.0.1 if you want a guide.

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