I have a japanese wii. I installed some wads to upgrade it to system menu 4. I am on system menu 3.4 but then when I power up the wii there is no health screen just a black screen.!! I have a Official Wii Backup Disc 1.31, System menu update disc for NTSC-J & tried all this disc but does not load. My wii is modded but does not have preloader installed. Can anyone pls help??? Can ordering savemii repair my wii?