Replacing An M.2 Wireless-Wan Card - Lenovo ThinkPad X240 User Manual

10. Connect the antenna cables to the new wireless-LAN card. Ensure that you attach the gray cable to the
main connector on the card, and the black cable to the auxiliary connector on the card.
11. Reinstall the base cover assembly.
12. Reinstall the battery pack. See "Replacing the battery pack" on page 69.
13. Turn the computer over again. Connect the ac power adapter and all cables.

Replacing an M.2 wireless-WAN card

Before you start, print these instructions.
DANGER
During electrical storms, do not connect the cable to or disconnect it from the telephone outlet
on the wall.
DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock
hazard, disconnect the cables before opening the cover of this slot.
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