Ugreen Bluetooth 5.0 Usb Adapter Cm390 Driver -

The , also identified by the model number 80889 , is a compact dongle designed to provide wireless connectivity for PCs and laptops. While it is generally "plug-and-play" on modern systems, certain setups require a specific driver to enable full functionality. Driver Installation Guide

With the driver properly installed, your UGREEN CM390 will provide years of reliable Bluetooth connectivity, freeing your desk from cables and expanding your computer's wireless capabilities.

Confirm any pairing codes on both devices to complete the connection.

UGREEN Bluetooth 5.0 USB Adapter CM390 Driver Go to product viewer dialog for this item. : A Complete Installation and Usage Guide (2026) ugreen bluetooth 5.0 usb adapter cm390 driver

Go to (right-click the Start button and select "Device Manager"). Expand the "Bluetooth" section. Right-click any existing Bluetooth adapter (especially those labeled "Generic Bluetooth Adapter" or with your computer's brand name) and select "Disable device." Do not uninstall them, simply disable them. Then unplug your CM390, wait a few seconds, and plug it back in. The CM390 should now become the primary Bluetooth adapter.

If the Setup.exe fails or freezes, perform a manual driver update:

Point the folder path to the extracted UGREEN driver folder and click . Technical Specifications for CM390 Specification Bluetooth Version Bluetooth 5.0 (Backward compatible with 4.0/3.0/2.1) Chipset Realtek RTL8761B Transmission Range Up to 20 meters (65 feet) in open spaces Supported Profiles A2DP, H2P, AVRCP, HID, PAN, BLE Maximum Device Connections Up to 5 devices simultaneously (different types) To help narrow down any issues, let me know: What Operating System version are you running? Is the adapter showing an error code in Device Manager? What type of device are you trying to connect? Share public link The , also identified by the model number

Open your web browser and navigate to the official . Type CM390 or the part number 80889 into the search bar.

Because the CM390 lacks official Linux support, driver stability can vary significantly between kernel versions and distributions. Success is not guaranteed, and you may experience occasional dropouts or connection issues.

On your PC, double-click the in the status bar. Click Add a device and select your device from the list. Confirm any pairing codes on both devices to

The driver acts as a translator, allowing your computer's operating system to understand and control the Realtek chip inside the CM390. Without the correct driver, your computer may detect that something is plugged into the USB port, but it won't know what to do with it. The Bluetooth menu might not appear, or the adapter may show errors in Device Manager.

to load the new Realtek Bluetooth stack.