November 16, 2009Free60 JTAG/SMC XeLL Hack for Jasper-256/512mb Motherboards
Posted by The Ori
Here is the Free60 JTAG/SMC XeLL Hack for Jasper (v4) motherboards with 256 and 512mb NAND chips. This NAND image will boot your Xbox360 right into XeLL, which allows you to launch linux distros or run libxenon homebrew software, as long as you never upgraded it via the normal MS upgrade procedures to kernel 849x or higher.
The diagram below was made by Sandungas, about how to wire the JTAG hack and SPI (for NAND reading/writing via LTP with nandpro) on Falcon/Zephyr/Jasper motherboards.
*Update* Latest version of the diagram made by Sandungas on the free60 wiki.
This is XELL (Redline99’s XeLL) inserted into 6723 Jasper-Kernel.Don’t wonder about the File size, its correct like that. It just flashes the beginning of the NAND so your console specific data like MAC address will stay.
Of course you should have a working backup of your NAND before you proceed.
Comments (5)









need more info but this sounds amazing
Will this work on kernel 7363? xbox manuf date is august 2009
You can run your own code on Xbox 360 systems which have not yet updated to the 849x System Update (Summer 09)…
means that i can get my lost dvd key back?
To do a job done really well Xell should enter into an executable file, call Default.xex, and create a bootable disk that gives us the CPUKY.
I know that file. Xex are protected by the license to 2048 bits that has not been violated, but since x360 is compatible with xbox1 and therefore able to run the files default.xbe, you could create a file for xbox1 be launched in 360 to retrieve the key?
sorry for my English, hello.