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Thread: Help with 3GS from 3.0 to latest firmware....

  1. #1
    Default Help with 3GS from 3.0 to latest firmware....
    So i just bought an unlocked and jailbroken iphone 3gs. it works great but i want to be updated.... so i usually buy iphone 2Gs because they can be easily unlocked. but i decided to treat myself to the 3gs now that everyone is selling them to buy the 4g. i tried upgrading the firmware to 3.1.2 but itunes keeps saying that i can not. so i'm kind of stumped as to what direction to go from now. i know it can be done i just don't know how. i've tried looking but no one seems to have a similar problem. any help would be appreciated. i am using windows* i've been used to unlocking 2Gs that i dont know what to do with these 3GSs. thanks.

  2. #2
    Retired Moderator iYeow's Avatar
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    Feb 2008
    Vancouver, Canada
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    Download snowbreeze from and create a cfw 3.1.3 and then do a restore to it. You will be able to unlock with Ultrasn0w again.
    Last edited by iYeow; 2010-06-17 at 02:23 AM.

  3. #3
    thanks. thats what i had thought but with that custom firmware would i still be able to keep the old baseband to be able to unlock the phone?

  4. #4
    Retired Moderator j3st3r's Avatar
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    Mar 2008
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    Yes, you could also google and download a 3.1.2 or 3.1.3 ipsw created with pwnagetool and restore to that, either way using a custom firmware will preserve your baseband for an easy unlock

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