Ensures connectivity with newer Bluetooth devices (headphones, gaming controllers).
If you see VID_0BDA (Realtek) and PID_8771 or A729 , your device is a class adapter – the “bm05ev2 01” likely refers to a firmware or PCB revision. bm05ev2 01 bluetooth driver 2021
If you prefer a manual approach, you can attempt to update the driver yourself: Press the Windows Key + R to open the Run dialog box
If your device works initially but stops working after you reboot your PC, the background service is likely failing to trigger. Press the Windows Key + R to open the Run dialog box. Type services.msc and hit . Scroll down and locate Bluetooth Support Service . Right-click it and choose Properties . Change the Startup type dropdown menu to Automatic . Right-click it and choose Properties
If you encounter any issues during the installation process or after installing the driver, here are some common troubleshooting steps:
Many Bluetooth 4.1 and 5.0 drivers faced "Memory Integrity" conflicts in Windows 11 (specifically version 22H2), preventing installation unless certain security features were disabled. Update Evolution: Major manufacturers like
Extract the downloaded folder to a location like your Desktop. Open again. Right-click your BM05EV2 01 device and click Update driver . Choose Browse my computer for drivers .
