Gently snap off the two aerial connectors from the WiFi card.

On reassembly they simply snap back on with firm pressure, but first make sure they are positioned correctly over their sockets.

Remove a single screw adjacent to one of the aerial sockets retaining the wWiFi card, then lift it out.

On resassembly, ensure that the WiFi card is fully inserted into its sovket before angling it down and reinserting the screw.