OK guys I HAVE BootMii as boot2. I can boot into the HBC, but not the Sys Menu. I loaded up Muiti Mod Manager and it says I have a stub IOS70 on 4.2. So my Wii freezes when loaded the menu because of that. How do I uninstall it?!
Do exactly that^
And if you can, revert back to 4.1, since 4.2 and 4.3 bring nothing but piracy prevention, and nothing else.