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
Tuto] Hack la Wii en 2021 - Tutoriels - RomStation
Tuto] Hack la Wii en 2021 - Tutoriels - RomStation
Nintendo] Wii – Cracker sa Wii en 4.3E Sans Jeu – Hack LetterBomb – DragonCity