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Discuss Downgrade Baseband on Iphone 3G - BL 5.08 at the Ultrasn0w (3G(S)/iPhone 4 unlock) - Hackint0sh.org; Hi Need help to downgrade my iphone 3g baseband from 06.15.00 (ipad) to another one ...
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    Default Downgrade Baseband on Iphone 3G - BL 5.08

    Hi
    Need help to downgrade my iphone 3g baseband from 06.15.00 (ipad) to another one that can be unlocked. I have bootloader 5.08, and i already have used fuzzyband, but now it has no support.
    I upgraded to latest stock 4.2.1 and i want to go back because my itunes gives me errors when i use custom firmware to restore. I'm stuck with ipad baseband!!
    Is it possible to downgrade bb with another method?
    My iphone is fully functional and it is unlocked, but it hurts my stomach, knowing that i can't restore to stock
    Thanks
    Last edited by bjcb; 12-01-2010 at 11:07 AM.



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    Default

    Quote Originally Posted by bjcb View Post
    Hi
    Need help to downgrade my iphone 3g baseband from 06.15.00 (ipad) to another one that can be unlocked. I have bootloader 5.08, and i already have used fuzzyband, but now it has no support.
    I upgraded to latest stock 4.2.1 and i want to go back because my itunes gives me errors when i use custom firmware to restore. I'm stuck with ipad baseband!!
    Is it possible to downgrade bb with another method?
    My iphone is fully functional and it is unlocked, but it hurts my stomach, knowing that i can't restore to stock
    That criteria was made 100% clear when this solution was published.

    Look at this thread for answers. It's possible but requires a bit of hacking

    http://www.hackint0sh.org/f204/191601.htm
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    Default downgrade 06.15.00 to 05.13.04 sucess

    My experience:
    Iphone 3G 16gb with BL 5.08

    Stock upgrade to 4.2.1
    Upgrade to ipad BB 06.15.00 for unlock
    I found ICE2-06.15.00.cert on the internet, with ifunbox i copy the file to applications/fuzzyband on the iphone raw
    Started fuzzyband and downgraded my BB to 05.13.04

    Sucess!!! now i can upgrade to stock again without getting those errors with custom ipsw on itunes.

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    Do you know if I can downgrade to 5.14.02 again with this method. I want to recover the ability to restore from stock and get my GPS back even without unlocking.

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    Default

    Yes you can, just put .cert file from your BB in fuzzyband folder, then your able to downgrade. Remember it only works on 3g with 5.08 bootloader
    You will get 05.13.04 BB when you downgrade, if you want another just restore to stock.
    For 05.14 you must restore to stock 4.1 i presume.

    Regards


 

 

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