UGREEN recently released a unified driver tool. While the box says "No driver needed," this tool resolves 99% of installation issues.
The UGREEN CM390 adapter typically uses the chipset. While Windows 10 and 11 often attempt to install a generic driver automatically, the official driver is required to unlock the full Bluetooth 5.0 features and ensure stable connectivity. 1. Download the Official Driver Visit the official UGREEN Download Center . Search for model number CM390 or "Bluetooth 5.0 Adapter."
Disconnect any Bluetooth headphones, mice, or keyboards currently paired with your system. 💻 Step-by-Step Driver Installation Guide Method 1: Automatic Plug-and-Play (Windows 10 & 11)
Are you having trouble with a (like headphones or a mouse) not connecting after the driver is installed? Question about Ugreen CM390 - Galaxus ugreen bluetooth 50 usb adapter cm390 driver install
Select the driver package corresponding to your operating system (Windows 11, 10, 8.1, or 7).
For Linux users, the CM390 driver installation process may vary depending on the distribution:
Once installed, this little adapter is a beast. You’ll get great range (up to 66ft/20m) and support for multiple devices. UGREEN recently released a unified driver tool
Provide steps to like headphones or game controllers.
| Specification | Details | |---|---| | | CM390 | | SKUs | 80889 / 80890 | | Bluetooth Version | 5.0+EDR (Enhanced Data Rate) | | Chipset | Realtek RTL8761BUV | | Transmission Distance | 20m (no obstacles) / Up to 30m in ideal conditions | | Frequency Range | 2400MHz–2483.5MHz | | Compatible OS | Windows 7, 8.1, 10, 11 (does NOT support macOS) | | Supported Protocols | A2DP, HSP, AVRCP, HID, PAN, GAVDP, DID, IOPT | | RF Output Power | 4dBm | | Package Contents | Bluetooth 5.0 adapter ×1, User manual ×1, CD driver disc ×1 | | Dimensions | 53mm × 24mm × 13mm |
If you encounter errors, such as the device not being recognized, follow these steps: While Windows 10 and 11 often attempt to
Before installing any new software, complete these preparatory steps to prevent driver conflicts:
The Ugreen CM390 Bluetooth 5.0 USB adapter is a popular, compact solution for adding wireless connectivity to desktop computers and laptops. While Windows 10 and Windows 11 often feature plug-and-play functionality for basic Bluetooth tasks, installing the official Realtek drivers is highly recommended. The official driver unlocks the adapter's full potential, ensuring stable audio streaming, broader device compatibility, and data transfer capabilities without sudden disconnections.
Open your web browser and navigate to the official .
. If your computer already has an internal Bluetooth adapter, it’s strongly recommended to disable it in Device Manager before installing the UGREEN driver. The two adapters can interfere with each other, causing connection issues.
Your device now uses the manufacturer driver instead of Microsoft's generic stack.