THINKPAD_Key combinations

Lenovo Thinkpad L420, L421 and L520 Function Key combinations (Notebook)

F1	key when ThinkPad logo comes up, to enter the BIOS
Fn + F1	Reserved.
Fn + F2	Lock the notebook.
Fn + F3	Select a power plan (in Windows XP, power scheme) that has been created by Power Manager, or adjust the power level by using the slider control. When you press this combination, a panel for selecting a power plan (power scheme) appears.
Fn + F4	Put the notebook into sleep (standby) mode.  To return to normal operation, press the Fn key only, without pressing a function key.  To cause the computer to return from sleep (standby) mode and resume operation, do one of the following: - Press the Fn key. - Open the LCD cover. - Turn on the power switch.
Fn + F5	Switch Wireless devices on/off.
Fn + F6	Change the webcam settings and the setting of the microphone mute button.
Fn + F8	Change the settings of the UltraNav® pointing device.
Fn + F9	Reserved.
Fn + F10	Reserved.
Fn + F11	Reserved.
Fn+PgUp	Switch ThinkLight(on selected models) on/off.  The ThinkLight is a little LED light integrated into the notebook. It helps users work in low light conditions.
Fn + Home	Increase display brightness.
Fn + End	Decrease display brightness.
Fn + Space	Enable the Full Screen Magnifier function.
Fn + ScrLk	Switch Num Lock on or off.
Fn + Pause	The same function as the Break key.
Fn + Down Arrow	Play / Pause
Fn + Up Arrow	Stop
Fn + Right Arrow	Next Track
Fn + Left Arrow	Previous Track