Fuze+ won't lock

Sorry, my bad! I missed this when I first scanned the forum: http://forums.sandisk.com/t5/Fuze/New-firmware-change-in-locked-unlocked/td-p/228834

On a related note, though, this could have been easier to find out. I downloaded a manual when I did the firmware update, and it told me to do things the old way. Was there something I missed that told me about the change?