Hi all, sorry for the lame post, i've been looking round and havn't come up with a definate answer yet so here's my question: -

I purhased a faulty 360 from ebay a while ago to mess around with and atempt to fix, it turned out to be a bad HL drive flash (no eject), after messing around I dumped the eeprom from the drive and wrote it along with the original firmware to another drive and spoofed it to the same model. Didn't work, so I assumed the dvd key on the original drive was incorrect. I even got the original drive ejecting again after rewriting the f/w through windows using a hot swap from the working drive, I couldn't find anybody else who managed this?

I left it for a while hoping that things would develop, I beleive the DVD key can be obtained from the motherboard through the linux hack, but to get the linux hack on I would need a working dvd drive, I have a second 360 with a 3 light ROD problem which I fixed for a while and works for short amounts of time now, it has a hdd. Would it be possible in any way with the combination of the two machines and hdd that I could read the dvdkey from the first 360?

Or perhaps would it be possible to read it directly from the bios on the motherboard etc? Do we know where it is stored? and can this be decrypted without the cpu key? or use the hdd to transfer the software required to get the cpu key?

If you just pointed me in the correct direction then I will do the rest of research to perform the job and post here, but I don't want to waste my time if it is a definate no go?

Cheers

Rob

I wonder this too..

and by saying "working dvd-drive" do you mean another XBox 360 dvd-drive with a random dvd-key? or do you mean a Xbox 360 dvd-drive with the right dvd-key for the current motherboard your trying to fix?

I wonder if its possible to run Linux on a XBox 360 with a dvd-drive with wrong dvd-key, since you can run dvd-movies, and the tutorial for "fixing" lost dvd-key kinda doesnt tell you otherwhise..

anyone got any clue?

Plenty of people have given definite answers before, but I can repeat it:

There's no way to recover a lost DVD key from the motherboard unless by some bizarre sequence of events you had previously exploited the box to boot Linux and made a note of your CPU key, but failed to make a note of your DVD key.

A future exploit might allow this (if an executable with the boot-from-HDD flag can be found that can be used for the shader exploit) but currently it's not possible.

thanks for the reply

Is there any news? Is it possible now to get key from MB?

No.

hi
i have a question.
sorry for that but i dont know.

Q : i have a programmer .i can read the nand flash and programe it.can i grab a dvd key from dump of flash?
i dump a nand flash and its size being almost 16.5 MB .is dvdkey inside of my dump.bin ?

thanks .
Rigards

No! The DVD-key is in the KeyVault, which resides inside the CPU.

"No" is right - there's no way to do what they wanted - but this isn't true: the keyvault is indeed in the NAND flash, but the keyvault is encrypted using the CPU key, which is inside the CPU. So, unless you have previously exploited the console and run the linux loader to find out your CPU key, you can't decrypt that part of the NAND dump.

infectus 2 chip??

you can dump the nand with anything you want, it still wont get the cpu key as others have stated that part is encrypted with the key which resides on the die in the cpu so the answer is NO

Problem I'm, and some others on here, are having is that we have Xbox 360s that have been sent back to M$ to be repaired for RROD and Failed Drive issues under warranty, and have come back saying they have been tampered with (whether they have been or not doesn't matter) and after coming back from M$ have apparently changed the KEY on the Motherboard to all zeros, but the original Key in the DVD Rom is intact. When you boot it up there's no video/audio and the Xmas lights start flashing on the ROL (2 red/2 green flashing alternating). Another funny thing is that the xmas lights stop when you connect the ethernet cable for Xbox Live, don't know if there is anything in that. Is there any way to fix this, can I change DVD key to all zeros and it work or can I unlock the CPU keyvault with all zeros and replace with original key from DVD Rom? PEACE.

Having the wrong key does not stop the box from booting; it simply won't play 360 games. How on earth are you coming to the conclusion that the key has been changed? The only way to know this is if you had previously dumped your CPU key and then dumped the NAND, and if you had the CPU key and something to dump the NAND with then you would be able to fix this problem that way

If you sent the box back because it was broken and they said they didn't repair it then I'm not surprised it's still broken when you get it back.. shipping it back and forth just gives it more opportunities to get worse, no?

Nothing has changed, anyway; it is not possible to get access to read or modify the keyvault unless you have already dumped the CPU key from the box, and if it doesn't boot then that's obviously impossible.

Hey I already told you that you can't change the dvd to suit because the dvd key in the motherboard appears to be changed causing this error.

Torne it was me that gave him that impression, if you look in the thread about the flashing green and red light error, I linked to a thread in Xboxhacker that someone who had acess to their keyvault changed their dvd key to all zeros and the flashing green/red was the result so that is my conclusion as to what MS have done.

It seems very unlikely that MS would do *anything* to the console other than refuse to repair it; there is no value to them in doing so (in fact, a negative value in being accused of doing so).

It seems much more likely that shipping the box around has made whatever its original problem was different/worse and it now happens to crash in a different way.