This happened to me and it was a huge pain! I had to take all the fairings off to remove the front cowl and retrieve them. When replacing them, I put a strip of tape underneath each one to prevent them from sliding down.
When I removed my nose cone to get to the 12V Aux plug a barrel plug fell out. Couldn't for the life of me figure where it came from. Then when replacing the screen I lost on of the barrel plugs into the nose cone. All I can figure is that they did the same thing when the put the bike together and I got an extra that I ended up needing!!
I wish I had read this before attempting to fit a new screen on Sunday!
Very pleased that forum had a link to the YouTube vid for removing the front fairing and plastics. At least I was able to corrosion proof all the connectors and bolts in there while I was at it!