Installing The Wireless Card - Dell NOT22397 Owner's Manual

Steps
1. Remove the screw (M2x3.5) that secures the wireless-card bracket to the system board.
2. Lift the wireless-card bracket from the wireless card.
3. Disconnect the antenna cables from the wireless card.
4. Slide and remove the wireless card from the WLAN slot on the system board.

Installing the wireless card

Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
54 Removing and installing Customer Replaceable Units (CRUs)