The Realtek Bluetooth Installer wizard will launch. Click to begin.
The Realtek Bluetooth Driver installation wizard will open. Click to begin. Accept any license agreements if prompted.
Open the extracted folder and locate the application file. Right-click setup.exe and select Run as administrator .
You can find it here: . This is the most reliable source, as it will always have the most up-to-date version of the driver. The file is approximately 145.4 MB and was last updated in August 2024, so a stable internet connection is needed.
Before running the setup file, prepare your system to avoid driver conflicts. ugreen bluetooth 50 usb adapter cm390 driver install
Choose a destination folder and click extract. Do not run the installer from inside the zip folder. Step 3: Run the Setup Connect your UGREEN CM390 USB adapter to a USB 2.0 port. Open the extracted folder and locate the setup.exe file. Right-click setup.exe and choose . Follow the on-screen wizard instructions.
Temporarily disable your antivirus software during installation. Ensure your Windows installer service is running. Audio cuts out or stutters
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 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 compatibility for basic Bluetooth tasks, installing the dedicated official drivers unlocks the adapter's full performance, stability, and audio codec capabilities. The Realtek Bluetooth Installer wizard will launch
Extract the zipped file, locate the setup.exe file, and double-click to start the installation wizard.
I can provide based on your setup. Share public link
Plug the UGREEN CM390 adapter into an available . For desktop computers, using a rear motherboard port often yields better power stability than front-panel ports.
, you can often rely on Windows automatic setup or manually download the official driver using product code . Quick Setup Steps Click to begin
This comprehensive guide covers step-by-step instructions for Windows 11, 10, 8.1, and 7. 1. Do You Need a Manual Driver? (OS Compatibility)
0 USB Adapter (CM390) driver on your system.
Fixes stuttering and low-quality audio profiles (such as the low-bitrate "Hands-Free AG Audio" glitch) on Bluetooth headphones.
The driver usually downloads as a .zip file. Right-click and extract all files to a folder.
Evan found the tiny UGREEN Bluetooth 5.0 USB adapter tucked under a stack of manuals like a secret. The silver dongle was no bigger than his thumb, but the label—CM390—felt like the name of a ship about to sail.
One of the key features of this adapter is its broad compatibility. It's designed to work with various Bluetooth-enabled devices, including headphones, speakers, mice, keyboards, printers, and game controllers. However, note that UGREEN states it is not compatible with macOS or iOS devices.