Dual-function keys
Some keys on the keyboard are dual-function keys. Each of such keys can provide two functions: the primary function and the secondary function. Most dual-function keys are located in the top row of the keyboard though several letter keys and the Space key are also dual-function keys.
The primary function of a dual-function key is accessed by pressing the key directly and the secondary function is accessed by pressing the key while holding down the Fn key.
Note: The Fn key is located in the lower left corner on a Lenovo keyboard.
Hotkeys
Hotkeys are dual-function keys with an icon printed on the key. The icons indicate the hidden functions of the hotkeys. To use the hidden function, hold down the Fn key and press one of the hotkeys.
| Hotkey | Function |
|---|---|
 |
Mute/Unmute sound. |
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Decrease/Increase system volume. |
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Mute/Unmute the microphone. |
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Increase/Decrease screen brightness. |
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Switch display devices. |
 |
Turn airplane mode on and off. |
 |
Open a shortcut tool bar. |
 |
Enable/Disable the touchpad. |
 |
Display thumbnails of all open apps. |
 |
Open the Windows Calculator app. |
 |
Open the Windows Snipping tool. |
 |
Play or pause playback of media. |
 |
Stop playback of media. |
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Go to the previous media file in the playlist or folder. |
 |
Go the next media file in the playlist or folder. Note: The media control hotkeys do not function for all apps. |
 |
Adjust the keyboard backlight. |
 * |
Increase/decrease the brightness of the keyboard backlight. |
* For selected models
Dual-function keys without printed icons
Some dual-function keys share keys with letter keys and numeric keys. Such keys do not have a dedicated printed icon. The following table lists the secondary functions for these keys.
| Key combination | Hidden function |
|---|---|
| Fn + B | Break |
| Fn + P | Pause |
| Fn + S | SysRq |
| Fn + K | ScrLk |
| Fn + U | Turns on/off LEDs of the rear connectors |
| Fn + N | Shows device information |
| Fn + Q | Switches operation modes |
| Fn + R | Switches between high and low screen refresh rate |
The FnLock switch
The FnLock is a switch that reverses the primary and secondary functions of top-row dual-function keys. 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 | FnLock light | Primary function of the F1 key |
|---|---|---|
| Off | Off | F1 function * |
| On | On | Mute/Unmute sound |
* The F1 function is application-dependent. It may have no function if the active application does not have a definition for the key.