JahnDough's RGH 3.0 No-Flasher Softmod-to-Hardmod Bridge Guide (Jasper Model)
Console: Xbox 360 Fat (Jasper - 16MB NAND)
Method: BadUpdate Exploit + RGH 3.0 (No Glitch Chip / No Hardware Flasher)
Author: JahnDough
Overview
This guide walks you through how to softmod a Jasper Xbox 360 using the BadUpdate exploit and turn it into a full RGH 3.0 hardmod without using a hardware NAND flasher. This method bridges the gap between softmod and hardmod, allowing full unsigned code execution with just a USB drive, a soldering iron, and a few components.
Tools & Materials
Hardware:
USB drive (FAT32)
Xbox 360 Hard Drive (must be connected for exploit to work)
Soldering iron (fine tip, ~350°C recommended)
Flux
Solder
Kapton tape
Shrink tubing (optional)
91%+ isopropyl alcohol
Good lighting or headlamp
30AWG wire (two colors recommended)
22KΩ resistor
1N4148 diode
Software:
Modern Vintage Gamer's BadUpdate tutorial
MrMario2011's RGH 3.0 Jasper Tutorial (start at 38:49)
XEXMenu (patched with XePatcher)
XeLL Reloaded (patched with XePatcher)
Simple 360 NAND Flasher (patched with XePatcher)
J-Runner with Extras
XePatcher (Windows app)
Important Notes Before You Begin
For Jasper consoles with 16MB NANDs
Must be on dashboard 17559
Stock NAND + RGH3 wiring = RROD
RGH3 NAND with no wiring = RROD
Keep a hardware flasher on hand just in case
Step 1: Prepare & Run BadUpdate Exploit
Follow MVG's video: https://youtu.be/IUK__yGXmds Uses Rock Band Blitz trial to trigger the exploit
Load patched XEXMenu + Simple 360 NAND Flasher onto USB
Boot exploit and launch NAND Flasher via XEXMenu
Dump NAND:
flashdmp.bin
cpukey.txt
Also launch XeLL to verify CPU key
Back up everything to your PC
Step 2: Build RGH3 NAND Image
Open J-Runner with Extras
Load flashdmp.bin
Paste in your CPU key
XeBuild Options:
Kernel: 17559
Glitch: Glitch2
RGH: RGH3
MHz: 27
Click Create XeBuild
Copy updflash.bin to the USB drive with NAND Flasher
Step 3: Flash the RGH3 NAND
Boot into exploit again
Launch NAND Flasher
Ensure updflash.bin is in the same folder
Follow on-screen instructions:
Dumps NAND to recovery.bin
Flashes updflash.bin
Red ring after flashing is normal
Step 4: RGH3 Wiring
Follow MrMario2011’s tutorial (start at 38:49) for soldering instructions.
Only 2 wires, 4 solder points
Use 1N4148 diode + 22KΩ resistor as shown
No top-side points needed
Keep wires short, clean, and secure with Kapton tape
Step 5: First Boot
Reassemble and power on
Console should glitch into XeLL Reloaded
Boot times so far:
NXE Dashboard: ~22 seconds
XeLL: under 1 minute
Further testing ongoing, but it’s working reliably!
Warnings
Patch all .xex files with XePatcher (XEXMenu, XeLL, NAND Flasher, etc.)
Never update the dash from Xbox Live
Never sign in to Xbox Live with this console
Never lose your NAND backups
Outro
Confirmed working on a Jasper. Testing on Slim consoles is coming next. This is a new RGH 3.0 method that bridges softmod and hardmod with no chip or flasher required.
Created and tested by: JahnDough
Original post on reddit :