Some Linux distributions (Fedora 38+) include this firmware by default. Try a live USB first. Part 6: Hardware Alternatives – When the Driver Isn’t the Problem Sometimes, the UGREEN CM390 might be genuinely faulty or incompatible with your specific device. Here are superior alternatives depending on your use case.
Introduction: Why the UGREEN CM390 Remains a Top Choice ugreen bluetooth 5.0 usb adapter cm390 driver
Before buying any USB Bluetooth adapter, assume you will need to install a driver manually. Bookmark this guide, download the driver from Realtek’s site, and keep a copy on your cloud storage. This way, whether you are setting up a new PC or reviving an old one, your UGREEN CM390 will work perfectly within five minutes. Some Linux distributions (Fedora 38+) include this firmware