Lenovo ThinkPad T490s Hardware Maintenance Manual page 96

Removal steps of the dummy smart card reader
Step Screw (quantity)
1
M2 × 2.2 mm, flat-head, nylon-coated (2)
ThinkPad X390
Removal steps of the smart card reader
Step Screw (quantity)
1
M2 × 2.2 mm, flat-head, nylon-coated (3)
Removal steps of the dummy smart card reader
90
T490s and X390 Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)
Torque
Color
Black 0.181 Nm
(1.85 kgf-cm)