Ugreen Bluetooth 50 — Usb Adapter Cm390 Driver Install

✅ UGREEN Bluetooth 5.0 USB Adapter CM390 – Driver Installation Guide

The CM390 typically uses a Realtek or MediaTek chipset. On Windows 10/11, drivers usually install automatically. If not, follow these steps:

• Go to a trusted driver repository (e.g., Station-Drivers or Microsoft Update Catalog).
• Search for "Realtek Bluetooth 5.0 Adapter" or "RTL8761B" .
• Safe link: Use Microsoft Update Catalog (search for "Realtek Bluetooth 5.0").

• Device Manager: Shows "Realtek Bluetooth 5.0 Adapter" under Bluetooth (no yellow exclamation).
• System Tray: The Bluetooth icon is white and functional.
• Range: You can walk at least 10 meters (30 feet) from your PC without disconnecting.
• Speed: Transferring a file between your phone and PC takes seconds (Bluetooth 5.0 vs 4.2 is roughly 2x faster).

Fix:

7. Troubleshooting: Code 43, Code 10, and Hidden Devices

If you see a yellow triangle in Device Manager, here is the fix. ugreen bluetooth 50 usb adapter cm390 driver install

5. Method 3: The "Generic Bluetooth Radio" Fix

Sometimes the driver installs, but Windows uses a generic Microsoft driver that lacks Bluetooth 5.0 features. Here is how to force the correct driver. ✅ UGREEN Bluetooth 5

Method 2: The "Realtek" Truth (The Driver you actually need)

Here is the secret UGREEN doesn't print on the box: The CM390 uses a Realtek chipset (usually the RTL8761B). You do not need "UGREEN software" – you need the Realtek Bluetooth driver. Go to a trusted driver repository (e