macOS Bluetooth Not Available Error Fix

What it means

The 'Bluetooth Not Available' error on Mac means macOS cannot communicate with the Bluetooth hardware inside your computer.
The Bluetooth icon in the menu bar has an X through it or shows 'Bluetooth Not Available' when you click it.
This is usually caused by corrupted Bluetooth preference files or a crashed Bluetooth system process — not a hardware failure.

Affected Models

MacBook Air
MacBook Pro
iMac
Mac Mini
Mac Studio

Common Causes

The Bluetooth preference files on your Mac have become corrupted
The Bluetooth system process (bluetoothd) has crashed and not restarted
A recent macOS update changed Bluetooth settings or configurations
Static electricity or a power surge temporarily disrupted the Bluetooth module
In rare cases, the Bluetooth hardware itself has physically failed

How to Fix It

Restart your Mac. This is the fastest fix. Go to Apple menu > Restart. Many cases of 'Bluetooth Not Available' are caused by a crashed process that restarts automatically on reboot.

Try this first — it fixes the problem in most cases without any further action.
Reset the Bluetooth module. Hold Shift + Option and click the Bluetooth icon in the menu bar. If you see a 'Reset the Bluetooth module' option, click it.

This option only appears on some macOS versions.
If you do not see it, skip to the next step.
Delete Bluetooth preference files. Open Finder > Go > Go to Folder (hold Option and click Go). Type /Library/Preferences and press Enter. Delete the file named com.apple.Bluetooth.plist. Restart your Mac.

This file stores your Bluetooth settings and paired devices.
Deleting it forces macOS to create a fresh one.
You will need to re-pair your Bluetooth devices afterward.
Reset NVRAM. Shut down your Mac. Press the power button and immediately hold Option + Command + P + R. Hold for about 20 seconds until you hear the startup chime twice (Intel Macs only).

NVRAM stores hardware settings including Bluetooth configuration.
Resetting it can clear persistent hardware errors.
Create a new user account to test. Go to System Settings > Users and Groups > Add User. Log in as the new user and check if Bluetooth works. If it does, the problem is in your original user account's settings.

If Bluetooth works in a new account, delete the preference files from your main account as described in Step 3.

When to Call a Professional

If resetting Bluetooth files and NVRAM does not fix the error, the Bluetooth hardware module may have failed.
This is uncommon but does happen, especially after liquid damage or a physical drop.
An Apple Store can diagnose whether it is hardware or software.

Frequently Asked Questions

Will I lose all my paired Bluetooth devices if I delete the preference file?

Yes — you will need to re-pair all your Bluetooth devices like keyboards, mice, and headphones.
On the device side, you usually need to hold a button to put the device back into pairing mode.
For a Magic Keyboard or Magic Mouse, hold the power button until the light flashes.

Can a macOS update break Bluetooth?

Yes — it happens occasionally.
macOS updates sometimes introduce bugs that affect Bluetooth or Wi-Fi.
Check Apple's support forums or MacRumors.com after an update to see if others are reporting the same issue.
Apple usually releases a fix within a few weeks.

My Bluetooth turns off by itself. Is that the same problem?

Not necessarily.
Bluetooth turning off randomly is usually a preference file issue or a power management setting.
Bluetooth 'Not Available' means the hardware cannot be found at all.
For Bluetooth that keeps turning off, try deleting the preference file and checking System Settings > Battery for power-saving settings that might disable Bluetooth.