Lenovo ThinkPad X220 Hardware Maintenance Manual page 76

Removal steps of PCI Express Mini Card for wireless LAN/WiMAX
1
In step , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the
connectors with your fingers and gently unplug them in the direction of the arrow.
Note: Some models might have three antenna cables.
Step Screw (quantity)
2
M2 × 3 mm, wafer-head, nylon-coated (1)
When installing:
70
Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgfcm)