Trash Bluetooth Preferences & Shutdown the Mac
First up, delete the Bluetooth plist file and have the Mac create a new one:
/Library/Preferences/
- Close System Preferences and/or any app that was trying to use or configure any Bluetooth device with the Mac
- From the OS X Finder, hit Command+Shift+G to summon Go To Folder and enter the following path:
- Locate the file named “com.apple.Bluetooth.plist” and delete it (you may see a com.apple.Bluetooth.plist.lockfile too, if so delete that as well) – this is a system folder so you will need to authenticate with an admin user
- Head to the Apple menu and choose “Shut Down” to power down the Mac
- Wait a minute or so before booting the Mac again
- Head to the Bluetooth menu or System Preference panel to resync your hardware
(Note this is /Library/Preferences/ not ~/Library/Preferences/)