IOS61 was initally released alongside IOS60. It was used by the Wii Shop Channel from the System Menu 4.0, 4.1, and 4.2 updates. Also used by Photo Channel 1.1b.

Technical details
Latest Versionv5662
TypeCommon IOS

It is composed of 15 app parts, the ticket and the TMD. This IOS is known to have SDHC support. On the vWii this IOS is missing.

Version Signing bug? STM Release Exploit? Notes
v4890 No No First release
v5405 No No
v5661 No No
v5662 No No