Hold the mounting bracket at eye level on the wall and mark the screw locations with a pencil.
Verify that the mounting bracket is even using a level.
Pre-drill the four holes in the wall where the bracket will go. Remove the screws from the wall.
Press one toggle into each hole, and hammer the toggle until it is flush with the wall surface.
Place the mounting bracket on the wall, lining up the holes with the toggles. Drive one screw into each toggle to secure the bracket to the wall.
Hook the television on to the mounting bracket and verify that the television is fully supported and not able to shift around.