Finally!!!
I use UltraEdit
and I find that Serial where is~
also I find pattern to change serial that I want
so... I got back my original serial number 'LJF XXXX XXXX X'
Now, I gonna try do something FUN!
Do u know 'Setting Replace.dol'?
I use this program to my friend's wii.
and... I got 'setting.txt'.
I use 'setting.txt' my wii....
.... Now.... My wii and Friend's wii has same SERIAL NUMBER!!!! oh god!!!!!!!!!!!!!