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I cannot turn on Bluetooth, either with the control center or in System Preferences

Bluetooth will not turn on. 21"iMac 2016. running OS11.2.3. I have tried in the control center and ion System Preferences----won't respond. What to do???

iMac, macOS 10.12

Posted on Apr 3, 2021 9:59 AM

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3 replies

Apr 3, 2021 1:39 PM in response to DLundahl

Also Reset NVRAM or PRAM on your Mac - Apple Support - 2-3 times in succession.


If that fails boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and see if the problem persists. Reboot normally and check again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


I cannot turn on Bluetooth, either with the control center or in System Preferences

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