Lenovo ThinkPad W520 4284 Hardware Maintenance Manual page 89

Table 27. Removal steps of Smart Card
Step Screw (quantity)
3
M2 × 3 mm, wafer-head, nylon-coated (3)
Color
Silver
5
6
5
.
Chapter 9 Removing and replacing a FRU
Torque
0.181 Nm
(1.85 kgfcm)
81