Lenovo ThinkPad X1 Carbon 20HQ Hardware Maintenance Manual page 88

Removal steps of the wireless-LAN antenna kit
Step Screw (quantity)
3
M2 × L3 mm, flat-head shoulder, nylon-coated (2)
When installing:
Plug the gray cable into the main connector on the card; and plug the black cable into the auxiliary
connector on the card.
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Hardware Maintenance Manual
Torque
Color
Silver 0.181 Nm
(1.85 kgf-cm)