Slide one arm of a pair of angled tweezers under the metal neck of one of the antenna cable coaxial connectors and lift straight up to disconnect it.

Lift only under the metal section of the connector, and not under the cable itself.

Repeat the process to disconnect the other antenna cable.

To reconnect the cables, use tweezers to hold the connector in place over its socket and gently press down with your finger or a spudger—the connector should "snap" into place. If you're having trouble, reposition the head and try again. Don't try to force the connector into place.