Lenovo ThinkPad X131e Hardware Maintenance Manual page 82

Step Screw (quantity)
8
M2 × 3 mm, wafer-head, nylon-coated (2)
When installing: Ensure that the connector is attached firmly.
Removal steps of thermal fan assembly and backup battery
Loosen the screws 12 in ascending alphabetic order as illustrated, but do not remove them.
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
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Hardware Maintenance Manual
Color
Black
10
11
9
Torque
0.181 Nm
(1.85 kgf-cm)