Rebuild 0225 with fcrt_dec.bin

[ahorner]

Hello everyone.

I have a slim Trinity here with the 0225 LiteOn drive. When I was dumping the drive firmware a few months ago I foolishly missed the steps to dump the fcrt part as well so I just had the drive key, and then wiped the drive. I was not able to play any games on it since then (Play DVD only, LizFix doesn't work with 0225).

I now have used the DGX to obtain the CPU key, and I have a full dump of the firmware in which I noticed there is the fcrt_enc.bin and fcrt_dec.bin. I am curious as to whether it is possible to regenerate the correct firmware for the 0225 drive including the fcrt checks to be able to keep the stock NAND, or if I would have to disable the fcrt checks in the NAND and be required to keep a CoolRunner (I already own one) on it forever. The Xbox has dash 15574.

Thanks in advance!

 

[15432]

I can regenerate almost all drive data without fcrt_dec. But last 16 bytes of unique drive data can't be recovered this way (without this data games work in 4-7 of 10 xbox starts)
I tried to use decrypted fcrt data (I've even created decrypt software) but no luck, I don't understand how xbox checks data using fcrt.
TX didn't help he
Now best way to 100% working games is wait for LTU firmware. Or you can use almost recovered data with 60% success xbox starts

What drive data do you have? Maybe it's enough for 100% drive recover

 

[ahorner]

I can regenerate almost all drive data without fcrt_dec. But last 16 bytes of unique drive data can't be recovered this way (without this data games work in 4-7 of 10 xbox starts)
I tried to use decrypted fcrt data (I've even created decrypt software) but no luck, I don't understand how xbox checks data using fcrt.
TX didn't help he
Now best way to 100% working games is wait for LTU firmware. Or you can use almost recovered data with 60% success xbox starts

What drive data do you have? Maybe it's enough for 100% drive recover

Thanks for the response! It seems like I have everything from the dump (dummy.bin) except for the 0x3F000 (you wrote the SlimSpoof 3.0 software right?). I have the original drive so the serial number and everything is intact.

http://i.imgur.com/kxSBeWo.png

 

[15432]

Yes, slimspoof 3.0 is my software. Send me all data you have (including stickers photos), I'll try to regenerate it.
If you have serial.bin dumped from DosFlash or Lizard, it could be fully recovered

 

[15432]

-_- he has almost correct Dummy (and one JF bug). Regen is not needed