My Fenix 8 buttons are unreliable. Don't push hard enough, nothing happens. Push too hard or too long something unwanted happens. I wrote Garmin and they responded with:
The buttons did change on this watch due to the dive abilities of this watch, so they might take
some getting used to. There is a calibration.
The following steps will allow you to calibrate the buttons of your watch and possibly resolve the
button issue you are experiencing.
1. Plug your watch into a Windows PC or a Mac that has the ability to read MTP devices (a
third party program may be needed for your Mac to see the watch as a drive).
2. Locate the drive for your watch on the computer, and open the drive.
3. Place the KEY_CALIBRATION.BIN file in the Internal Storage of your watch. It should not be
placed in a subfolder.
4. Disconnect your watch from the computer.
The watch will go to a button calibration screen. Press each button fully a couple times. A green
check will appear when the button is calibrated.
After calibration has completed, turn off touch on your watch, and test the buttons to ensure they
are working.
If the buttons are still not working, let us know.
Unfortunately, the KEY_CALIBRATION.BIN file was NOT included in the email. Does anyone have a clue where I can get it. I loved my Fenix 6 and my Epix 2 but am beginning to regret I bought the Fenix 8.
