Important Product Information; Machine Type And Model Information - Lenovo ThinkPad T480 User Manual

• Blinks quickly: The computer is entering sleep or hibernation mode.
• Blinks slowly: The computer is in sleep mode.
3 Fingerprint reader indicator
This indicator shows the status of fingerprint reader. For more information, see "Using the fingerprint reader"
on page 56.
4 Caps Lock indicator
When this indicator is on, you can type uppercase letters by directly pressing the letter keys.
5
Fn Lock indicator
This indicator shows the status of Fn Lock function. For more information, see "Using the special keys" on
page 20.
6 Speaker-mute indicator
When this indicator is on, the speakers are muted.
7 Microphone-mute indicator
When this indicator is on, the microphones are muted.
9 ac power status indicator
This indicator shows the ac power and charging status of the computer.
• White: connected to ac power (battery power 90%–100%)
• Amber: connected to ac power (battery power 0%–90%)
• Off: not connected to ac power

Important product information

This section provides information to help you locate the following:

• Machine type and model information

• FCC ID and IC Certification information
• Windows operating systems information
Machine type and model information
When you contact Lenovo for help, the machine type and model information helps the technicians to identify
your computer and provide faster service.
The following illustration shows where to find the machine type and model information of your computer.
.
Chapter 1 Product overview
9