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Thread: Unlock iOS4 from version 3.1.2 or 3.1.3 upgrade

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I just got the 3GS from friend of mine (of course he got his new Iphone 4) but he did upgrade to iOS4 from 3.1.2 or 3.1.3 ( he couldn't
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  1. #1
    My iPhone is a Part of Me vietkool's Avatar
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    Default Unlock iOS4 from version 3.1.2 or 3.1.3 upgrade
    I just got the 3GS from friend of mine (of course he got his new Iphone 4) but he did upgrade to iOS4 from 3.1.2 or 3.1.3 ( he couldn't remember). Question is can I unlock this fone to work for T-mobile ?

  2. #2
    adp
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    If he has the old bootrom, yes.
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  3. #3
    My iPhone is a Part of Me vietkool's Avatar
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    How to identify old bootrom or new bootrom ?

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    adp
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    Go to settings, general, about. If the model number starts with an MC, you're out of luck.
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  5. #5
    My iPhone is a Part of Me vietkool's Avatar
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    I checked on one of my 3gs, runing 3.1.2 unlocked, the model show MC136LL, if I upgrade to version 4, will not be unlocked any more?

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    Livin the iPhone Life
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    no, you'd need to wait for a new jailbreak solution
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    vietkool (06-28-2010)

  8. #7
    adp
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    Yup. Don't be one of those with a $400 brick
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  9. #8
    What's Jailbreak?
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    Wat About An iPhone 3G With A "MB704LL" Does That sound upgradeable to iso4 den unlockable 4 tmobile?

  10. #9
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    any 3g can be unlocked
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