Question: How adjust a loose door handle.
Option 0: Use an Allen key to loosen the set screw on the side and remove the door handle. Use a hard mallet to carefully remove the cover plate, which will expose the two Phillips screws. Take a Phillips screwdriver to tighten the screw on each side, this will secure the handle.
Option 1: Use an Allen key to loosen the set screw on the side and remove the door handle. Use a flat head screwdriver to carefully remove the cover plate, which will expose the two Phillips screws. Take a Phillips screwdriver to tighten the screw on each side, this will secure the handle.
Answer: 1