Locate the Bluetooth module cover on the bottom of the laptop

Loosen the M2.0×5.0 captive screw and remove the cover by by lifting it straight up

The Bluetooth module is connected to the laptop via a small cable with very fine wires - take care not to damage the cable when you pull the module out of the case.

Gently lift the Bluetooth module up and over the retaining clip. A plastic spudger may be useful.

Disconnect the connector being careful not to damage the fine wires on the cable.