Clear the area around the hole
Cut away loose or damaged drywall
Fill small holes with spackle or joint compound
Apply self-adhesive mesh tape over larger holes
Cut a drywall patch to fit the opening
Secure the patch with drywall screws or backing strips
Cover seams and screw heads with joint compound
Let the compound dry completely
Sand the repaired area smooth
Apply a second coat if needed
Sand again after drying
Prime the patched area
Paint to match the wall