use easy gui freebooter....all you need is your nand dump and your CPU key, it does the rest for you!
Launch FLASH360 on your system from USB key and make a full nand backup.
Unplug USB key from system and plug it into your computer
Then on your computer, launch Easy Gui Freebooter :
http://www.logic-sun...611-update.htmlClick Create Image
Open saved nand backup (the one you just dumped using Flash360 that should be located on your USB key)
Enter your CPU key (obtained by booting your xbox using the eject key (which boots xell))
Easy Gui Freebooter will finish create an Updflash.bin file
Copy the Updflash.bin to your usb key (put it in the root of your USB key along with Flash360)
Go to your xbox and launch flash360
Button A (write updflash.bin to Nand)
Button B (Raw Flash without keeping current kv/config).
Ignore the warnings ("WARNING: Keyvault encrypted data check mismatch" and "WARNING: Your current nand is not the ZeroPaired.").....just press start!
Pressed A after the 2 warnings to continue with the flash
Wait until it´s flashed
Go Back
Go Back to Turn off Xbox 360 and the system should shut down automatically
Remove Usb pen from your xbox
Remove power cord and wait 2 or 3 minutes before powering back up