ThinkPad T420 and T420i User Guide, introduces the features and characteristics of the product, including the layout of the product's appearance, buttons, sockets and indicators, as well as how to use the product's functions.
This manual begins with important safety instructions, regulatory notices, and warranty information for the ThinkPad T420 and T420i. It explains the location of buttons, ports, indicators, and provides an overview of the hardware specifications and supported ThinkVantage software.
Subsequent sections cover how to use the computer, manage power and battery, connect peripherals, upgrade components, install operating systems, and perform troubleshooting and recovery. Support resources and legal compliance information are also included.
Press Fn+F4 to activate standby (sleep) mode.
Press Fn+F12 to activate hibernate mode.