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Thread: NO SERVICE on iPhone 3G 3.1.2 baseband 05.12.01

  1. #1
    Unhappy NO SERVICE on iPhone 3G 3.1.2 baseband 05.12.01


    I have an iPhone 3G. I connected my phone to iTunes and it updated my iPhone to 3.1.3 without my consent! So I downgraded it to 3.1.2 using blackra1n. But the baseband cannot be downgraded, so I got 05.12.01.

    My phone shows "No Service". This hasn't happened before the jailbreak (this SIM card is the one which goes for this phone and don't need to unlock). But I am unable to phone or text.

    Can anyone help?

  2. #2
    My SIM was usually activated through connecting to iTunes.
    Just make sure that your iTunes isn`t set to Auto download and install updates.

    Also, I have heard that the new release of iTunes (v9.1 I believe) can have a bad effect for JBers, so make sure you don't update iTunes and that you have a version less than 9.1
    Last edited by sabersurfer; 2010-03-31 at 05:33 AM. Reason: Automerged Doublepost

  3. #3
    What's Jailbreak?
    Join Date
    Dec 2007
    Location
    London, UK
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    Hi there,

    Have you found a solution?

    I'm in the same situation, does this mean we have to wait for an update (4.0?)

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