In an age where wireless peripherals are the norm, having a reliable Bluetooth connection on your PC is essential. The is a popular, compact, and affordable solution for adding Bluetooth functionality to desktop computers or upgrading older laptops.
Upon first insertion:
UGREEN does not host drivers on their main website, but the chipset manufacturer (Realtek) provides them. ugreen bluetooth 5.0 usb adapter cm390 driver
Power management is turning off the USB port or the driver conflict with Wi-Fi 2.4GHz. Solutions: In an age where wireless peripherals are the
The UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / 80889) is a compact, reliable solution for adding wireless connectivity to desktop computers or upgrading older laptops. Whether you need to connect Bluetooth headphones, mice, keyboards, or transfer files, this adapter provides stable performance. However, to ensure optimal functionality, proper driver installation is essential. Power management is turning off the USB port
Windows Driver Signature Enforcement (Windows 7/8, or older Windows 10 builds). Solution:
Press or F7 to select Disable driver signature enforcement . Re-run the setup.exe file as an administrator. Frequent Disconnections or Audio Stuttering