Xbox 360:4GB NAND

This guide will walk you through obtaining NAND dumps, creating a patched dump, and writing it to the console using a SD card read/write kit.

This is only compatible with 4GB NAND Corona motherboards.

Equipment Needed

 * 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
 * J-Runner with Extras
 * One of the following:
 * SD Tool 2.2 (Recommended)
 * Xecuter Corona 4GB NAND RW Kit V4.
 * 4GB USB Tool by Element18592
 * Maximus SD Tool for 4GB Corona Nand Kit.
 * Your own DIY R/W cable.
 * A supported SD card reader (if not using the 4GB USB Tool)

Soldering to the Motherboard

 * If you bought an xFlasher 360, use this installation diagram.
 * If you bought a SD Tool 2.2 or 4GB USB Tool, use this install diagram.
 * If you bought an Xecuter Corona SD Card R/W kit, it will come with a QSB to install according to this installation diagram.
 * If you bought a Maximus SD Tool, install according to pages 1-4 of the manual.
 * If you did not buy a R/W kit, you can create your own SD card reader using a microSD to SD card adapter and wiring it up according to this diagram.

Solder Bridges
Ensure to check these resistors and solder as noted.

Reading the NAND

 * 1) Extract J-Runner with Extras.
 * 2) With your Xbox 360 powered off and the card reader or USB tool plugged into a PC, insert the SD card into the reader. Plug your Xbox 360 power supply in, but do not turn it on.
 * 3) * If you are using an xFlasher, set the switch to.
 * 4) Launch J-Runner, and in the top right, click the "NAND Type" button and select "Corona 4GB" and OK.
 * 5) In J-Runner, select "Read Nand" in the top left. A pane will open in the lower right, listing some removable drives. If everything is wired properly, one will show up as Removable Media. If you don’t see it, see the troubleshooting steps at the bottom of this page. Select the drive and click "Read". It will read your NAND twice and automatically compare the dumps. When it has finished, it will tell you if the two dumps are an exact match. If they aren’t, take more dumps until you get matching ones.
 * 6) Copy one of the dumps to a safe place such as cloud storage or send it to yourself in an email to keep it safe. They are located in the output folder.

Writing the NAND

 * 1) With your Xbox 360 powered off and the card reader plugged into a PC, insert the SD card into the reader. Plug your Xbox 360 power supply in, but do not turn it on.
 * 2) Launch J-Runner, and in the top right, click the "NAND Type" button and select "Corona 4GB" and OK.
 * 3) Select "…" next to the Source File field and choose your  . In the top right of the window, select the latest the dashboard version in the dropdown menu next to "Dash Version".
 * 4) * If you want to add a dashboard, extract it to the XeBuild folder inside your J-Runner directory, and restart J-Runner.
 * 5) Select the appropriate   radio button in the top right of the window:
 * 6) *  - For RGH1
 * 7) *  - For RGH1.2, RGH2, and S-RGH
 * 8) *  - For RGH1.2, RGH2, and S-RGH if your eFuses are in a non-bootable state.
 * 9) Put a check in the appropriate check box (if applicable) in the top right of the window:

^1 X360ACE chips only

^2 CR3/CR4 and X360ACE chips only
 * 1) Select the "Create ECC" button and wait for it to finish.
 * 2) Select the "Write ECC" button and select your system and press OK. A pane will open in the lower right, listing some removable drives. If everything is wired properly, one will show up as Removable Media. If you don’t see it, see the troubleshooting steps at the bottom of this page. Select the drive and click "Write". J-Runner will write the modified NAND dump to the motherboard.
 * 3) Once it has successfully written to the motherboard, unplug the power cable from your Xbox 360 and unplug the USB cable from the computer and programmer.
 * 4) Go back to the RGH Hack page and continue at the start of the RGH Wiring section.

Troubleshooting

 * Console does not show up in the list of devices
 * Check soldering
 * Make sure you insert the SD card tool before powering the Xbox
 * Make sure the crystal is grounded properly
 * What should I do if I ripped off a soldering pad?
 * Look online for an alternate point to solder on to. Practice more on junk electronics before attempting to continue.