Installing the driver for your UGREEN CM390 Bluetooth 5.0 adapter Go to product viewer dialog for this item.
(Model 80889) is generally straightforward, as modern Windows systems often recognize it automatically. Quick Setup Guide
Preparation: If your computer has built-in Bluetooth, disable it first through Device Manager to avoid conflicts with the new adapter.
Plug in the Adapter: Insert the UGREEN USB dongle into an available USB port. On Windows 8.1, 10, or 11, the system may automatically install the driver within seconds.
Check for Success: Look for a Bluetooth icon in your system tray (lower right corner). If it appears, you're ready to pair devices. Manual Driver Installation
If the adapter isn't recognized automatically, follow these steps to install the official drivers: Option A: Using the Official Website Go to the UGREEN Download Center Search for product model " " (the part number for
Download the driver file corresponding to your operating system. ugreen bluetooth 50 usb adapter cm390 driver install
Extract the downloaded ZIP file, run setup.exe, and follow the on-screen prompts. Restart your computer once the installation finishes. Option B: Using the Included CD Insert the mini CD into your computer's disc drive.
Open the disc folder, locate setup.exe, and double-click to install. Troubleshooting Tips Disabled Built-in Bluetooth: If the UGREEN adapter
isn't working, ensure you haven't just turned off Bluetooth in settings, but actually disabled the hardware in Device Manager.
Driver Update: If you see an "Unknown Device" in Device Manager, right-click it and select "Update Driver" -> "Search automatically for drivers".
Are you having trouble with a specific device (like headphones or a mouse) not connecting after the driver is installed? Question about Ugreen CM390 - Galaxus
UGREEN Bluetooth 5.0 USB Adapter (Model CM390) is a compact dongle designed to add high-speed, long-range wireless connectivity to PCs. While newer Windows versions may handle it automatically, a manual driver installation is often required for full compatibility on Windows 7, 8.1, and 10. device.report 1. Driver Installation Methods You can install the drivers through two primary methods: Official Website (Recommended): Navigate to the UGREEN Download Center Search for product model Download the ZIP file containing the Realtek Bluetooth Drivers Extract the files and run Provided Driver CD: Insert the CD into your computer's drive. Locate the folder corresponding to the and double-click to begin the UGREEN installation wizard 2. Step-by-Step Setup Guide UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual Installing the driver for your UGREEN CM390 Bluetooth 5
Here’s a complete content guide for installing the driver for the UGREEN Bluetooth 5.0 USB Adapter (Model: CM390).
You can use this for a blog post, help desk article, user manual, or FAQ section.
Here is the honest truth: Windows 10 and Windows 11 usually install the driver automatically. If you are on a recent version of Windows, you can often just plug the CM390 in, wait 30 seconds, and pair your headphones.
But why are you searching for drivers? Because sometimes Windows Update is slow, you are offline, or you are using Windows 8, 7, or an older build of Windows 10. In those cases, you need to do it manually.
After the ugreen bluetooth 50 usb adapter cm390 driver install is complete, check that you actually have Bluetooth 5.0.
Method A: Device Manager → Bluetooth → Right-click your adapter → Properties → Advanced tab. Look for "LMP (Link Manager Protocol) version". The "Plug and Play" Myth Here is the
Method B: Download "Bluetooth Version Detector" (free tool). Run it. It will show the active version.
If you see LMP 8.x: You are running a generic driver. Re-do Method 3 to force the Realtek 5.0 driver.
Before you give up on your UGREEN CM390, run through this final checklist:
☐ Physical port: Avoid USB 3.0 ports (blue inside). Use USB 2.0 (black/grey). USB 3.0 emits radio noise that kills Bluetooth 2.4GHz signals. ☐ USB Extension cable: If the dongle is plugged into the back of a metal tower PC, use a short USB 2.0 extension cable to bring the adapter into open air. This doubles range. ☐ Disable onboard Bluetooth: If your laptop has built-in Bluetooth, disable it in BIOS or Device Manager. Two active Bluetooth radios will conflict. ☐ Run the official UGREEN tool (Method 4) even if Windows says the driver is installed. It cleans orphaned registry keys. ☐ Restart, don't shut down. Windows Fast Startup often prevents Bluetooth drivers from loading correctly. After install, do a full Restart (not Shutdown + Power on).
Cause: 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.
Fix:
If Windows does not automatically install the driver, you have two options: