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How Can I Make a JTAG for Modern Warfare 2?

In order to make a JTAG Xbox 360 for "Call of Duty: Modern Warfare 2," you must open up your Xbox 360 and solder on some additional hardware. JTAG, short for "Joint Test Action Group," allows a chip to perform operations like single stepping and breakpointing. A JTAG Xbox 360 is essentially a modified Xbox 360 that opens up user access to homebrew games as well as modified versions of games, such as "Call of Duty: Modern Warfare 2."

Things You'll Need

Soldering iron
Solder
Solder paste
Printer Cable
NANDPro (Version 2.0 d)
Infectus NAND Checker (Version 1.1)
Xbox 360 with kernel version 7371 or lower
Case tool
Anti-static gloves
Needle-nose pliers
4 conductor flat wire, 30cm in length
Shrink tube
Multimeter
3 switching diodes

Instructions

- 1
  Turn your Xbox 360 so the back of the console is facing you. You want to identify the exact model of the Xbox 360. There are three generations of Xbox 360 models: Xenon/Zephur (made in 2005), Opus/Falcon (made in 2007), and Jasper (made in 2008 and beyond). In order to identify the generations, look at the power connector. The Xenon/Zephur models have six power plugs that are yellow on the inside with a block in the middle. The Opus/Falcon models have six power plugs that are yellow on the inside. The Jasper model has two tabs on the top portion of the power plug.
- 2
  Unplug all memory devices from the Xbox 360, including memory cards and hard drive disks.
- 3
  Turn on Xbox 360 and navigate to "System Settings," then "Console Settings" and finally select "System Info." To check that the dashboard version of your Xbox 360 is compatible for the JTAG modification, the dashboard version must read: "2.0.7371.0."
- 4
  Power down Xbox 360 and unplug from the wall. Put on a pair of anti-static gloves and disassemble your Xbox 360 with a case tool.
- 5
  Locate J2D2's pin 4 and pin 7 on the motherboard. Cut 3cm of flat wire and strip insulation with a pair of needle-nose pliers. Dip the ends into soldering paste and solder onto pin 4 and pin 7 to bridge the connection.
- 6
  Measure out a 20cm flat wire and cut in half. Solder diodes to ends of both wires. Fit wires with shrink tubes and shrink with soldering iron. Solder the leg of the diode onto J1F1's pin 3 and the end of the wire onto J2D2's pin 1. Solder the other wire's diode onto J1F1's pin 4 and the wire side onto J2D2's pin 2.
- 7
  Cut a printer cable in half and match the cables up with their appropriate pins using a multimeter. Solder resistors to the cable ends and one diode to the LPT cable. Solder the diode end to the motherboard's pin 18. Solder the resistor ends to the ground of the motherboard just below Pin 16.
- 8
  Plug the Xbox 360 into the wall, but do not press the power button.
- 9
  Connect Xbox 360 to the computer via the LPT (printer) cable. Dump the NAND using NANDPro software. For Xenon, Zephyr, Flacon, Opus and 16mb Jasper Xbox 360 models, type the following command: "C:\Nandpro20b\nandpro.exe lpt: -r16 nand1.bin." For Jasper models with 256 megabytes of internal memory, type: "C:\Nandpro20b\nandpro.exe lpt: -r256 nand1.bin." For Jasper models with 512 megabytes of internal memory, type: "C:\Nandpro20b\nandpro.exe lpt: -r512 nand1.bin."
- 10
  Press enter to dump NAND. The NAND block should read 3FF. Dump the NAND again by running the same command and see if the reading is the same.
- 11
  Run Infectus NAND checker to see if NAND was properly dumped.
- 12
  Reassemble your Xbox 360, turn on, and play JTAG "Modern Warfare 2."

Xbox 360