Installing The Wireless Card - Dell NOT21990 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 off the wireless card.
3. Disconnect the wireless-antenna cables from the connectors on the wireless card.
4. Slide and remove the wireless card from the wireless-card slot on the system board.

Installing the wireless card

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the wireless card and provide a visual representation of the installation procedure.
48 Removing and installing Customer Replaceable Units (CRUs)