Lenovo V4400u Hardware Maintenance Manual page 56

Remove the hard disk drive from the slot
When installing: Ensure that the hard disk drive connector is attached firmly.
Removal steps of the hard disk drive bracket
Remove the screws 1 .
Step Screw (quantity)
1
M3 × 3 mm, flat-head, nylon-coated (4)
50
Hardware Maintenance Manual
2 .
1
1
1
1
Color
Silver
Torque
0.392 Nm
(4.0 kgf-cm)