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PSGRADE Free PS3 Downgrade Hex Released - Master Key Found!


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195w 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

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
PSGRADE AT90USB1287-8Mhz
PSGRADE PS3YES
PSGRADE PS3YES AT90USB162-8mhz
PSGRADE PS3YES AT90USB162-16mhz

This is the last line from psgrade_ps3yes.hex


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




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 and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 141 Comments - Go to Forum Thread »

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BwE's Avatar
#136 - BwE - 195w ago

Bul-ray Disc Player Revoke
read bdp revoke package (1900 bytes) elapsed = 4 msec
decrypt and verify bdp revoke package elapsed = 32 msec
write bdp revoke package elapsed = 2268 msec
compare bdprevoke package elapsed = 58 msec
Bul-ray Disc Player Revoke done(0x8002f000)
Update Program Revoke list
read program revoke list package (704 bytes) elapsed = 3 msec
update program revoke list elapsed = 331 msec
Update Program Revoke list done(0x8002f000)
move_2block_status_into_the_region(): region id = 3
rewrite_region() region id = 0x3, start_lba = 0x0, end_lba = 0x4000
rewrite region done (ret = 0x8002f000)
rewrite region elapsed time = 1274 msec
touch_1st_sector_in_block() region id = 0x3, start_lba = 0x0, end_lba = 0x4000
touch_1st_sector() done (ret = 0x8002f000)
touch_1st_sector() elapsed time = 1227 msec
rewrite_region() region id = 0x3, start_lba = 0x0, end_lba = 0x4000
rewrite region done (ret = 0x8002f000)
rewrite region elapsed time = 1276 msec
Update BD firmware
read BD firmware package (1966992 bytes) elapsed = 107 msec
update BD firmware elapsed = 185 msec
read BD firmware package (951040 bytes) elapsed = 52 msec
update BD firmware elapsed = 144 msec
read BD firmware package (951040 bytes) elapsed = 52 msec
update BD firmware elapsed = 146 msec
read BD firmware package (951040 bytes) elapsed = 52 msec
update BD firmware elapsed = 146 msec
read BD firmware package (1639296 bytes) elapsed = 89 msec
update BD firmware elapsed = 155 msec
Update BD firmware done(0x8002f000)
I'm sure this can be fixed via xregistry seeing as people are saying restoring their flash2/3 does the trick.. also: lol at bul-ray

Edit: what region is your ps3? did you use the modified 3.41?

you should be able to fix it by restoring a dev_flash3 which you prob don't have...

you can try downgrading to 3.15 and upgrading with the legit 3.41 etc

apparently this only happens with NTSC ps3's.

jensen76's Avatar
#135 - jensen76 - 195w ago
i have downgraded and now it won't play bluray how do i fix that? ore is that not possible right now?

Fusseltuch's Avatar
#134 - Fusseltuch - 195w ago
So does it work to use a debug pup ?

xxxgizmoxxx's Avatar
#133 - xxxgizmoxxx - 195w ago
WARNING: Once you update with the modded 3.41 pup you will no longer be able to play bluray movies! Use at your own risk.
Wow, am I glad I didn't jump on this one! Would this issue have anything to do with the 3D playback upgrade 3.5 applies? But would have thought going back up to 3.5 would resolve the issue!

Boo1974's Avatar
#132 - Boo1974 - 195w ago
I have sort of answered my own question.

If I create a new profile the problem disapears. When i downgraded back to 3.41 all the profiles on my system were present but were renamed to *User 1, *User 2 etc. I renamed the profile I normally used, with all my game saves listed, it may be this that confused poor old jap fatty. It still would be nice to have a more elegent soloution but at least the downgrade path works and I am grateful to the those clever devs.

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