I just have bought a new Lenovo Ideapad S400u notebook, and it is not default F1-F12, it is default mute button, refresh, more brightness, less brightness…
I've downloaded "Lenovo Keyboard Slim Fn Switcher" or something like that, but it didn't work.
Then, how can I change Fn function to get my F1-F12 buttons? I'm running Windows 8.1.
Best Answer
I think the Lenovo IdeaPad S300/S400/S400u/S405 User Guide V2.0 (pdf) has what you want on page 12 in Chapter 2. Learning the basics where it says:
By default, the hotkey functions are accessible by pressing the appropriate hotkey. However, you can disable the hotkey mode in the BIOS setup utility.
To disable the hotkey mode:
Note: When hotkey mode is disabled, press the Fn key and the appropriate hotkey to access the corresponding hotkey function.