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Discuss Cannot turn on 3G at the Ultrasn0w (3G(S)/iPhone 4 unlock) - Hackint0sh.org; Hi, I have an iPhone 3GS, and I have successfully unlocked it using Ultrasnow. The ...
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    Default Cannot turn on 3G

    Hi, I have an iPhone 3GS, and I have successfully unlocked it using Ultrasnow.

    The thing is, everytime I turn on 3G, the phone just loses its signal completely. Is it because the unlock does not support 3G or have I done something wrong? If so, how do I remedy it?

    Also, ever since the unlock, the "cellular data network" bit is gone, thus, can no longer change the APN, username and password for use on a different carrier.

    Any ideas?

    Thanks everyone!
    Last edited by arthertbc0702; 07-14-2009 at 02:07 PM.



  2. #2
    Peanut Brain Array Confucious's Avatar

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    What carrier are you using it on?
    He who asks a question looks foolish for 5 minutes. He who doesn't ask a question remains foolish forever.

    iPhone 4 locked to T-Mobile. 4.1 Limera1n'd

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    Default

    I have the some problem too, my iPhone 3gs was jailbroken with Redsn0w 0.8 and unlocked with Ultrasn0w 0.9. 2G network works perfectly, but The signal turns to "no service" as soon as I enable 3G.

    I'm think of restoring it and redo the process again.
    Btw, is it itune restore good enough to restore the iPhone back to the original state or I need to run some customized tools to re-virginize it.

    Thanks!

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    Peanut Brain Array Confucious's Avatar

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    iTunes restore is fine. Just make sure you set up as a new phone and don't then 'restore' a backup.
    He who asks a question looks foolish for 5 minutes. He who doesn't ask a question remains foolish forever.

    iPhone 4 locked to T-Mobile. 4.1 Limera1n'd

 

 

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