Sounds bad. There may be some small amount of hope. Do you have a nand backup from bootmii? Did you have bootmii installed as boot2? Have you tried loading preloader with reset button at boot? If you have a gc controller, try savemiifrii, does that work? How old is this wii? Do you remember how you softmoded the wii? What system menu was the wii running before you update it? Did the update complete? Or fail, loss power, pull plug.