Dell Latitude E6520 (Early 2011) - Manual (Page 38)

Installing The Modem Card
1. Fasten the connector attaching the modem card to the system board.
2. Insert the modem into its compartment and press on the module to connect
it to the system board.
3. Connect the modem cable to the system board.
4. Tighten the screw to secure the modem card to the computer.
5. Install the
base cover .
6. Install the battery .
7. Follow the procedures in After working inside your computer .
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