Here is a tutorial explaining how to hex edit Xbox 1 XBE's to your region so the game works on your Xbox 360 through the Xbox 1 emulator.
First, you need the hacked Xbox 1 emulator that disables the RSA signature check (by le_uberfry) that allows you to run region patched XBEs -> buscarlo como xefu_patched.rar
Extract these files to the Compatibility folder on Partition 2 of your Xbox 360 HDD but remember to backup the files already there. Also, delete any Fusion Updates in the Cache folder. Use xm360 to check if you have any fusion title updates.
Next, you need to use C-Xbox Tool's ISO EXPLORE function to extract the default.xbe and any other xbe's.
http://tinyurl.com/cxboxtoolOpen the xbe(s) with a hex editor and the region is "usually" found after the game name, the most common offsets are 0x218, 0x220, 0x224.
Change the value at one of the above addresses to any of the following:
PAL - 0x04
USA - 0x01
JPN - 0x02
RF - 0x07
To see whether you have the correct offset for the region, open the edited XBE in deXBE.
Go to the Certificates tab and see if the Region has changed to what you edited it to. If it did, congrats, you patched, the correct offset!
Now, use C-Xbox Tool to replace the default.xbe and other xbe's if available with the patched ones and proceed to make the Xbox Originals container and see if the game now works on your region of Xbox 360.
I'm not a coder so if someone is able to make a program that patches *only* the game region in the XBE then by all means go ahead as deXBE modifies too much of the XBE to patch only game region that the game no longer works in the Xbox 1 emulator.
http://www.caustik.com/cxbx/download/xbe.htmNote: This does not work with all games.