Perhaps, you encounter the same issue that the sound buttons aren't working on Mac while they functioned well not long ago. Multiple causes will stop the volume keys from functioning. There are some common ones: Accidentally changed the keyboard preferences and enabled the function key. Bug or ...
Updating macOS is your next step if Touch ID still won't work after a fresh restart. It helps fix bugs related to Touch ID on your current OS. This also applies to Touch ID not working after a recent update. For instance, If you noticed MacBook Pro Touch ID not working after upgradin...