Locating Important Product Information; Machine Type And Model Label - Lenovo ThinkPad T420si User Manual

If your computer is shipped with a Bluetooth feature, a wireless LAN feature, a wireless WAN feature, and a
WiMAX feature, you can use the following indicators:
3 Bluetooth status
• Green: The feature is on, and the radio link is ready for use, or the data is being transmitted.
• Off: The Bluetooth feature is disabled.
4 Wireless LAN/Wireless WAN/WiMAX status
• Green: The wireless LAN feature (the 802.11b/g Standard, 802.11a/b/g or 802.11n draft 2.0), wireless
WAN feature or WiMAX feature is on, and the radio link is ready for use, or the data is being transmitted.
• Off: Wireless network devices are disabled or the radio is turned off.

Locating important product information

This section provides information to help you locate your machine type and model label, FCC ID and IC
Certification label, and the Microsoft

Machine type and model label

The machine type and model label identifies your computer. If you contact Lenovo for help, the machine
type and model number will enable support technicians to identify your computer and provide the highest
level of service.
®
Certificate of Authenticity (COA) label.
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Chapter 1 Product overview
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