Lenovo 20U1 Hardware Maintenance Manual page 100

Removal steps of the smart card reader,cable and bracket (for L15 Gen 1)
Step Screw (quantity)
3
M2 × 3 mm, flat-head, nylon-coated (4)
94
L14 Gen 1 and L15 Gen 1 Hardware Maintenance Manual
Torque
Color
Silver 0.181 Nm
(1.85 kgf-cm)