My Wii Is Bricked. Any Help Would Be Appreciated

Hey everyone. I'm a relative n00b at this so please hang with me. I tried installing the HackMii installer with BootMii and the HBC over the summer. Everything worked fine over the summer and then I left for college and didn't bring my Wii. I just returned for winter break to find that my Wii boots to a black screen. I can access the BootMii menu but nothing else. When I try to access the Homebrew Channel, the disc tray LED just flashes and nothing is on the screen. I never made a backup of my NAND so that is out of the question. I can access BootMii however. To the best of my knowledge, the Wii had the 4.0 firmware installed.

Please offer any advice possible. I've read a Comex NAND formatter but I haven't been able to find any info nor the file for it. Thanks in advance!

If your wii doesn't boot, but you can access bootmii the only solution i see is to get a nand dump from another wii and convert it to your wii with betwiin.