Important information about system updates | Wii U | Support | Nintendo
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
SantamealDome 🎁 on X: "[Wii] The Wii system update servers and the Wii Shop Channel (you should still be able to access it to re-download purchases) have down for a while today.
Wii U Internal Storage Upgrades are possible | GBAtemp.net - The Independent Video Game Community
Wii Dual - HDMI, RGB and Component Upgrade | RetroRGB