Requirements
Your cpu key
Flash360 tool - [ Register or Signin to view external links. ]
flash360 xex - [ Register or Signin to view external links. ]
Donator nand of your motherboard
Xeon
Zephyr
Falcon
Jasper 16MB
Jasper 512MB
nandpro - [ Register or Signin to view external links. ]



How to obtain your cpu key
Your CPU key (the one you get from Xell or Xellous not the donor's key).

Boot up in Xell by turning your jtag on with eject button.

Have a camera ready to take a picture of the Fuse Set's that pop up briefly.
Take a picture that includes fuse set 3,4,5,and 6. These contain your CPU key. Or just wait until the end of xellous booting and it'll tell you your CPU key and DVD key ;D



Take either 3 and 5 or 4 and 6. This will make up your cpu key. 3=4 5=6 So for example. I will take 3 and 5.

How To Rebuild Nand

Launch Flash360 and use it to dump your NAND.

Extract the kv.bin and config.bin with Nandpro2b with the following commands:

nandpro.exe flashdmp.bin: -r16 rawkv.bin 1 1

nandpro.exe flashdmp.bin: -r16 rawconfig.bin 3de 2

Then inject them into the donor NAND renamed "7371.bin" with the following
commands:

nandpro.exe 7371.bin: -w16 rawkv.bin 1 1

nandpro.exe 7371.bin: -w16 rawconfig.bin 3de 2

Open the orig.bin in 360 flash tool using your CPU key to make sure all the info looks correct.

Use the rebuilt NAND to make freeboot image.

if you have any issues post.



Credits goes to:
imoses
demon dylan

SE7ENSINS