A very specific topic!
Keep the Ugreen adapter unplugged from your USB port until the driver setup prompts you to insert it, or until the installation script finishes.
The UGREEN CM390 is a popular Bluetooth 5.0 USB adapter known for its plug-and-play nature. However, depending on your version of Windows (specifically Windows 10 vs. Windows 11) and your specific hardware revision, you may need to manually install drivers to get it working correctly. ugreen bluetooth 50 usb adapter cm390 driver install
Select the driver package that corresponds to your operating system (e.g., Windows 10/11 64-bit).
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. A very specific topic
The UGREEN CM390 supports up to five simultaneous active Bluetooth connections. You can pair many more devices, but only five can be actively connected at any given time.
A: Absolutely. After driver install, pair the controller via Bluetooth. Note: Xbox Series X controllers require a firmware update from Xbox Accessories app on Windows. However, depending on your version of Windows (specifically
Issue 1: "Device cannot start (Code 10)" or Yellow Triangle in Device Manager
The CM390 is fully compatible with Windows 11. Most Windows 11 systems will recognize the adapter automatically via Plug-and-Play, requiring no manual driver installation. However, if automatic detection fails, you can download the driver from UGREEN’s website using the same process described for Windows 10.
After your computer restarts, verify that Windows recognizes the adapter with its dedicated driver rather than a generic windows driver stack.
The CM390 supports both audio profiles (A2DP, HSP, AVRCP) for streaming audio to speakers and headsets, and data profiles (HID for keyboards/mice, PAN for network sharing) for peripheral connectivity.