I got Priiloader to work on my 4.3U Wii, but when I got that, BootMii decided to die. It won't work, no matter what I do. I wanted to use MyMenuify to change my Wii theme, but in case something goes wrong, is it possible for me to restore my Wii theme without a NAND Backup? Or, if not, is there another program that will allow me to do a NAND backup?