Yeah, I figured as much. I've actually bought a second console already now as I've already spent a fortune on accesories and other odds and ends. That one is now quite happily bootmii and preloader installed.
I'll fiddle with the gbc thing, been researching savemiifrii. If that doesn't work my last option is to maybe try a savemii device and see if that gets around it.
I'm certain the wii bricked due to the system menu and more specificly IOS60.
Funny thing is, I also used the 4.1 updater on the new wii ( lucked out, it's actually old, has 3.1 on it

) and it also failed at the last step, the system menu update but it never bricked. So I think I have 4.1 but just not the sys menu.