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PSGRADE Free PS3 Downgrade Hex Released - Master Key Found!

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216w ago - Since the release of PS3 Firmware v3.55 there is no sense in keeping the master key a secret any more - it has been released, along with unencrypted payloads, and a promise to release the source-code by PS3YES for a free PSGrade PS3 downgrader.

Download: PSGrade / PSGrade PS3 Hex Codes / [Register or Login to view links] by littlebalup

Of note, the downgrade hex will only work on PS3's with a firmware of 3.50 or below.

The same team which brought the PSN spoof for online support of jailbreaks now has also brought us a Free Downgrade HEX for the PS3! PS3YES has released un-encrypted HEX files for downloading.

They promise open-source code to be release soon, but find below pre-compiled HEX files:

PSGRADE AT90USB646-16Mhz Teensy++ 1.0
PSGRADE AT90USB1286-16Mhz Teensy++ 2.0

This is the last line from psgrade_ps3yes.hex

[Register or Login to view code]

Of note, The master key has been stated to be:

[Register or Login to view code]

Furthermore: A PS3YES flash update and PS3 Downgrade guide have been posted here and PS3Key flashes have been posted here.

PS3YES has stated, to quote:

"Our downgrade firmware is based on the PSGrade project, we will open the source soon.

Support for the following:

PS3YES AT90USB162 8mhz
PS3YES AT90USB162 16mhz
AT90USBKEY at90usb1287 8mhz
Teensy++ 1.0 at90usb646 16mhz
Teensy++ 2.0 at90usb1286 16mhz

Remember PS3YES were the first to release that PSN Hack that lasted a week on their Chinese forums!

Also sadly v3.55 is out so you can only use this great release to Downgrade v3.50 or LOWER firmwares!

NOTE: Importing the HEX to other devices using current payload converters will NOT work!"

graf_chokolo says: The key from KaKaRoTo for 0xAAAA dongle id is fine Just tested it by communicating directly with USB Dongle Authenticator from GameOS through DM VUART. Congratulations KaKaRoTo Good work!

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter, Facebook and drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene and PlayStation 4 scene updates and fresh homebrew PS3 Downloads. Enjoy!

Comments 141 Comments - Go to Forum Thread »

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#91 - hawk188 - 216w ago
hawk188's Avatar
Cheers BarbnJason - I can't wait to go home and try !!

#90 - hackerxide - 216w ago
hackerxide's Avatar
Quote Originally Posted by xScoper View Post
Any Ti 84 ports yet?

Atm no, we just have to be patient and wait for all this to sort out, like whether or not the key is the master key, or just a jig key.

But I do agree with you, i'm waiting for the tidal wave of ports to all existing boards

#89 - rip - 216w ago
rip's Avatar
Here is the TEENSY 2.0 Board

#88 - barbnjason - 216w ago
barbnjason's Avatar
Yes thats the Idea on what to do to play the 3.50 games (from Orignal Disc) and enjoy JB stuff.

Also most reports are that:

Fat= Untouched.

Some think that has to do with the NAND on the FAT can store the whole fw and silm stores a part on the HDD.

#87 - FMAranda - 216w ago
FMAranda's Avatar
Can anyone please compile for PIC boards? I tried to use HEXTOOL but it says that there is no payload on these hexes.

#86 - barbnjason - 216w ago
barbnjason's Avatar
Try this one not sure if its still live but if it is this is the one you need.. from this post:

[Register or Login to view links]

There is also a guide on how to use the files.

#85 - dyceast - 216w ago
dyceast's Avatar
Look forward to using it Evilsperm when my board arrives...

#84 - evilsperm - 216w ago
evilsperm's Avatar
Ok all fixed up!

zAxis has pushed a fix in psgrade.c

I have now pushed it to my git with the updated lufa-lib.
I had cyberskunk test it out and everything is working perfectly now

git repo: git://github.com/evilsperm/PSGrade.git

Fixed hex's: [Register or Login to view links]

Fixed Source: [Register or Login to view links]

#83 - hawk188 - 216w ago
hawk188's Avatar
Sorry but I am utterly confused. Worked, don't worked, major issues.. etc.

Ok so I have a Minimus AT90USB162 and I have the other 3 files required and currently on v3.41. Can someone plesae tell meif this will work :

If I wanted to play GT5 , I would let the systems update to 3.50 then play the game and when done playing, downgrade it back to 3.41 using the method posted here ? So any game requiring 3.50 can be played this way ?

Will downgrading totally reformat the HDD ?

Many many tnhanks in advance

#82 - elser1 - 216w ago
elser1's Avatar
thanks mate.. nice explaination.. + rep


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