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Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
U400
1010 Base cover (U400)
Note: Turn off the computer rst. Otherwise, it may cause permanent damage
to the computer.
Figure 1. Removal steps of base cover
Open the rubbers and remove two screws
1
, then remove the base cover in
the direction shown by arrow
2
.
2
1
1
Step Screw (quantity) Color Torque
1
M2 × 4 mm, at-head, nylok-coated (2) White 3.5 ± 0.24 kgfcm