Ugreen Bluetooth 50 Usb Adapter Cm390 Driver Install | LEGIT ◎ |
To install the UGREEN Bluetooth 5.0 USB Adapter (CM390) , first plug the adapter into an available USB port. On modern systems like Windows 10 , it is often plug-and-play
and will be recognized automatically. If it is not detected, you must install the driver manually using the included CD or the official website. galaxus.fr 1. Driver Installation Methods
You can install the drivers using one of two primary methods: Option A: Official Download (Recommended) UGREEN Download Center Search for the product model number (the SKU for CM390). ugreen bluetooth 50 usb adapter cm390 driver install
Download the driver package corresponding to your Windows version. Extract the folder and run to begin the installation. Option B: Using the Included CD Insert the driver CD into your computer's CD-ROM drive. Open the CD folder, locate , and double-click it. Follow the on-screen prompts and click until finished. 2. Critical Setup Steps Disable Built-in Bluetooth : If your laptop already has internal Bluetooth, you disable it first to avoid conflicts. Go to Device Manager , right-click your internal Bluetooth adapter, and select Disable device before plugging in the UGREEN adapter. Restart Your PC : Once the installation reaches the final step, click
and restart your computer to ensure the drivers are fully active. 3. Connecting Your Devices To install the UGREEN Bluetooth 5
Once the Bluetooth icon appears in your system tray (lower-right corner): UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual 25 Jan 2022 —
Part 6: Verifying a Successful Installation
How do you know you are done? A successful CM390 driver install looks like this: Part 6: Verifying a Successful Installation How do
- Device Manager: Shows "Realtek Bluetooth 5.0 Adapter" under Bluetooth (no yellow exclamation).
- System Tray: The Bluetooth icon is white and functional.
- Range: You can walk at least 10 meters (30 feet) from your PC without disconnecting.
- Speed: Transferring a file between your phone and PC takes seconds (Bluetooth 5.0 vs 4.2 is roughly 2x faster).
Common Problems & Fixes
10. Final Checklist & Pro Tips
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).
