My mouse is working great on Bluetooth, but I have tried without success to get anything else to work. I am trying to connect my FitBit.
Shutting down in Preferences. When off, hold down shift/control/option and power button for 6 seconds. When it comes on, check preferences for the Bluetooth icon.
Going to system preferences, check View, then customize, but no Bluetooth to customize.
I used Disc Utility to repair my hard drive.
I noticed that in the system report when Bluetooth was clicked, it said no information.