Using a small flat head screwdriver, gently turn the retaining screw at the bottom of the microphone counterclockwise until it stops or provides resistance.

The retaining screw is mounted to the connector and has a left-handed thread. Turning the screw clockwise locks the connector in place. Turning it counterclockwise lowers it down into the hole, releasing the connector.

Once the screw stops, do not try to loosen it further.