Avoid using external USB hubs; plug it directly into the motherboard. Driver installation fails halfway through
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When you plug in your Ugreen Bluetooth 5.0 USB Adapter CM390, your computer may not automatically recognize it. This is where the driver comes in – it's a piece of software that communicates with your operating system and allows your computer to understand the adapter's functionality. Installing the correct driver ensures that your adapter works properly, and you can enjoy all its features.
Once your system is prepared, follow these steps to execute the driver installation package. Unzip the Files ugreen bluetooth 50 usb adapter cm390 driver install
Now, enjoy your wireless freedom. Your UGreen CM390 should be ready to pair with your Xbox controller, Sony headphones, or Magic Mouse. If you found this guide helpful, save it—you’ll need it the next time Windows decides to "update" your driver.
Temporarily disable your antivirus software during installation. Ensure your Windows installer service is running. Audio cuts out or stutters
Plug-and-play is usually supported. Windows installs a generic driver automatically. However, installing the official UGREEN Realtek driver is highly recommended to fix audio lagging or connection drops. Avoid using external USB hubs; plug it directly
Open the newly extracted folder and look for the application executable file, typically named . Right-click setup.exe and choose Run as administrator .
Most users running Windows 10 or 11 will find that the UGREEN CM390 works immediately after plugging it in. Here’s what to expect:
Even with the best instructions, you might encounter a hiccup. Here are some common problems and their solutions. This is where the driver comes in –
Your installation experience depends entirely on your Windows version.
so Windows recognizes it as the primary Bluetooth source. The Manual Quest for Drivers
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