Apple Watch series 3 42mm

My Apple Watch has 42mm Aluminum Case.Designed By Apple In California.

I dropped my watch would not let Me power off or enter My Password. Tried everything. So I unpaired My Watch on My IPhone and on My Apple Watch the above is my screen and then sometimes an red explanation point says contact Applesupportmyhelp

Also, on My IPHONE says start paring so I click start paring it goes to another screen Set Up for Myself then says put your Apple Watch up to the camera to pair but the camera doesn’t show up or come on to pair