Lenovo ideapad 520H-15IKB Maintenance Manual page 45

Figure 6. Removal steps of PCI Express Mini Card for wireless LAN (continued)
Remove the screw 2.
Step Screw (quantity)
M2 × 3 mm, Phillips head, nylok-coated (1)
3
WLAN card +MB
Lenovo ideapad 520
Color Torque
Black 1.85±0.15 kgf*cm
41