Amazon.com: ASHATA TX Programmer V2 for Xbox 360 Game Console, NAND for XILINX CR JTAG Programming, for Xbox 360 Mainboard Cable Repair Tools Set for CoolRunners inc, Phat and Slim, etc :
Tutorial - [JTAG/RGH/R-JTAG] Xbox 360 Ultimate Exploit Guide | Se7enSins Gaming Community