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  1. #1
    Forum Moderator PS3 News's Avatar
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    Video: PS3 Downgrading via PSDowngrade with Beagle 480 USB

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    A few days back we reported on the PS JailBreak Downgrade file leak, and today Hansi of PSXCare.com (linked above) has followed up on some previous work and shared a video of a PS3 downgrading with PS Downgrade and a Beagle 480 USB protocol analyzer.

    Download: Test Boot PS3Key.tdc / Service Mode by PSDowngrade.tdc

    To quote: PSDowngrade / PS3 JIG USB traffic protocol scan

    Use Beagle Data Center Software to read the dumps.

    [Register or Login to view links]

    One file is a PS3Key boot, the other is a PSDowngrade boot.

    The PSDowngrade is supposed to be encrypted and not "analyzeable" according to a distributor. But maybe something can be learned anyway.

    Have fun!





    Video: PS3 Downgrading via PSDowngrade with Beagle 480 USB

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  2. #2
    Senior Member GotNoUsername's Avatar
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    Can't the newly found way to decypt pup's used to do so ? SO that we can have a look into the file.

  3. #3
    Contributor HellReborn's Avatar
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    i can assure you that the file has already been looked at to see just what has done to make it like how it is.

  4. #4
    Wow, it's real that we can downgrade. What a cool news, thank you !

  5. #5
    Since it's a challenge response, it's more useful to monitor the data sent to the PSJailbreak when installing the downgrader.

    That's the hex file we need to reverse engineer. Once you have that, the data during downgrading doesn't matter anymore.

  6. #6
    That video shows very little of any hard downgrade information.

  7. #7
    well it shows some $1200 equipment which i doubt many ppl get for downgrading purpose only... lol nifty device though obviously.

  8. #8
    The service mode file is encrypted? Though you can never tell what a file is by it's extension, it appears that this extension is for "Microsoft Tabular Data Control". If you view it with a hex editor you notice the header of TPDC, so not sure what that is.

  9. #9
    Quote Originally Posted by ninjaihawk View Post
    The service mode file is encrypted? Though you can never tell what a file is by it's extension, it appears that this extension is for "Microsoft Tabular Data Control". If you view it with a hex editor you notice the header of TPDC, so not sure what that is.
    If you re-read the post, it says:

    Use Beagle Data Center Software to read the dumps.

    [Register or Login to view links]

    Perhaps give that software a try to peek into it more!

 
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