Bluetooth is a standardized protocol for sending and receiving data via a 2.4GHz wireless link. It is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the industrial, scientific and medical radio bands. You can use Bluetooth to connect certain devices to your device without a cord. After you pair a Bluetooth device for the first time, your devices can pair automatically. Kindly refer to this guide on how to remove a Bluetooth device and connect a new Bluetooth device to MacBook.
When you are faced with this error, merely deleting the Bluetooth .plist files will not resolve this issue. This is because this solution is meant to fix the following problem “Bluetooth not available”. See this how-to article for more information on how to fix Bluetooth not available on MacBook.
To fix this issue, you will have to reset the SMC for Notebook computers with a nonremovable battery: You may shut down or leave your MacBook on. Both works despite the recommendation by Apple to have it shut down, regardless, just follow the steps below to reset the SMC.
Note: Resetting the SMC doesn’t affect the contents of NVRAM or PRAM
1: Shut down your Mac (optional). 2: On your built-in keyboard, press and hold all of the following key.See the image below for more information. - Control on the left side of your keyboard - Option (Alt) on the left side of your keyboard - Shift on the right side of your keyboard. 3: Keep holding all four keys for 10 seconds. 4: Release all keys, then press the power button to turn on your Mac.
As you can see below, after resetting the SMC and restarting our MacBook, and turning it back on, the Bluetooth option will be available and you will be able to switch the Bluetooth on again as shown below.
Now you can now search and connect new devices. See how to remove a Bluetooth device and connect a new Bluetooth device to MacBook.
Note: For Notebook computers with a battery that can be removed, kindly follow the steps discussed below.
This applies to all MacBook Pro and MacBook models introduced in early 2009 or earlier etc. - Shut down your Mac. - Remove the battery. (If you need help removing it, contact an Apple Store or Apple Authorized Service Provider.) - Press and hold the power button for 5 seconds. - Reinstall the battery. - Press the power button to turn on your Mac.
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