A-Hackers-Guide
Xbox 360

J-Runner with Extras

J-Runner with Extras is the central software for Xbox 360 homebrew installs. It ties together every step that happens on your computer: talking to the NAND programmer, recovering the CPU key, and assembling the modified image your console will boot. If a method has a "build the image" stage, this is the tool that does it.

What it handles

  • Reading the NAND through your chosen programmer and saving the dump.
  • Recovering the CPU key from the dumped flash, the unique key your image must be tied to.
  • Building the image for your specific method, whether JTAG, an RGH variant, or R-JTAG.
  • Writing the image back to the console once it is assembled.

Where it fits

  1. Detect
    Recognize the connected NAND programmer and console.
  2. Read & key
    Dump the flash and extract the CPU key.
  3. Build
    Generate the modified image keyed to this console.
  4. Write
    Flash the finished image back.

Keep it current

Use an up-to-date build of J-Runner with Extras. Newer console revisions and methods like RGH 3 are only supported in recent versions, so an outdated copy may not recognize your board.