Loosen the screws (1) on the expansion slot cover; then remove the cover (2).
Remove two screws (3) securing the MDC.
Remove the BMDC by pulling the tab (4) with your fingers. Then disconnect the modem cable (5) from the BMDC.
Turn the BMDC over. If a tool for removing the connector is included in the package with the new card, use it to disconnect the cable from the card. If no such tool is included, disconnect the cable from the card by picking up the connectors with your fingers and gently unplugging them. Then remove the card.
Connect the Bluetooth antenna cable and the modem cable to the new BMDC, and then attach the BMDC to the slot so that it is seated firmly.
Secure the BMDC with two screws which you have removed in step 5.
Replace the expansion slot cover by aligning the back side of the cover first and then tightening the screws.