How to JTAG Hack your Xbox 360 Console, allowing you to run homebrew applications and backup games on your Xbox 360 Console. Complete step by step procedure with pictures to guide you along the way.
To check your Xbox 360 Dashboard Version:
1) Turn on your Xbox 360 Console and go to Console Settings:
2) Scroll to System Info, the current dashboard is on your top right (note in the image below i have kernel 2.0.8955.0 which is not JTAG-able)
OK - If your Dashboard shows version 2.0.7371.0 or lower, let's proceed to the next step, building the NAND DUMP CABLE (DB25 MALE PLUG)
BUILDING LPT/RJ45 CABLE FOR YOUR XBOX 360 CONSOLE
Now moving on.....we'll next need to create a simple DB-25 to RJ45 Cable to allow us to dump the NAND image from the Xbox 360 Console and write the new image back. Images below of what we will be building...
Contents Required to build this JTAG XBOX 360 cable (easily found at your local electrical outlet)
Content Images Below:
We will prepare the DB25 Male Plug First....Study the image below.....
What we want to do here, is strip one end of the CAT5 Patch Lead, separate the wires and prepare them for soldering on the Xbox 360 Motherboard. The wire colors on the patch lead may not necessarily match the colors in the diagram below so be prepared to quickly draw up and make note of your own color configuration. Example: Orange on Diagram Above = Orange/White on Patch Lead....The idea is to have the wires soldered onto the board as per the diagram below, and the other end of the cable going into the RJ45 Joiner (NOTE: the joiner does not need to be glued to the Xbox 360 case as it is on the image below)....Here's a closer look once the wires are soldered to the Xbox 360. Take your time as you do not want to bridge any connections during this step!
Now we have completed this step, lets move onto the other end of the joiner. Basically we will yet again strip one end of the RJ45 Cable, prepare the wires for solder, and then solder to the DB25 Male Plug - Keeping in mind the color combination so we are routing them through the joiner correctly and matching the colors on the motherboard to the pins on the DB25 Plug as per the image below)
REMEMBER: There are 5 wires that need resistors soldered to the pins before them, the diagram below advises which ones they are, view the images of the Xbox 360 Mainboard below to get a better understanding of this step....
Pin Configuration on Xbox 360 JTAG DB25 Male Plug (take note of which is number 1)
Here's the completed and prepared Xbox 360 JTAG DB25 Male Plug with the Resistors in place....
Make sure none of the wires touch or are bridged....finally place the DB25 Cover on and you are ready to dump your NAND IMAGE using your Xbox 360 JTAG Cable :)
Once the Cable has been built, we can proceed to dumping the NAND image of your console
DUMPING YOUR XBOX 360 NAND IMAGE
VALIDATING YOUR XBOX 360 NAND IMAGE DUMP
Now we need to confirm the Xbox 360 Nand Dumps you have made are valid for safekeeping....
First off, confirm your images are identical using a hex editor to make sure they match 100%
Then downloaded an application call degraded from Xbins
Run Degraded, Click on Settings
Open up another browser and google "Degraded 1BL key"
Enter the key you found in the google search results into the Degraded Settings
Click the Valid and set file system start to 39
Now open your Orig.bin file you created earlier, Upon opening the file, you shouldn't receive any bad blocks
Here's an image of an image dump....
Now follow the guidelines below to confirm whether or not you can JTAG your Xbox 360 Console, even though you may have the correct dashboard on your Xbox 360 Console to JTAG, it doesn't mean you have an exploitable Xbox 360 CB, but there's a good chance it is.
Now in your Degraded Window, check which version CB you have got, and follow the chart below:
Exploitable Xbox 360 CB's which you can JTAG
Non Exploitable Xbox 360 CB's which cannot be JTAG
Xenon: 1922, 1923, 1940
NOTE: The image above is non-exploitable so cannot run the Xbox 360 JTAG Hack
Now confirm your Xbox 360 Console has an EXPLOITABLE CB, if it doesn't i'm afraid you'll have to try finding another Xbox 360 to work on....
XBOX 360 JTAG - THE FINAL PROCEDURE
So you have an Exploitable CB and your Xbox 360 Dashboard version is 2.0.7371.0 or lower? Great you're in luck, now to the final part of the guide, installing the JTAG hack yourself. Depending on which Revision Xbox 360 you have the installation procedure for JTAG is a little different. Refer to my Xbox 360 Revisions link in the hot articles section of my website.
To Trigger the Xbox 360 JTAG hack, you need to bridge 3 points on the Xbox 360 Motherboard, i will advise which points they are depending on Xbox 360 Revision...
The Xbox 360 JTAG Hack requires switching diodes between some of the points being bridged....Pictures below state where the diodes should be and in which direction, pay close attention to the arrows...
Switching Diode Part Numbers: BAT41 or 1N4148 or 1N4153
XBOX 360 XENON REVISION
XBOX 360 FALCON, ZEPHYR, OPUS AND JASPER REVISIONS
.....OK please note that once the hack is installed, your Xbox 360 will not boot until a hacked imaged has been dumped. Also note that the JTAG hack above and the 3 wires we just installed will permanently need to stay where they are.
WRITING THE HACKED XBOX 360 XBR IMAGE ONTO YOUR XBOX 360 CONSOLE
And now you have a Jtagged 360 all we have to do now is install the software to be able to use its capabilities first we will install xexmenu and then freestyle dash use the following links....