Hi Ahmed Al Waeli,
Thank you for reaching out to us regarding your concerns with the Microsoft Modern Wireless Headset. I understand that you are experiencing issues with the audio quality and settings of the headset, and you are also inquiring about a possible firmware update.
Regarding your first issue, where the received voice sounds like Darth Vader in the middle of a call, this could be caused by a firmware issue. To resolve this, I recommend that you check if there is an available firmware update for your headset. You can do this by following these steps:
- Set up your Microsoft Modern Wireless Headset in the Microsoft Accessory Center app if you haven't already.
- Open the Microsoft Accessory Center app, and then select Microsoft Modern Wireless Headset.
- Select Device details. If an update is available and you’re prompted to download and install it, select Update, then follow the instructions.
Regarding your second issue, where the headset does not disconnect from a call after the caller terminates it, this could also be caused by a firmware issue. To resolve this, I recommend that you try resetting the headset to its default settings. You can do this by following these steps:
- Plug in your headset using the USB cable.
- Slide the Power button on to turn on your headset.
- Press and hold the Answer/end call button for more than 10 seconds. While still holding down the Answer/end call button, press and release the Bluetooth pairing button.
You'll hear a message saying your headset is on and how much battery you have left. - Release the Answer/end call button.
After resetting the headset, try using it again with Microsoft Teams and see if the issue persists. If it does, please try uninstalling and reinstalling the Microsoft Teams app on your computer.
In addition, I would like to share with you these articles for more details and information on using the Microsoft Modern Wireless Headset:
Set up Microsoft Modern Wireless Headset - Microsoft Support
Use Microsoft Modern Wireless Headset in Microsoft Teams - Microsoft Support
I hope this information helps you resolve the issues you are experiencing with your Microsoft Modern Wireless Headset. If you have any further questions or concerns, please do not hesitate to reach out to us again.
Kind regards,
Marrion