Nothing I have tried works...

Yesterday my friend decided to play on my Wii. Even though I told him not to, he clicked on shop channel to see all the things you can get. He told me that an update was needed and he said yes to it.

After that my system menu went from 3. something to 4.

Now I can't use hbc or anything.

HBC, no matter how many times i try to reinstall with Bannerbomb or Twilight, it says its installed and shows up but it sends me back to the wii menu. I have tried downgrading from 4 to 3.3u and now down to 3.2u. I really need help with this.

* There are no controllers, cards, or anything plugged in when i try, and the serial starts with LU63

Try uninstalling the Homebrew Channel with the HackMii Installer and then reinstalling it.

I already did that. It still does the same thing.

Your downgrade was incomplete more than likely. what'd you use to load 3.2?

1: beat up your friend
2: try banner bomb

Downgrading may have made things worse.