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Key combination
Fn + 4
Fn + U
* for selected models
The FnLock switch
The FnLock is a switch that reverses the default and hidden function of a hotkey. The FnLock switch shares
the ESC key (in the upper left corner of the keyboard). To turn it on or off, press Fn + ESC. The following table
provides an example of how the FnLock switch changes the default function of the F1 key.
FnLock
Off
On
* The F1 function is application-dependent. It may have no function if the active application does not have a
definition for the key.
14
User Guide
Hidden function
Put the computer to sleep mode
Turn the rear port LED on and off
FnLock light
Off
On
Default function of the F1 key
F1 function *
Mute/Unmute sound
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