Right-click the downloaded .zip file and select . Open the extracted folder and look for the setup.exe file. Right-click setup.exe and select Run as administrator .
Restart your computer when prompted to finalize the installation. Insert your UGREEN CM390 adapter into a vacant USB port. Troubleshooting Common Issues
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Downloads – UGREEN US ugreen bluetooth 5.0 usb adapter cm390 driver
| Operating System | Compatibility | Notes | | :--- | :--- | :--- | | | Supported | Requires driver download from the website. | | Windows 10 | Supported | Requires driver download. | | Windows 8.1 / 7 | Partial | Support exists but is increasingly legacy; may require older driver versions. | | macOS | Not Supported | macOS generally does not support third-party USB Bluetooth adapters due to strict vendor whitelisting. | | Linux | Supported (Manual) | Works on Ubuntu/Debian, but requires manual firmware installation ( rtl8761b_fw.bin ) due to licensing restrictions. | | Xbox / PlayStation | Not Supported | Consoles do not support generic USB Bluetooth adapters. |
This error indicates a driver conflict with built-in Bluetooth hardware. Open . Expand the Bluetooth section. Right-click the internal generic Bluetooth radio adapter. Click Disable device . Unplug and reinsert the UGREEN USB adapter. Driver Signature Enforcement Error Right-click the downloaded
If you are still having issues, check the UGREEN support page for the latest updates. If you'd like, I can provide:
Activates advanced audio codecs for lower latency and clearer sound on wireless headphones. Restart your computer when prompted to finalize the
, you can typically rely on plug-and-play functionality for modern systems, or download the official driver if manual installation is required.
This is the most confusing part for new users. Here is the truth: