Each key in the Cloud Kit Key State Controller is considered a “View” with a number of metadata values. Views include AutoUnlock, Engram, Health, Home, ApplePay, and Manatee views. The /usr/sbin/ckksctl binary can be used to reset keys, useful when troubleshooting sync issues. To start, let’s run a status: sudo /usr/sbin/ckksctl status To reset, run the command again, with a reset verb: sudo /usr/sbin/ckksctl reset