I've tried it with WAD Manager 1.5 and 1.4 and it didn't work when I've selected both of the two files to install, instead of installing it I got an error message. I did exactly as the guide told me to do. I did select the IOS 36 as told, but I didn't see a way to skip the IOS by pressing B, inside the WAD Manager.
My Wii is at 4.2U Version, but it's not entirely bricked, it still runs the Wii Menu and its channels including the HomeBrew Channel, but my WiiKey 1 modchip is entirely bricked. It can't run any Backup copies. And goes to Error 003, something like that, everytime I put on a Backup Game. Before i've updated it to 4.2U it was at a 3.1U version and my Wii Key was partially bricked it could still run some Backup copies of the Wii, but not all of them. Will downgrading my Wii Firmware back to 3.2 make my Wii Key useable once again?