I had turned on NFC to use some headphones, then tried to turn it off via the Quick Settings menu, but when I would access the second page of the QS menu, the NFC icon there wasn't highlighted, and choosing that icon didn't seem to have any impact on the NFC (although I'm able to turn it on and off via the normal menu). When I was trying to figure it out, I stumbled across the function that lets you add more icons to the QS menu, and I added a few from those available - and then the NFC option disappeared. I didn't use all of the spaces in the QS, and chose "Reset" but still can't find it - not that it was working. Any ideas?