Hi, signed up because I also had questions about clearing my old PID from my ACCF save for use with wiimmfi. Sorry to necrobump.

I've tried modifying the data at offsets 40-43 to '00 00 00 00' and then update the checksum at 0x20​. However, AC:CF still complains that the save is invalid.

I've created a gallery to show what I'm doing: https://imgur.com/a/iSpo3

Are there any other checksums or data that need to be updated?