Sorry to hear that you had a mount fall into the TV. This is usually pretty rare, but happens sometimes in normal installation, or if the mounting screws used are too long or the wrong size.
The back of the TV is solid, and the unit is designed to hang.
However, I have no idea if the repair will stand the test of time. I don't know the specifications on the glue, and even if I did, I can't speak to that kind of repair. Was the repair done by an authorized Samsung technician?
What kind of assurances did you get from the person who did the repair?
Question. In today's HDTVs, almost all are designed with holes in the back so that they can be mounted. Upon attaching one screw, the actual hole that accepts the screw was broken. (It was metal so it fell inside the tv. Additionally, the back of the tv itself is plastic. That said, the repair man came over and used a "hot melt adhesive" (e.g glue gun) to glue the metal screw "acceptance" piece to the plastic backing of the tv so that the tv could be mounted again.
Will the temperature of the tv melt the glue? Is this glue strong enough? Please help, I am very nervous!
I have attached a picture to enhance visuals...