Windows 10: Bluetooth Handsfree Microphone Stopped Working After Update

Hi,I have a Sennheiser TW2 paired with my desktop and laptop, both running Windows 11. After an update in late 2023, the microphone on my hands-free no longer works on my laptop. I have tried updating all the drivers, pairing the hands-free with my laptop again and resetting the hands-free to no avail. I have another Sennheiser headset which works fine with my laptop. I'm at a loss as to what to do next.On my desktop, the microphone properly shows the input format, as per the screenshot below:However, on my laptop, input format is emptyesktop Specificationsevice name ***Processor AMD Ryzen

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Handsfree microphone not working

Hi Carlo

I am using a wired handsfree

My laptop is Asus K556U.

This handsfree microphone works properly on my phone.It used to work well on laptops, But it does not work when I update...

 

Bluetooth handsfree?

it works the same everytime:

- connect bluetooth to car as handsfree

- find contact and initiate call

- while 'connecting' checking menu confirms 'handsfree on'

- once connected, 'handsfree off' and call is routed to handset

- menu to turn 'handsfree on' works and call is transferred to car



initiating call from car works fine



so the Blackjack / Windows Mobile / or the Bluetooth protocol is incorrectly selecting 'handsfree off' at the moment the call is connected



everything else works fine, dialing from car, answering calls, switching lines, etc.



interestingly, I tested the Samsung A717 and it works correctly, suggesting the Samsung Bluetooth implementation is correct and it's a WM5 thing

 

Handsfree mic bluetooth does not work

Hi,

Thanks for the reply and appreciate your efforts to work on this issue.

• Were you able to either update or reinstall the Bluetooth driver on the PC?
  

Step 1: Suggest you to set the audio device as default and check if that helps.

Refer to the steps under the section ‘Set default device’ from this article.

https://support.microsoft.com/en-us/help/4026994/windows-10-fix-sound-problems

Step2: Further, you may also want to uninstall the Bluetooth driver from Device Manager and reinstall the latest driver to check if that helps.

Refer to the steps under the section ‘Uninstall the Bluetooth adapter in Device Manager’ from this article.

Fix Bluetooth problems in Windows - Microsoft Support

The BthHFSrv is the Bluetooth hands free service. This service enables wireless Bluetooth headsets to run on your computer. If this service is stopped or disabled, then Bluetooth headsets will not function properly with this machine.

Let us know the result of the steps performed so that we can help you further.

Awaiting your reply.

Regards,

Srimadhwa B

Microsoft Community-Moderator