I installed hbc and I tried to install bootmii as boot2 and it said I was successful. When I boot the wii with the sd card in I just get a black screen. It will boot up with out the sd card. I have installed it and reinstalled it, still the same thing happens. I pressed forward with the soft mod and I can play backup games. I have a wii from the 1st 6 months of launch. Any ides what I need to do to back up my Nand?