I used to press F10 to mute, F11 to decrease volume and F12 to increase volume, but all of them suddenly stopped working. If I press any of those keys now, they send me to another screen that has nothing to do with the sound volume.

How can I fix them?

  • try Fn+F10, Fn+F11 etc...
    – Tetsujin
    Mar 18, 2016 at 14:37
  • I fixed, I want to sharing the information for anyone who is having same problem with its mac volume.To change your computer’s volume, click the Volume control Volume slider in the menu bar, then drag the slider to adjust the volume. If the Volume control isn’t in the menu bar, choose Apple menu > System Preferences, then click Sound. Click Output, then select the “Show volume in menu bar” checkbox.
    – Kermit
    Mar 18, 2016 at 14:40

4 Answers 4



  • Open System Preferences
  • Select "Keyboard"
  • De-select "Use F1, F2, etc., keys as standard function keys"
  • deselecting in the system preference did not correct the problem the the F10, F11 and F12 keys are not controlling the volume. ????
    – Stephen
    Mar 28, 2019 at 20:05
  • didn't work for me either
    – Code42
    Sep 17, 2021 at 14:39

My volume-key issue occurred suddenly so it probably was not due to messing up settings manually. I detached my bluetooth keyboard and then reconnected it. The volume keys started working again.

This may not solve everyone's problem but it doesn't hurt to try if you see similar things.

  • unpair and reconnecting the device worked for me. thanks for the simple and effective tip. Somehow it would still be nice to know how it got into that weird state. Feb 18 at 16:25

If unchecking Function keys nor SMC and PRAM reset don't work, it can be a Key-remapping issue related with a hardware security mechanism against malware (as explained in the last post in https://discussions.apple.com/thread/6545759). Apple uses in store a non-accesible software tool. For me, the solution was just installing and opening this program: https://github.com/tekezo/Karabiner-Elements.

Solution taken from Top row of keyboard isn't working.


Try this so the keys can work as before again, without needing a volume slider https://youtu.be/rqYmBCxGLD4

  • 1
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    – nohillside
    Jan 17, 2017 at 19:26

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