Latitude 7420/Latitude 7420 2-in-1 Service Manual

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Installing the WWAN card

Prerequisites

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

About this task

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

installing wwan

Steps

  1. Align the notch on the WWAN card with the tab on the WWAN-card slot and slide the WWAN into the M.2 slot on the system board.
  2. Connect the antenna cables to the connectors on the WWAN card.
  3. Align and place the WWAN-card bracket and tighten the single (M2x2.5) screw securing it to the system board.
  4. Replace the WWAN-card shield over the WWAN card.
    NOTE:Insert the edges of the WWAN-card shield into the clips on the system board to secure it in place.

    WWAN shield notches on the system board.

    NOTE:For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number, see the knowledge base article 000143678 at Dell Support Site.

Next steps

  1. Install the base cover.
  2. Install the microSD card.
  3. Follow the procedure in after working inside your computer.
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