did you do that? format the sd, and have the internet connection on wii?
This is for people stuck on 4.2 with no cIOS. Make sure your sd card is formatted to FAT32 or FAT16 and your Wii is connected to the net through Wi-Fi, then download this pack, Unzip the pack and place the files and folders onto the root of your sd card. Your sd card should like this:
TAKE OUT ALL GAMECUBE MEMORY CARDS AND CONTROLLERS BEFORE PROCEEDING