In the previous step of the JTAG tutorial I showed you what you need to get ready to JTAG your Xbox 360! Let's begin the actual mod by first creating your NAND cable!
Above is the wiring guide. Cut your CAT5 patch cable in half and strip down a small amount of the wires so you can prepare to solder. The colored guide shows you which pad on the motherboard connects to which pin on the DB25 cable. Write down the colors of the wires in your cable as they correspond to the pin/color on the image. For example, here is what I wrote:
1 (purple) = blue wire
2 (aqua) = white/orange wire
11 (brown) = brown wire
14 (yellow) = white/blue wire
16 (d. blue) = white/green wire
17 (red) = green wire
18 (green) = orange wire
With that in mind, solder the appropriate wires to the DB25 connector. NOTE: These 2 are not my pictures, I had already built my cable previously. So don't pay attention to their color scheme - use yours!
Remember, like the image said before, you will need to put your 100 ohm resistors on pins 1, 2, 14, 16, and 17 as shown in the above image.
Now you're going to take the other half of your CAT5 cable and solder the same colored wires to the appropriate pads - as if they were the same cable still! For example, the red color on the DB25 pin on the above image still goes to the red color on the board.
As you can see in my image, I only used a small part of this half of the network cable. This is recommended so data will have to travel less far. Less errors occur this way! Use the above guide to solder the wires to the board. As you can see, the color scheme I outlined above is used here - because this is being done as I write the guide =)
Move your Xbox 360 over near your computer. Connect the power and video cabled to the console but DO NOT POWER IT ON.
Plug your DB25 head cable half to your parallel port. Attach the other end to the Xbox 360 using the RJ45 extender (see why it's handy now?).
You're all ready for Part 3! If you have any questions - or you're stuck - please let me know in the comments section below. Stay tuned for Part 3: Dumping the NAND image!
Until next time...