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Thread: Davee's Downgrader released! Downgrade 6.35/6.31 to 6.20

  1. #1
    Member WhiteShad0wX's Avatar
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    Davee's Downgrader released! Downgrade 6.35/6.31 to 6.20

    from davee's blog:
    6.35/6.31 -> 6.20 Downgrader By Davee

    [What does it do?]
    Allows users who are incontent with their firmware to downgrade to 6.20 using the Sony Updater.

    [How do I use it?]
    Copy the "PSP" folder to your PSP. The downgrader is "signed" and can be launched from OFW XMB. You need to copy the 6.20 update to PSP/GAME/UPDATE/EBOOT.PBP and for PSPgo it must be the eflash it is placed on. After setup run the downgrader and follow the onscreen instructions.

    [What does it technically do?]
    It uses the utility/power exploit to gain kernel access and reboots into the updater with a special PRX running. This PRX uses the pspdecrypt functionality to decrypt the updater PRX when needed. This allows the updater to boot in the newer firmwares.

    [I'm a dev, sup?]
    The source is in the SRC folder... if you even read this. Use the source for referencing, updating, snipping etc, remember where you got it from. Also, there is a HBL Sukkiri version, see the "Makefile" for info on the various modes, etc

    [Credits]
    bbtgp - legend. Continued updates to psardumper (pspdecrypt) and the signing application "prxEncrypter".
    coyotebean - legend. Coninuted updates to psardumper (pspdecrypt) and large influence and research regarding cryptographics.
    kgsws - legend. First application signed and method released.
    Silverspring - legend. Lots and lots of info on KIRK where we'd still be in the dark without.
    Bubbletune - BTCNF injection code and bits and bobs here ;D

    [READ]
    You run the application at your OWN risk. I am not help accountable if you PSP [messes] up.
    I am not responsible if you brick by doing this.
    Download here
    Last edited by WhiteShad0wX; 01-25-2011 at 01:38 PM.
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  3. #2
    Senior Member Shift_Lock's Avatar
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  4. #3
    New Member nightsaber_2458's Avatar
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    i know it was supposed to be released late 2011
    + it really works now im at 5.03 gen-c
    if people need help just ask me i no how it works
    psp hacks fourm

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