After the next MacOS update, some Apple computer owners may experience problems with the Bluetooth module. Failures can occur for other reasons.
The malfunction lies in the inability of the "apple" laptop or computer to detect the nearby wireless keyboard, headset or mouse. If at this moment you click on the Bluetooth icon, which is located in the tray, the operating system informs about the unavailability of the function at that time.
Particularly annoying is the fact that a few minutes or hours ago, everything functioned normally. Viewing the system information will show that the computer is not detecting the built-in Bluetooth module. This problem is completely solvable.
The failure is most likely caused by a software malfunction, not hardware failure. Experts suggest three ways to bring your iMac or Macbook Bluetooth adapter back to life.
Reset Bluetooth adapter
This method is the simplest, although it sounds quite scary. To reset the module, follow several steps in sequence:
After the adapter has been reset, you must restart your computer for the changes to take effect. Please note that after this procedure, you will need to re-configure all gadgets connected via Bluetooth.
Deleting Bluetooth settings
This method is also quite simple. To reset the settings you need:
Upon completion of the uninstallation, you should not restart, but turn off the computer for 3-4 minutes. You can then turn it back on and try to start Bluetooth.
Reset SMC (System Management Controller) Configuration
This method is also quite simple. To clear the SMC parameters:
Provided that the problem was associated with software faults, Bluetooth will be restored. Unfortunately, it also happens that the above methods of restoring the functionality of the Bluetooth module will not help.
In this case, the problem is most likely a hardware malfunction, so the iMac or Macbook will have to be taken to service.
The Topic of Article: How to fix Bluetooth not working on Mac.