Tienes que sacar leer la NAND de tu consola que solo se puede hacer instalando el infectus, con Linux todavia no se puede.
y modificar unos offset.
Te dejo la info de las regiones:
Info de xboxhacker:
I have split this out since it was OT but worth responding to Wink
What You Need
1A) An XBox 360 with either 4532 or 4548 (I dont believe it makes a lot of difference) and RS232 level shifter to run XELL or
1B) An XBox 360 with a later Kernel for which the CPU key is known
2) An installed an infectus chip (Linux software solutions are coming but it isn't quite finished yet)
3) V0.8 of the Flash NAND dump tool
What You Do
1) Get the CPU key - To do this you need to run XELL, Go look at the free60 wiki, search XBH
2) Dump the 360's flash - see the Infectus website
3) Load the flash dump into the tool - make sure you enter the CPU key*
4) Hit the Extract button, choose an output directory
5) Edit the kv.bin file in a Hex editor (Winhex, Hexworkshop). To change the region go to offset 0xB8 replace the 2 bytes as follows
US 0x00,0xFF
JAP 0x01,0xFF
EU 0x02,0xFE
Save the KeyVault somewhere
6) In the tool hit the patch button, check the Patch KeyVault checkbox and select the KeyVault you saved in step 5. Select an output flash image filename.
7) Flash your 360 using the infectus chip
Once you have your CPU keys you can easily upgrade/downgrade (no resistor removal required, the tool can patch the lock down counter) and change region/DVD drive key at any time - just be sure to keep backups of your flash images after each update
Please use this thread to get help using the tool and not the technical threads. I (and others hopefully) will respond to n00b questions here, n00b posts in the technical threads face deletion (persistent n00bs get a ban request)
* Only the CPU Key is required to patch the KeyVault. It appears there is an issue that prevents KeyVault extraction/patching if the other keys are unknown. A small fix for this is in progress
Enlace al hilo original
Aunque segun acabo de mirar, parece que la info no esta completa.
Es un tema complicado.
