Dell Latitude E6520 (Early 2011) - Manual (Page 46)

Installing The Wireless Wide Area Network (WWAN) Card
1. Insert the WWAN card into its connector at a 45–degree angle into its slot.
2. Connect the antenna cables to their respective connectors marked on the
WWAN card.
3. Replace and tighten the screw to secure the WWAN card to the computer.
4. Install the
base cover .
5. Install the battery .
6. Follow the procedures in After Working Inside Your Computer .
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