How to Connect the Nintendo Wii to Wi–Fi: 15 Steps (with Pictures)
How to Softmod Your Wii (4.3) U/E/K/J : 4 Steps - Instructables
After performing a successful connection test on a 4.3U console, this message pops up after agreeing to perform a system update (details in comments) : r/WiiHacks
How to Softmod Your Wii (4.3) U/E/K/J : 4 Steps - Instructables