Click the download link on that page to get the driver package. It is typically distributed as a ZIP file. Once downloaded, navigate to your Downloads folder and extract the contents of this ZIP file to a location you can easily find, such as your Desktop.
This article covers everything: automatic installation, manual driver hunting, fixing the dreaded "Code 10" error, and ensuring your adapter works with Windows 10 and 11.
Windows loaded a generic Microsoft driver instead of the Realtek driver. The generic driver recognizes the USB device but cannot turn on the Bluetooth radio. ugreen bluetooth 50 usb adapter cm390 driver install
In a world where desktop PCs often lack built-in wireless connectivity, the UGreen Bluetooth 5.0 USB Adapter (Model CM390) is a lifesaver. This tiny, nano-sized dongle promises to bring high-speed, low-latency Bluetooth connectivity to your Windows computer, allowing you to connect keyboards, mice, game controllers, AirPods, and speakers.
0 USB Adapter (CM390) driver on your system. Click the download link on that page to
. Sometimes a simple reboot resolves the issue, as the OS may need to properly recognize the newly installed hardware.
(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. In a world where desktop PCs often lack
What are you seeing in Device Manager?
The UGREEN Bluetooth 5.0 USB Adapter (model CM390, also sold as part numbers 80889 and 80890) is a popular, compact solution for adding wireless connectivity to a PC or laptop. It’s designed to let you connect everything from wireless headphones and speakers to a mouse, keyboard, and even a game controller—all without the need for messy cables. As a Bluetooth 5.0 device, it offers improvements in transmission speed, signal stability, and power efficiency over earlier versions. Its tiny, low-profile design means you can plug it in and leave it in place, and it has an LED indicator to show its status. It can even connect to up to five different Bluetooth devices at the same time, making it incredibly useful for a tidy, versatile desktop setup.
After your computer reboots, verify that the system correctly recognizes the adapter with its dedicated driver. Right-click the Start menu and open . Expand the Bluetooth dropdown menu.
cd usb sudo make install cd .. sudo cp rtkbt-firmware/lib/firmware/rtl8761bu_fw /lib/firmware/ sudo cp rtkbt-firmware/lib/firmware/rtl8761bu_config /lib/firmware/