I have installed ios58 into my Wii. However, Hackmii still failed to work :(
Browse in the forum and find this...
I discovered that I am using ios30-v1040, and I found ios30-64-v2576 in NUSDownloader and cios30-v6174-v3.6.wad in my Darkv1.1m folder.
However, I read another comment saying that...