If Windows Update fails, go straight to the source.
Keep the UGREEN CM390 unplugged from your USB port until the driver setup prompts you to insert it, or until the software installation is fully complete. Step-by-Step Driver Installation Guide Step 1: Download the Official Driver
Evan found the tiny UGREEN Bluetooth 5.0 USB adapter tucked under a stack of manuals like a secret. The silver dongle was no bigger than his thumb, but the label—CM390—felt like the name of a ship about to sail. ugreen bluetooth 50 usb adapter cm390 driver install
: Insert the CM390 into a free USB port on your PC.
Once your system is prepared, follow these steps to execute the driver installation: Locate the downloaded UGREEN ZIP file on your computer. If Windows Update fails, go straight to the source
(Product ID: 80889) is often a "tale of two cities": a seamless plug-and-play experience for most modern Windows users, but a technical hurdle for those with older systems or conflicting hardware.
Plug the Ugreen CM390 USB adapter into a USB 2.0 or USB 3.0 port. Open the extracted folder and locate the file. Right-click setup.exe and choose Run as administrator . The silver dongle was no bigger than his
Follow these steps to get the official Realtek-based driver directly from UGREEN. Step 1: Download the Package
Here is the step-by-step installation process.
The UGREEN CM390 Bluetooth 5.0 USB adapter is a popular, compact solution for adding wireless connectivity to your desktop or laptop. While Windows 10 and Windows 11 often feature plug-and-play functionality for standard Bluetooth dongles, installing the official Realtek drivers is highly recommended. The dedicated driver ensures connection stability, prevents audio lagging, and unlocks the full bandwidth of Bluetooth 5.0.
With the driver active, you can now connect wireless peripherals like headphones, controllers, or mice. Click the and open Settings (the gear icon).