Steps
1. Loosen the (M2x3) screw that secures the WWAN card bracket to the system board.
2. Lift the WWAN card bracket from the WWAN card.
3. Disconnect the antenna cables from the connector on the WWAN card.
4. Slide and remove the WWAN card from its slot on the system board.
NOTE: When replacing the system board, the sticker indicating the WWAN antenna cable connections must be
relocated to the replacement system board.
Installing the WWAN card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the WWAN card and provides a visual representation of the installation procedure.
Steps
1. Connect the antenna cables to the connectors on the WWAN card. The following table provides the antenna-cable color
scheme for the WWAN card of your computer.
Table 3. Antenna-cable color scheme
Antenna Cable Color Pin Definition
White / Grey ANT0
Blue ANT1
Orange ANT2
Black / Grey ANT3
The connections are also printed on the WWAN card slot.
2. Align and slide the WWAN card to its slot on the system board.
3. Place the WWAN card bracket above the WWAN card to secure the antenna cables.
Removing and installing components
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