William I Puyallup , WA November 23, 2014 Appliance: Samsung Microwave SMH9187W/XAA Samsung Microwave Smh9187w/Xaa / : Microwave door would not stay closed. How to replace Microwave Door Latch Hook. Got a new key-d. Took off the trim around the microwave door, (die not remove door) and installed the new key-d. Very simple job. U-tube has video showing, in detail, how to do this fix. 10 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes