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Windows 10 18362.267 1903
Bluetooth drivers version 21.10.1.1
Whenever I try to pair a Bluetooth audio device (speaker, true wireless headphones), I only get the low-quality "headset" connection working. High quality stereo functionality is not working at all.
In device manager, I see a driver error for Microsoft Bluetooth A2DP source device in Audio controllers section.
The message is:
Windows cannot verify the digital signature of the drivers required for this device. It is possible that a recent hardware or software change installed a damaged file or signature that is incorrect, or that it is malware from an unknown source. (Code 52)
I tried reinstalling BT drivers, reconnecting BT audio devices, but nothing works. I always get this particular error.
BTW, the audio devices work 100% fine on onther non-NUC Windows 10 devices.
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NLapl1, Thank you for posting in the Intel® Communities Support.
Did you install all the Windows* updates?
Was it working fine before?
Did you make any recent hadrware/software changes?
Do you have the option to test the Intel® NUC Kit NUC8i7HVK with different Bluetooth devices? This is just to rule out a possible compatibility problem with the components that you are currently using.
Based on the driver error that you saw in "Device Manager" about Microsoft Bluetooth A2DP source device and error code 52, what we can try in order to try to fix this problem will be a clean installation of the Intel® Bluetooth and Wireless drivers:
https://www.intel.com/content/www/us/en/support/articles/000005756/network-and-i-o/wireless-networking.html
Please install the Intel® Wireless driver version 21.10.1:
https://downloadcenter.intel.com/download/28955/Intel-Wireless-Technology-Based-Driver-for-Intel-NUC?product=126143
And install the Intel® Bluetooth driver version 21.10.1:
https://downloadcenter.intel.com/download/28956/Intel-Wireless-Bluetooth-Driver-for-Windows-10-64-bit-for-Intel-NUC?product=126143
Also, try a BIOS update to the latest version 0058:
https://downloadcenter.intel.com/download/28953/BIOS-Update-HNKBLi70-86A-?product=126143
Regards,
Alberto R.
Intel Customer Support Technician
A Contingent Worker at Intel
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I tried uninstalling Bluetooth & WiFi drivers and reinstall the latest releases. I tried updating the BIOS to the latest. I applied all Windows Updates.
I still get the same error for the A2DP device in device manager.
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NLapl1, Thank you very much for letting us know those results, we are sorry to hear the issue persists.
Was it working fine before, was the option for High-Quality stereo functionality available before?
Do you have the option to test the Intel® NUC Kit NUC8i7HVK with different Bluetooth devices?
Are you still getting error code 52 when trying to install the Intel® Bluetooth and Wireless drivers?
In the following links you will find some suggestions to try to fix this problem, please verify where it says "Troubleshoot problems with Bluetooth accessories" and then choose "Audio":
https://support.microsoft.com/en-us/help/14169/windows-10-fix-bluetooth-problems
In the next link, please check where it says:
"How to fix Bluetooth after upgrading to Windows 10"
"How to fix Bluetooth audio devices connection"
"How to fix Bluetooth using Hardware and Devices troubleshooter":
Also, we can test the Wirelss driver provided by Microsoft, please follow the instructions in the link below where it says "Bluetooth audio":
The content on the above sites is not controlled by Intel. This information is offered for your convenience and should not be viewed as an endorsement by Intel for the merchants or services offered there
Regards,
Alberto R.
Intel Customer Support Technician
A Contingent Worker at Intel
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NLapl1, I just wanted to check if the information posted previously was useful for you and if you need further assistance on this matter?
Regards,
Alberto R.
Intel Customer Support Technician
A Contingent Worker at Intel
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NLapl1, Since I have not heard back from you, we are closing the case, but if you have any additional questions, just reply back or post a new question.
Regards,
Alberto R.
Intel Customer Support Technician
A Contingent Worker at Intel
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Hi, sorry for the late answer. I tried many possible solutions.
But I just found out about this:
https://support.microsoft.com/en-ca/help/4518538/bluetooth-speakers-do-not-work-after-update-4505903-is-installed
An update causes the exact problem I'm epxeriencing. The proposed solution to run
sfc /scannowin an administrator shell fixed my problem.
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Hello NLapl1, No problem at all, thank you very much for sharing that information.
Perfect, excellent, it is great to hear that the problem got fixed by following the suggestions provided by Microsoft.
Any other inquiry, do not hesitate to contact us again.
Regards,
Alberto R.
Intel Customer Support Technician
A Contingent Worker at Intel
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