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Bluetooth "not implemented" after Monterey Upgrade Macbook Pro 13 Early 2015

We upgraded a notebook to Monterey 12.4.

Its bluetooth immediately failed after the update (cannot be switched on/activated anymore).


The console displays:

bluetoothd SetPowerState failed: BT_ERROR_NOT_IMPLEMENTED 'Power on failed''


MacbookPro Retina, 13.inch Early 2015, upgraded directly to 12.4


Are there any news on this issue?

NOT IMPLEMENTED is no indication of a hardware issue!





MacBook Pro 15″, macOS 10.15

Posted on Jul 21, 2022 12:31 AM

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Posted on Jul 23, 2022 12:57 AM

After resetting the NVRAM followed by the upgrade to 12.5 Monterey bluetooth started working again. First devices showed up only as HEX numbers. Then after deleting them devices were found by name and it started working again. Thanks for the hints.

5 replies

Jul 21, 2022 2:41 AM in response to cat09182

Trying resetting NVRAM.

Keep holding down Command-Option-P-R while starting your mac and let the startup chime sound some four or five times, then release the keys and let your mac finish the startup, and see if there is any change.


If the issue persists: Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

Bluetooth "not implemented" after Monterey Upgrade Macbook Pro 13 Early 2015

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