that icon block to the left of the battery block is the camera signal. I am having similar problems. If there is no HD in that block there is no image signal. That is why the camera functions are grayed out. Can't set the camera if it isn't connected. Mine comes and goes. Right now it looks like it is permanently gone, then it came back. Sometimes it starts and stops with a poor image signal message. This is when I am sitting next to it, not flying. It does it when I am flying also. Driving me crazy. Also, when I hit that block it was opening a transmission menu with none of the icons on the left blue. Now all it does is open the wifi login menu, with that icon blue, to change name or PW. I hit apply and nothing happens. Tried 3 phones and a tablet. It seems to do the same thing on all of them and one is an approved device, the other 3 are not.