Lenovo 019923U Hardware Maintenance Manual page 74

In step 3a and 3b , unplug the connectors by using the removal tool antenna RF connector (P/N: 08K7159)
or pick the connectors with your fingers and gently unplug them in direction of the arrow.
When installing: Plug the red cable
the connector labeled AUX on the card.
Step Screw (quantity)
4
M2 × 3 mm, wafer-head, nylon-coated (2)
Removal steps of the SIM card
Some models of ThinkPad Edge 14", Edge 15", E40, and E50 might have the SIM card that the customer has
been installed. If you need to replace the system board in those models, remove the SIM card as follows:
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Hardware Maintenance Manual
3a
4
3a into the connector labeled MAIN , and the blue cable
4
3b
Color
Black
5
3b into
Torque
0.181 Nm
(1.85 kgf-cm)