: Proper drivers prevent the "random disconnect" syndrome.
: If connections fail, you can Uninstall the Bluetooth device from Device Manager and then unplug/replug the dongle to force a clean reinstall. mtech bluetooth driver
You just purchased an M-Tech USB Bluetooth adapter and plugged it in for the first time. : Proper drivers prevent the "random disconnect" syndrome
Lenovo provides detailed driver pages for its laptops and workstations, often including release notes. A notable driver for the MT7921 Bluetooth adapter was released in June 2025 with version 25.040.2.220 . Lenovo’s update notes often mention alongside standard enhancements, highlighting the importance of keeping these drivers up-to-date not just for features, but for security. Lenovo provides detailed driver pages for its laptops
If you’ve installed the driver but Bluetooth still isn't working, try these quick fixes:
The installer will guide you through the process.