Help ) easiest way to update from 4.2u to 4.3u ? ( Offline ) : r/WiiHacks
4.1U Wii won't update to 4.3 (no available updates) | GBAtemp.net - The Independent Video Game Community
HollenbackDotNet - Wii Hacking Guide
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