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Discuss [Confirmed](04.03 BL 3.9) Downgrade BB at the iPhone "2G" (Rev. 1) - Hackint0sh.org; With the newly available secpack you can successfully downgrade your bootloader 3.9 iPhone back to ...
  1. 01-18-2008 12:28 PM #1
    socal
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    Thumbs up [Confirmed](04.03 BL 3.9) Downgrade BB

    With the newly available secpack you can successfully downgrade your bootloader 3.9 iPhone back to 1.1.2

    For whatever reasons it failed to load 04.01.13 but 4.02.13 loaded fine.

    I just tested it on a phone that was intentionally upgraded to 1.1.3
    Simply erased the baseband and restored via iTunes back to 1.1.2

    See pics

    So for anyone who updated by "mistake" you have hope


    Last edited by socal; 01-18-2008 at 12:52 PM.
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  3. 01-18-2008 12:32 PM #2
    FARAZSID
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    Awesome !!!
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  5. 01-18-2008 12:32 PM #3
    Ashhong
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    Sooo this is for 1.1.1 OTB who upgraded to 1.1.3 by mistake? They can now downgrade back to whatever they want and use it as a phone? Nice. So do you just use the new secpack with iEraser to erase the baseband? Only a matter of time until 1.1.2 OTB...
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  6. 01-18-2008 12:35 PM #4
    protoZ_dk
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    Yea how exactly did you erase the bb?
    Downgrade to 1.0.2 and use same steps as virgizing almost?
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  8. 01-18-2008 12:39 PM #5
    socal
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    Basically....
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  10. 01-18-2008 12:39 PM #6
    Jim Danner
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    I don't understand the title of this thread. "Downgrade Bl"-- you're not downgrading the bootloader, are you?
    iPhone 3GS / 3.1.2 JB (PwnageTool) / 04.26.08 carrier-locked, Carrier Logo Fixer / Cydia / 1000 posts on Hackint0sh

    Installing Cydia programs on a phone that has no internet connection: read this.

    Editing binary .plist, .strings, .nib and .xib files:
    * on your computer: Windows tool / conversion website.
    * on your iPhone: convert those files in a terminal with plutil (installed with Erica Utilities) or edit them with iFile (Cydia links).
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  12. 01-18-2008 12:46 PM #7
    friedo72
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    correct, he downgraded the BASEBAND!
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  13. 01-18-2008 12:48 PM #8
    Ashhong
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    True, the bootloader stays the same (3.9). You are changing the...modem firmware. yea? no...? =/
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  15. 01-18-2008 12:50 PM #9
    Locked
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    Very nice. So those with the 3.9 loader are perfectly safe now.
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  16. 01-18-2008 12:53 PM #10
    socal
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    Quote Originally Posted by Locked View Post
    Very nice. So those with the 3.9 loader are perfectly safe now.
    Looks that way!

    This may fix all the IMEI 0049 issues for people too!
    Upgrade to 1.1.3 downgrade, erase, restore??
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