Topic: Change DVD key and Game Region Code on Xbox360 (CPU key required) (Read 374 times)

Xbox-Scene · « **on:** July 17, 2007, 03:12:00 PM »

Change DVD key and Game Region Code on Xbox360 (CPU key required)
Posted by XanTium | July 17 17:12 EST | News Category: Xbox360

(IMG:http://www.burstnet.com/cgi-bin/ads/ad9520b.cgi/ns/v=2.1S/sz=300x250A/

Hackers on the XBH forums managed to change DVD key and Game Region Code in the Xbox 360 'Key Vault' (that stores on flashchip: console certificate(s), per-box private keys, DVD key, however NOT any code-related encryption keys).
However you should know the 'Key Vault' is encrypted with the per-xbox360 'CPU key', so that means this hack is only possible on Hypervisor exploitable Xbox360s (kernel 4532 and 4548) for now. You will of course also have to read/flash the Xbox360 flashchip (by desoldering it and read/flash it with programmer or for example use the versatile Infectus dev chip)

From SeventhSon on xboxhacker.net (free reg. req.):

Quote

I successfully changed the DVD key and region code of a 360. So it's all confirmed.

As for landmarks and interweb fame. All I did towards this was to reverse the plaintext KV signature to figure out how to modify and resign the KV contents. And even this work was built on the efforts of other hackers. For example, I didn't locate the region code in the KV and a lot of the SHA1 and RC4 encryption code was reversed and documented by others way before I started looking at it. *If* the region code tests are successful, then the following people contributed *much more* to this achievement than me.
Takires, TheSpecialist, Robinsod, tmbinc.

The following assumes you have the correct 1BL key and CPU key set in the flashtool.
1. Dump the NAND from the US 360 (528-bytes-per-page)
2. Open in the latest flashtool (v0. and click [extract]
3. Edit extracted KV.bin and change 16-bits at offset 0xB8 from 0x00FF to 0x02FE
4. Open in flashtool and click [patch], check the "patch keyvault" box and select the KV.bin modified in step 3
5. Click [OK] and choose output file
6. Flash output image back to the NAND of the US 360
7. Try an EU game or two.

Arakon tested this successfully:

Quote

My USA 360 just booted a PAL (non-regionfree) game. the region patching WORKS.

News-Source: xboxhacker.net

ILLusions0fGrander · « **Reply #1 on:** July 17, 2007, 02:55:00 PM »

wish it was easier to get the CPU key :?

maybe it is and i just havent looked in the right places.

Lush · « **Reply #2 on:** July 17, 2007, 02:56:00 PM »

the scene grows stronger... great to see progress being made on all fronts...

Textbook · « **Reply #3 on:** July 17, 2007, 03:30:00 PM »

QUOTE(ILLusions0fGrander @ Jul 17 2007, 05:31 PM)

wish it was easier to get the CPU key :?

maybe it is and i just havent looked in the right places.

http://www.xboxhacke...g50090#msg50090
or
http://arisme.free.fr/Xbox/Fuse360/

bucko · « **Reply #4 on:** July 17, 2007, 03:40:00 PM »

Awesome, *waves by by to mod chips*

Spark · « **Reply #5 on:** July 17, 2007, 03:44:00 PM »

But this doesn't replace modchips as it only changes the region, it doesn't make the console completely region free.

Bassie Von Adriaan · « **Reply #6 on:** July 17, 2007, 03:45:00 PM »

I have a vulnerable kernel but if im right, I would only be able to set it to one region, because if I upgrade the kernel to play newer games, I lose the vulnerabilty (IMG:style_emoticons/default/sad.gif) Tuff choiche to choose beween Us and Jap, although I tend to lean to Jap. Or maybe wait till more is possible trough software or other hacks (IMG:style_emoticons/default/sad.gif)

This post has been edited by Bassie Von Adriaan: Jul 17 2007, 10:46 PM

TheIrishLad · « **Reply #7 on:** July 17, 2007, 03:58:00 PM »

Very cool, but too complicated for this lowly peasant.

Now it seems that the only thing in the way is getting the Xbox 360 back to the exploitable kernels. Because then those people who bricked their XBox 360's by losing their DVD keys can make a new DVD key with this. Or am I delusional?

Bassie Von Adriaan · « **Reply #8 on:** July 17, 2007, 04:02:00 PM »

I dont think u can downgrade in the first place cuz of the efuses, u need the values of those or something. So I dont see that happening soon

This post has been edited by Bassie Von Adriaan: Jul 17 2007, 11:03 PM

Spark · « **Reply #9 on:** July 17, 2007, 04:08:00 PM »

Yeah I could have done this easily but my kernel version is too high.

Shame really.

ILLusions0fGrander · « **Reply #10 on:** July 17, 2007, 04:32:00 PM »

QUOTE(Bassie Von Adriaan @ Jul 17 2007, 06:21 PM)

I have a vulnerable kernel but if im right, I would only be able to set it to one region, because if I upgrade the kernel to play newer games, I lose the vulnerabilty

Tuff choiche to choose beween Us and Jap, although I tend to lean to Jap. Or maybe wait till more is possible trough software or other hacks

once you have the cpu key, which you need to do this anyways, you have the ability to downgrade kernals.

wellmodded · « **Reply #11 on:** July 17, 2007, 04:56:00 PM »

this sweet

now these are the thinks i wanted to here about happening the the 360

Bassie Von Adriaan · « **Reply #12 on:** July 17, 2007, 04:59:00 PM »

QUOTE(ILLusions0fGrander @ Jul 18 2007, 01:08 AM)

once you have the cpu key, which you need to do this anyways, you have the ability to downgrade kernals.

Yeah, with the Infectus modchip, but i cant install those so unloucky for me (IMG:style_emoticons/default/sad.gif)

flashfreak · « **Reply #13 on:** July 17, 2007, 05:08:00 PM »

This is a good step forward, good work guys.

This will all become easier in a yr or so. Think about the first xbox, everything was extremely difficult at the start, now we can have it hacked in 10 mins with a chip and a bios, can do everything that would have taken months to figure out before. We've come so far with it all.

It'll just take more time and research till they figure out an easier way to do this.

Its funny though, i reckon at least 50% of people want a hack JUST so they can use XBMC. Makes me laugh.

xboxgamer999 · « **Reply #14 on:** July 17, 2007, 05:14:00 PM »

don't laugh, I'm one those people who to see xbmc on 360. I maybe a year or so before it actually happens but it will happen.

Author Topic: Change DVD key and Game Region Code on Xbox360 (CPU key required) (Read 374 times)