1070 Coin-Cell Battery - Lenovo ThinkPad T490 Hardware Maintenance Manual

Removal steps of the wireless WAN card
Step Screw (quantity)
2
M2 × 2.5 mm, big-head, nylon-coated (1)
When installing:
• For WWAN card with two antenna cables: ensure that you connect the orange cable to the main
connector, and the blue cable to the auxiliary connector.
• For WWAN card with four antenna cables: ensure that you connect the orange cable to the main
connector, the blue cable to the auxiliary connector, the white and grey cable to the M1 connector, and
the black and grey cable to the M2 connector.

1070 Coin-cell battery

For access, remove these FRUs in order:
• "1020 Base cover assembly" on page 65
Removal steps of the coin-cell battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)
.
Chapter 8 Removing or replacing a FRU
71