Lenovo K4450A Hardware Maintenance Manual page 76

Removal steps of the LCD unit and the base cover
Release the antenna cables from the cable guides. Remove the screws
Step Screw (quantity)
1
M2.5 × 5 mm, flat-head, nylon-coated (6)
Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with tapes.
Attention: When you route the cables, ensure that they are not subject to any tension. Tension could
damage the cables and wires.
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Hardware Maintenance Manual
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1
1
1
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1
1
1
Color Torque
Black 0.392 Nm
(4.0 kgf-cm)