Uninstall and reinstall the driver.

Bluetooth v2.0 / v3.0 / v4.0 (Depending on the specific hardware revision generation) Data Transfer Rate: Up to 3 Mbps

This article provides a complete guide on how to download, install, and troubleshoot the M-Tech BT-05 Bluetooth driver for Windows systems. What is the M-Tech BT-05 Bluetooth Dongle?

Keeping your Bluetooth driver up to date ensures optimal performance, bug fixes, and security patches. Here is how to check for and install driver updates:

Right-click and select > Search automatically for drivers . 3. Check USB Power Management

Click on Update & Security (Windows 10) or Windows Update (Windows 11).

Extract the downloaded file (e.g., using WinRAR or 7-Zip).

Networking, Dial-up, Fax, LAN access, and Headset Do You Actually Need to Download a Driver?

The BT-05 works out of the box with btusb kernel module: