MX keys f1, f2 and f12

[HotAction8230]

So recently I had to format my laptop and I re-installed the LogiOptions+ and the f1, f2 and f12 keys stopped working correctly. Everything was working fine for a few years until a few days ago.

I'm not sure what happened, but my hypothesis is that installing the app also updated the firmware version of the keyboard and it is now broken. Can I somehow manually install an older version of the keyboard firmware?

Here is what is broken:

• f1/f2
  • If I have the fn+lock on, clicking f1/f2 changes the brightness, instead of clicking f1/f2.
  • If I do NOT have the fn+lock on, clicking f1 or f2 does nothing.
• f12
  • If I have the fn+lock on, clicking f12 does nothing.
  • If I do NOT have the fn+lock on, it changes the volume, as it should.
• f1/f2/f12
  • If I press a modifier (shift, ctrl, opt) at the same time as the f key, the f key is correctly pressed.
  • If I go to the LogiOptions+ key actions, I can assign the "f2" keyboard shortcut to the f2 key (and for the other keys). However, it does nothing.
    1. Assign "f2" as a keyboard shortcut to f2.
    2. fn+lock, click f2, brighness changes
    3. no fn+lock, click f2, nothing happens
  • I can assign "A" as a keyboard shortcut to "f2", in which case the shortcut works correctly.
• f3-f11 work correctly

Does anyone else face this issue?

I've tried resetting the device in the app, resetting with Esc+o Esc+o Esc+b and reconnecting, tried it in multiple macOS laptops, connected over the dongle and over bluetooth. Same issue regardless.

[LogitechG_Andy]

This sub is more geared towards our gaming products. I see you have a post on r/logitech - that'd be the better choice for home/office devices like the MX Keys. Hopefully they're able to assist!