1.0

1.0 update
Date history
Release date	November 19, 2006 December 2, 2006 December 7, 2006
System
System Menu IOS	IOS9 IOS10 (Japan only)]]
Version History
Preceded by	System Menu Unknown Prelaunch
Succeeded by	2.0

1.0 was the "update" containing the set of titles included with the Wiis on Launch Day. It was also likely what was installed by the Wii Startup Disc. Only a handful of channels were available (Disc Channel, Mii Channel, Photo Channel), and some not even activated yet (WiiShop Channel, Weather Channel, and News Channel).

System Menu 1.0 has no version listed; this version is assumed to be 1.0 due to the next update being 2.0, but some people simply refer to this as the "Default" update. The lack of a version label may have been to avoid confusion of offline users, and also the reason there is no option to perform an update on 1.0U.

Differences from modern versions

November 19, 2006

• The Disc Channel has a different icon that cycles between showing the "Wii" logo for a few seconds and showing a grey disc.
• "Launch-Day" menu shipped with early Wiis. (Does not report a version number.)
• No weather, news or shop channel available, Updates was only able through the update options in the internet settings.
• Launching channels was a lot faster on 1.0U. There is no delay, If you press start on a channel, it immediately goes to black, with the banner music still playing. This was fixed in 1.0E and 1.0J.
• No version string or update button in the settings. Updates can only be done by performing a connection test.

Remarks

If you have a System Menu below 3.2 and wish to upgrade, use AnyRegion Changer to update.

WARNING: Be advised that if your system is shipped with 4.0 preinstalled, you can not downgrade and will brick your console.

If you have a System Menu above 3.2 and wish to downgrade, AnyRegion Changer can do this too, and it appears to do a more thorough job than some other tools. See WiiBrew:FAQ#Downgrading?.