Chances are good that you use at least one wireless Bluetooth device with your Mac. Many Mac users have a Magic Mouse or Magic Trackpad paired with their desktop Macs. Many also have wireless keyboards, speakers, phones, or other devices that connect via a wireless Bluetooth connection.
How to Fix a Bluetooth Problem with Your MacBook
Bluetooth is useful for peripherals that are always connected to your Mac and that you only use occasionally. However, Bluetooth connectivity can cause problems if things stop working as expected. These solutions can help.
Before you immediately delete a preference file on your Mac, try these simple solutions. They might fix the problem.
Turn the Bluetooth device off and then on again.
