1100 Backup Battery - Lenovo ThinkPad Edge E431 Hardware Maintenance Manual

Removal steps of the wireless LAN card
1
In step , unplug the connectors by using the antenna RF connector removal tool or pick the connectors
with your fingers and gently unplug them as shown.
Step Screw (quantity)
2
M2 × 3.5 mm, wafer-head, nylon-coated (1)
When installing: Plug the gray cable into the connector marked MAIN or M, and the black cable into the
connector marked AUX or A on the card.

1100 Backup battery

For access, remove these FRUs in order:
• "1020 Battery pack" on page 63
72
Hardware Maintenance Manual
1
1
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)