Ugreen Bluetooth 5.0 Usb Adapter Cm390 Driver

To set up the UGREEN Bluetooth 5.0 USB Adapter (CM390) Go to product viewer dialog for this item.

Warning:

Do not download drivers from third-party "driver update" websites. They often bundle malware or outdated files. Always use official sources. ugreen bluetooth 5.0 usb adapter cm390 driver

Automatic Detection

: Windows 10 and Windows 11 typically recognize the UGREEN CM390 automatically upon plugging it in, installing the necessary drivers within seconds. To set up the UGREEN Bluetooth 5

1. Uninstall existing Bluetooth drivers: Go to Device Manager > Bluetooth. If you see "Generic Bluetooth Adapter" or an existing driver, right-click and select "Uninstall device". Check "Delete driver software for this device".
2. Plug in the UGREEN CM390 into a USB 2.0 or USB 3.0 port (rear ports on a desktop are preferable for stability).
3. Run the installer: Extract the ZIP file you downloaded. Right-click the Setup.exe file and select "Run as Administrator".
4. Follow the wizard: Accept the EULA. The installer will copy Realtek Bluetooth Filter Driver and Serial Bus Driver.
5. Restart: The system will prompt you to restart. Do it. Do not skip the restart.
6. Post-installation check: Open Device Manager. Expand "Bluetooth". You should now see:
   1. Right-click the Start button → Device Manager.
   2. Look for an unknown device or "Bluetooth" section.
   3. Right-click the adapter → Update driver → Search automatically for drivers.
   • Windows 10 & 11 (Version 2004 and later): In theory, the adapter uses Microsoft’s native Bluetooth stack. When you plug the CM390 in, Windows will automatically install a generic driver. However, the generic driver often lacks advanced features like A2DP (high-quality audio sink) or proper HID (Human Interface Device) support. For full functionality, you need the official Realtek driver.
   • Windows 7 & 8: Absolutely yes. You need the driver. The OS does not have native Bluetooth 5.0 drivers. Without the driver, the device will appear as "Unknown Device" or "Bluetooth Peripheral Device" with a yellow exclamation mark in Device Manager.
   • Linux: Generally works out of the box with kernel 5.0+, but if you are a Linux user, you likely don’t need this article.
   • macOS: Not supported. Do not buy this for a Hackintosh or Mac.

   Driver Features and Performance

   To set up your UGREEN CM390 Bluetooth 5.0 USB Adapter Go to product viewer dialog for this item. Uninstall existing Bluetooth drivers: Go to Device Manager

   If it is working correctly:

   You will see the Bluetooth icon in the system tray, and you can pair devices directly via Settings > Bluetooth & devices.