1. whitewuf's Avatar
    Anyone knows how to unlock iphone 3G v 2.2.1 (5H11) modem firmware 02.30.03?

    Also, upgrade to 3.0???
    06-08-2009 12:19 AM
  2. Neutrino's Avatar
    Anyone knows how to unlock iphone 3G v 2.2.1 (5H11) modem firmware 02.30.03?

    Also, upgrade to 3.0???
    If I'm not mistaken, you can use yellowsnow from Cydia to unlock 2.2.1 once you've already jailbroken your iPhone.

    If you upgrade to OS 3.0 (even beta), you will end up flashing your baseband, and be unable to unlock the device again until the iPhone Dev Team releases a new method.

    OS 3.0 is currently beta so you would need to find a developer willing to include you as a tester. From there, it is a simple matter of copying the OS to your PC/Mac, and restoring via a custom firmware.
    06-08-2009 08:58 AM
  3. jamesus's Avatar
    Anyone knows how to unlock iphone 3G v 2.2.1 (5H11) modem firmware 02.30.03?

    Also, upgrade to 3.0???
    Do not upgrade to 3.0.

    You will need to downgrade the baseband from 2.30.03 in order to unlock.
    06-08-2009 11:55 AM
  4. whitewuf's Avatar
    so let me get this right.

    first i downgrade, then unlock, then upgrade again?
    06-09-2009 01:27 AM
  5. Neutrino's Avatar
    It's not that easy. There is a specific baseband version associated with OS 2.2.1. If your device had been upgraded to 3.0, then downgraded back to 2.2.1, the baseband would not have changed. The 3.0 baseband has not been unlocked yet. I would refer all your unlocking questions to modmyi.com.

    If you want to unlock the device, you will have to stay at 2.2.1 until the iPhone Dev Team develops an unlock for 3.0. OS 3.0 has been jailbroken but not unlocked.
    06-09-2009 09:46 AM
  6. jamesus's Avatar
    Downgrading the baseband does not mean you have to downgrade the firmware. Even if you roll back to 2.2 or earlier, the baseband will still be the same.

    Try this:

    How to downgrade iPhone 3G baseband 02.30.03 to 02.28.00 - ModMyi downgrader tool released! | GadgetLite - Latest gadgets and technology news
    06-09-2009 09:48 AM
  7. whitewuf's Avatar
    ok, now i am even more confused than before. hahaha. I think i will wait for Dev-team on their 3.0 news......
    06-10-2009 11:39 PM
LINK TO POST COPIED TO CLIPBOARD