Under the hood, the CM390 utilizes the chipset. While branded as UGREEN, the drivers are essentially Realtek drivers packaged by UGREEN.
5.0 (supports Bluetooth 4.2/4.0 backward compatibility) Operating System: Windows 7/8.1/10/11 Chipset: Realtek (usually RTL8761BUV) Interface: USB 2.0 By ensuring you have installed the correct Ugreen Bluetooth 5.0 USB adapter cm390 driver Go to product viewer dialog for this item. , you can achieve a seamless wireless experience.
Modern versions of Windows 10 and Windows 11 automatically recognize the hardware and install the necessary drivers when you plug in the device. Simply plug the adapter into an available USB port. Windows will handle the rest automatically. You'll typically see a Bluetooth icon in the system tray in the bottom-right corner once it is ready. No manual driver download is required.
Extract the ZIP file, double-click the setup.exe executable, and follow the on-screen prompts. ugreen bluetooth 5.0 usb adapter cm390 driver
Even with careful installation, you might encounter problems. Here are the most frequent issues and their solutions.
Plug-and-play functionality. Built-in Windows drivers handle basic operations, though the official Realtek package provides maximum stability.
You can now proceed to pair your Bluetooth devices. Under the hood, the CM390 utilizes the chipset
, the driver often installs automatically upon plugging the device into a USB port. Manual Installation (CD) : You can use the included driver CD. Insert it, locate the file, and follow the on-screen prompts to complete the installation. Manual Installation (Online Download) : If you do not have a CD drive, visit the UGREEN official download page and search for product model to download the latest driver package. System Restart : After installation, click
: A verified driver package (approx. 73 MB) is also hosted on OEMDrivers Installation Steps Plug the adapter into a USB 2.0 or 3.0 port from the downloaded folder or provided CD. Follow the on-screen prompts and restart your computer once finished. Troubleshooting : If you have built-in Bluetooth, you must disable it in the Device Manager before the UGREEN adapter will work. Key Features UGREEN CM390
Ultimate UGREEN Bluetooth 5.0 USB Adapter (CM390) Driver Guide , you can achieve a seamless wireless experience
Some users have reported that Windows 10 may experience conflicts if a built-in Bluetooth driver is already present on the system. If the CM390 doesn't work after automatic installation, you may need to disable the existing Bluetooth driver first. Go to Device Manager , find any existing Bluetooth adapters, right-click them, and select "Disable device." Then, unplug and re-plug the CM390 to trigger a fresh driver installation.
USB 3.0 ports can cause wireless interference. Plug the CM390 into a black USB 2.0 port for optimal signal clarity. 🌐 Windows 11 Compatibility
If driver fails to load, download and run the driver package from UGREEN’s site, then restart.
While the adapter works in USB 3.0 ports, plugging it into a USB 2.0 port can sometimes reduce interference.