This ThinkPad T420 and T420i User's Guide contains detailed information on how to set up, use, and maintain the ThinkPad T420 and T420i notebook computers.
This guide covers important safety information, hardware layout, and basic operation of the ThinkPad T420 and T420i notebooks. It includes sections on indicators, connectors, power management, security features, and optional accessories.
Detailed chapters walk the user through initial setup, battery and peripheral replacement, advanced configuration, problem prevention, and troubleshooting. Appendices provide regulatory information and recycling instructions. This manual is written in Italian.
Press Fn+F4 to activate the standby (Inattività) mode.
The safety information is in the "Informazioni importanti sulla sicurezza" section and on Lenovo's support website.
Follow the instructions in Chapter 6 titled "Sostituzione della batteria".