Top Row of function keys not working

Anyone still having this issue? I've been having this issue for a few weeks.

The "Use all F1... as standard function keys" has always been unchecked on my system and it doesn't help to check and uncheck.

But the weirdest thing is that I just made a CLEAN install of OS X Yosemite (read: I wiped the previous drive before installing), and this issue still persists! I have no idea what to try now.

Anyone still having this issue? I've been having this issue for a few weeks.

The "Use all F1... as standard function keys" has always been unchecked on my system and it doesn't help to check and uncheck.

But the weirdest thing is that I just made a CLEAN install of OS X Yosemite (read: I wiped the previous drive before installing), and this issue still persists! I have no idea what to try now.

Kindly bring your unit to nearest Apple Authorised Service Provider and request them to run the Keyboard and Trackpad Mapper tools to fixed the problem. When trackpad replaced by Apple Technician he/she might forget to run that tools.

I had exactly this very frustrating issue after a Microsoft Office 2016 update to version 15.29.1 and corrected by simply shutting down and then starting the MacBook Air. Sometimes it is that simple, but not nearly often enough.

So grateful for Pierre Degaillande's advice, posted here over 5 years ago...

Just received shipment of a brand new MacBook Pro from Apple.

Straight out of box....function keys did not work.

Pierre's solution was absolutely spot on for me.

Many thanks Pierre.

..now to figure out why 2 finger scrolling on haptic touchpad also fails to work.... :-(

https://itunes.apple.com/au/app/brightness-slider/id456624497?mt=12

Install that, helped me.
Install it and play around a bit

I had the same problem today. Resetting the SMC solved the problem in a minute.

Resetting the System Management Controller (SMC) on your Mac - Apple Support

Thanks!!! Found this reply for my daughter and fixed her issue. Much appreciated!! 🙂

You arent. I've bought 3 keyboards from different places and none work either. is it really and OSX problem?

I spent over an hour trying other fixes recommended on Apple Support docs but this fixed the problem! It was so easy all along...thanks!

Thank you. Your post helped solve the function key problem.

Regards.

Sheldon R

Thanks a ton, Pierre. Your solution just worked.

The keyboard only lights up in dim light. Try using in a dark room to see if the function works.

3 Years on. Thanks a bunch.

same here. Did you find a solution ?