Steps
1. Align and connect the WWAN card into the slot on the system board.
2. Connect the two antenna cables to the WWAN card.
3. Align and place the WWAN bracket on the WWAN card to secure the antenna cables in place.
4. Replace the screw (M2x4) to secure the WWAN bracket on the WWAN card to the system board..
Next steps
1. Install the base cover.
2. Follow the procedure in after working inside your computer.
Battery
Lithium-ion battery precautions
CAUTION:
● Exercise caution when handling Lithium-ion batteries.
● Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and
operate the computer solely on battery power—the battery is fully discharged when the computer no longer
turns on when the power button is pressed.
● Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
Removing and installing components 21
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