Xbox 360:RGH/RGH1

RGH1 is for non-Xenon phat consoles with dashboard 14699 and lower. It uses CPU_PLL_BYPASS to slow down the CPU. While there were other RGH1-targeted chips, such as EDGE360, X360 Glitchip, Matrix Glitcher 360, and SQUIRT360; this page details how to use RGH1 using a Coolrunner due to their availability.

The original diagrams can be found here: Coolrunner Rev C, CR3 Lite.

Equipment Needed

• Coolrunner Rev A/B/C/D or CR3 Lite
• A PC running Windows Vista or later
• A soldering iron, solder, and flux (MG 835 recommended)
• Isopropyl alcohol (91% or higher recommended) and cotton swabs
• xFlasher 360, NAND-X, JR-Programmer, or Matrix Flasher
• J-Runner with Extras

Glitch Chip Installation

1. Affix the Coolrunner on the A/V port with the solder points facing towards the fan cutout.
2. Solder the GND wire to the A/V port.
3. Solder 3v3: Diagram
4. Solder A: Diagram
5. Solder B: Diagram There are 2 points boxed, either can be used.
6. Solder C: Diagram
7. Solder D: There are 2 options for D.
   • R8C2: Performs better Diagram
   • J8C1: Easier to solder Diagram

Programming the Glitch Chip

1. Plug the cable from your programmer into the chip programmer. Slide switch on the CoolRunner to “PRG”.
   • If you are using an xFlasher, ensure the switch is set to SPI.
2. Open J-Runner with Extras. Click “Program Timing File” in the upper left and select your console’s tab and the relevant radio button for RGH1.
3. Click “Program”. When complete, unplug the cable from the glitch chip and set the switch back to “NOR”.

Decrypting the NAND

1. Connect Ethernet and power on the console. The Coolrunner should blink once or more times, and then the console should start into XeLL RELOADED.
2. Once XeLL finishes, it will display your CPU key and some other info. There is also an IP address.
3. Enter the IP address into the box on the lower right of J-Runner and click “Get CPU Key”. J-Runner will pull the info from the box, and decrypt the NANDs automatically.

Writing New NAND Image

1. Power down the console, and connect your programmer to the motherboard.
   • If you are using an xFlasher, ensure the switch is set to SPI.
2. In the upper right of J-Runner, ensure the Glitch radio button is selected.
3. Click “Create XeBuild Image”. This will take a few moments.
4. Click “Write NAND”.
5. Disconnect your programmer when the process completes.
6. Boot the console several times and ensure it boots consistently. If not, make sure your wiring is clean and neat and avoids noisy area. Run the wires near the X-Clamps for best results.
7. Return to the RGH main page and continue in the Cleaning Up section.