Latitude 5420 Service Manual

Installing the WWAN card

If you are replacing a component, remove the existing component before performing the installation procedure.

The following image indicates the location of the WWAN card and provides a visual representation of the installation procedure.

Image: Installing the WWAN

Connect the antenna cables to the WWAN card.

The following table provides the antenna-cable color scheme:

Table 1. Antenna-cable color schemeThe table provides the antenna-cable color scheme for the WWAN card supported by your computer.
Connectors on the WWAN card	Antenna-cable color
Main (white triangle)	White
Auxiliary (black triangle)	Black

Place the WWAN card bracket on the WWAN card.
Align the notch on the WWAN card with the tab on the WWAN slot.
Slide the WWAN card at an angle into the WWAN slot.
Replace the screw (M2x2.5) to secure the WWAN bracket to the WWAN card.
NOTE:For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number, see the knowledge base article 000143678 at www.dell.com/support.