UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / Part Number 80889)
Right-click it, select , and restart your PC with the dongle plugged in. ๐ Audio Lag or Stuttering
UGREEN Bluetooth 5.0 USB Adapter Model Number: CM390 Primary Chipset: Realtek RTL8761B Interface: USB 2.0 / USB-A Bluetooth Version: 5.0
One critical distinction exists within Windows versions:
Insert the mini-CD included in the box into your computer's disc drive. Open the folder and double-click to begin the installation. Manual Update via Device Manager Right-click the Start menu and select Device Manager ugreen bluetooth 5.0 usb adapter cm390 driver
is a compact dongle that enables wireless connectivity for PCs and laptops lacking built-in Bluetooth. While many modern systems recognize it automatically, manual driver installation is often required for full functionality on older versions of Windows. Driver Installation Guide
Once the status indicator light glows with a steady white light, your adapter is ready to connect peripherals:
Download the ZIP file compatible with your operating system. 3. How to Install the UGREEN Bluetooth 5.0 Adapter Driver Follow these steps to install the driver properly:
If you have installed the driver but are still facing issues, try these common fixes: UGREEN Bluetooth 5
Letโs clear this up.
is largely a "plug-and-play" device, a hardware driver acts as the vital software translator between the physical USB adapter and your operating system (such as Windows 10 or Windows 11). Without the correct driver, your computer may not recognize the adapter, resulting in frequent disconnections, audio stuttering, or an inability to pair with peripheral devices.
UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / Part Number 80889)
If you've recently purchased the , you've made a smart move to add wireless connectivity to your desktop or laptop. This small dongle can revolutionize how you interact with your computer, allowing you to connect everything from wireless headphones and keyboards to game controllers and printers. However, to unlock its full potential, you need to understand one crucial thing: its driver. Manual Update via Device Manager Right-click the Start
What are you using (e.g., Windows 10, Windows 11)? Are you seeing a specific error message in Device Manager?
The Ugreen Bluetooth 5.0 USB Adapter CM390 driver is compatible with a range of operating systems, including:
: Unlike newer operating systems, Windows 7 requires a driver to be installed manually from the UGREEN website.