Lenovo 10w Hardware Maintenance Manual page 40

Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part.
• Logic card to plastic
Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card.
Notes:
• Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you
have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table
for each step.
• Ensure torque screwdrivers are calibrated correctly following country specifications.
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Lenovo 10w Hardware Maintenance Manual