Before Servicing The Computer; Disconnect The Battery - Lenovo E470 Hardware Maintenance Manual

Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before
touching it, establish personal grounding by touching a ground point with one hand or by using an
electrostatic discharge strap.

Before servicing the computer

Carefully read this topic before servicing the computer.

Disconnect the battery

Before replacing any FRU, ensure that you have disconnected the battery by doing the following:
1. Remove the screws
2. Disconnect the battery
64
E470, E470c, and E475 Hardware Maintenance Manual
1
, and then remove the bottom cover
3 .
2
.