: None. There are no confirmed "patch notes" or features associated with this specific code.
If you meant something else (detailed spec, changelog, or a different naming), tell me which one and I’ll produce it.
Since this string doesn't match standard Apple iOS versioning (which typically follows formats like
If your Wii is struggling to launch newer retail discs or backups, "updating" to v5661 is the standard fix. It remains a foundational piece of Wii system maintenance.
To successfully deploy or update a device with this configuration, follow these streamlined steps: 1. File Integrity Check Download the full IPSW or OTA package.