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  1. #1


    Member Since
    Feb 01, 2009
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    I updated my unlocked iphone, now not compatible
    I updated my unlocked iphone to the new software update, now I cant use it as SIM is not compatible. Is there anyway of downgrading software, and even if i can so this will i be able to use it again or have to get it unlocked.


    thanks, any help appreciated.

  2. #2

    Kash's Avatar
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    It's because those updates tend to get rid of software unlocks. I'm not exactly sure whether you can successfully downgrade the software. You could try downloading the older firmware, hold Shift while pressing restore in iTunes, and then select the older firmware file. Theoretically it should work, but you may very well lose your backup as it has most likely been converted to work with the newer firmware. You will also have to very likely unlock the phone again.

    You should also search around to see if an unlock is available for the firmware version you're running.

    June 2007
    July 2009

  3. #3

    Noxian's Avatar
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    If you updated to the latest software then it also updated the baseband (the GSM radio) There currently is no way to downgrade the baseband on the iPhone 3G.

    I am holding off for this reason, not mention the 2nd last software update is pretty solid IMO.

  4. #4

    fleurya's Avatar
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    I think it's already been worked and unlocked by the dev team. Check out Apple & iPhone 3G News | Forums | ModMyi.com
    "Give so much time to the improvement of yourself that you have no time to criticize others"

  5. #5

    Noxian's Avatar
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    Quote Originally Posted by fleurya View Post
    I think it's already been worked and unlocked by the dev team. Check out Apple & iPhone 3G News | Forums | ModMyi.com
    Thats only if you want to update using the pwnage tool (which requires a full wipe of your iphone) it will pull the baseband update and update the OS only.

    If you quickpwn it, it will jailbreak the iphone but still update the baseband which is fine except in the poster above's situation where his baseband has been updated and it now locked to one carrier again.

    So I guess hang in there until a update to the pwnage tool or quickpwnage is out. Hopefully you have another cell to swap your SIM into in the meantime.

  6. #6


    Member Since
    Feb 01, 2009
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    thanks everyone for the help.

    i tried reinstalling the old firmware but had no effect.

    will probably just go and get it unlocked again

    anyone have a rough idea of how much it costs to get it unlocked??


    thanks

  7. #7

    Noxian's Avatar
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    MacBook Pro 2.2ghz, 3GB, 250GB - 16GB White iPhone 3G - 2nd Gen 1GB Shuffle
    Quote Originally Posted by johnny321 View Post
    thanks everyone for the help.

    i tried reinstalling the old firmware but had no effect.

    will probably just go and get it unlocked again

    anyone have a rough idea of how much it costs to get it unlocked??


    thanks
    You cant get it unlocked, your baseband is currently not unlockable.
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