This method worked for approximately 60% of BM05EV2 01 users in 2021, according to feedback threads.
The represents a classic example of Windows update friction. While Microsoft pushed for security and modern stacks, millions of budget dongles were left behind. By carefully identifying your chipset (CSR vs Realtek), using the “Have Disk” installation method, and disabling fast startup, you can restore full functionality. bm05ev2 01 bluetooth driver 2021