Installing the WLAN card1 Insert the WLAN card into the slot on the laptop.2 Route the WLAN cables through the routing channel.NOTE: When installing the display assembly or chassis frame onto the system, the wireless and WLAN antennas must berouted correctly into the routing channels on the chassis frame.3 Connect the WLAN cables to the connectors on the WLAN Card.4 Place the metal bracket and tighten the M2x3 screw to secures the WLAN card to the system board.5 Install the:a batteryb base cover6 Follow the procedure in After working inside your system.WWAN cardRemoving the WWAN card1 Follow the procedure in Before working inside your computer.2 Remove the:a base coverb battery3 To remove the WWAN card:a Disconnect the WWAN cables from the connectors on the WWAN card [1].NOTE: The WWAN card is held in place with an adhesive foam spacer. When removing the wireless card from thesystem, make sure the adhesive pad stays on the system board/chassis frame during the prying process. If theadhesive pad is removed from the system along with the wireless card, adhere it back to the system.b Remove the M2x3 screw (1) that secures the WWAN card to the system board [2].c Lift the WWAN card to release it from the connector on the system board [3].NOTE: Ensure NOT to pull the WWAN card more than 35°, to avoid pin damage.22 Disassembly and reassembly