sudo apt update sudo apt install firmware-realtek sudo modprobe -r btusb sudo modprobe btusb
USB 3.0 ports emit radio interference at 2.4 GHz. Use a USB 2.0 port or a 1-meter USB extension cable to distance the dongle from the port. 5.0 bqb chipset website 75270 driver download
Plugging a 5.0 BQB 75270 dongle into your PC often triggers an automatic driver installation. However, Windows Update sometimes delivers a generic Microsoft Bluetooth driver that limits functionality. Benefits of installing the correct driver include: sudo apt update sudo apt install firmware-realtek sudo