Ugreen Bluetooth 5.0 Usb Adapter Cm390 Driver ((install)) — Trusted

Overview

The Ugreen Bluetooth 5.0 USB Adapter CM390 is a compact and portable Bluetooth adapter that allows you to add Bluetooth connectivity to your computer or laptop. It uses the latest Bluetooth 5.0 technology, which provides faster data transfer rates, wider range, and improved compatibility.

Key Features

• Bluetooth 5.0 technology for fast and stable connections
• Compatible with Windows, macOS, and Linux operating systems
• Supports wireless connections up to 10 meters (33 feet)
• Compatible with Bluetooth-enabled devices such as headphones, speakers, mice, keyboards, and more
• Compact and portable design for easy carrying

Driver Installation

To use the Ugreen Bluetooth 5.0 USB Adapter CM390, you may need to install a driver on your computer. Here are the general steps:

1. Connect the adapter to an available USB port on your computer.
2. Download the driver software from the Ugreen website or a trusted driver repository.
3. Follow the on-screen instructions to install the driver.
4. Restart your computer to complete the installation.

Common Issues and Solutions

• No Bluetooth signal: Ensure that the adapter is properly connected to your computer and that the driver is installed correctly.
• Device not recognized: Try restarting your computer or reinstalling the driver.
• Connection issues: Move the adapter to a different USB port or try resetting the Bluetooth device.

Specifications

• Model: CM390
• Bluetooth version: 5.0
• Frequency range: 2.4GHz
• Wireless range: up to 10 meters (33 feet)
• Compatibility: Windows, macOS, Linux
• Dimensions: compact and portable design

Warranty and Support

The Ugreen Bluetooth 5.0 USB Adapter CM390 typically comes with a warranty and dedicated customer support. For more information, please visit the Ugreen website or contact their support team directly.

The UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / 80889) Go to product viewer dialog for this item.

is an ultra-compact dongle designed to add high-speed wireless connectivity to Windows-based PCs. It utilizes the Realtek RTL8761BUV chipset to support Bluetooth 5.0 with Enhanced Data Rate (EDR) and Low Energy (BLE) modes. Driver Installation Guide

While modern systems often recognize the adapter automatically, manual installation is frequently required for full functionality on older Windows versions. UGREEN Bluetooth Adapter 5.0V 20 Meter Range – CM390 ugreen bluetooth 5.0 usb adapter cm390 driver

UGREEN Bluetooth Adapter 5.0V 20 Meter Range – CM390 – 80889 – 1 Year Warranty * Bluetooth Version: 5.0+EDR (Enhanced Data Rate) * Ugreen Sri Lanka Question about Ugreen CM390 - Galaxus

UGREEN CM390 Bluetooth 5.0 USB Adapter (model number ) is a compact dongle designed to provide wireless connectivity to desktops and laptops. It utilizes the Realtek RTL8761BUV chipset to support Bluetooth 5.0 with Enhanced Data Rate (EDR). Global Brand PLC. Driver Installation Guide

For the adapter to function correctly, the appropriate driver must be installed on your system. Automatic Installation Windows 10 Windows 11

, the driver often installs automatically upon plugging the device into a USB port. Manual Installation (CD) : You can use the included driver CD. Insert it, locate the file, and follow the on-screen prompts to complete the installation. Manual Installation (Online Download) : If you do not have a CD drive, visit the UGREEN official download page and search for product model to download the latest driver package. System Restart : After installation, click

to restart your computer and ensure the adapter is fully recognized. Key Specifications & Compatibility

The adapter is built for performance and multi-device management: UGREEN CM390-80889B Bluetooth 5.0 Wireless USB Adapter

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

, follow these steps to install the driver and pair your devices. Note that this adapter is compatible with Windows 7, 8.1, and 10. 1. Driver Installation Go to product viewer dialog for this item. (official model number

) typically requires a manual driver installation to function correctly. Option A: Download from Official Site (Recommended) Visit the UGREEN Download Center Search for the product model number . Download the driver package and unzip the folder. Run the setup.exe file and follow the on-screen prompts. Option B: Use the Provided CD Insert the driver CD into your computer's disc drive. Open the folder and double-click setup.exe.

Follow the installation wizard and click Finish to restart your computer. 2. Important Troubleshooting Tip

If your computer has built-in Bluetooth, you must disable it before installing the UGREEN adapter to avoid hardware conflicts: Unplug the UGREEN adapter Open Device Manager (Right-click Start > Device Manager). Overview The Ugreen Bluetooth 5

Find your internal Bluetooth radio, right-click it, and select Disable device. UGREEN adapter back in and proceed with the installation. 3. Pairing a Device

Once the driver is installed, you should see a Bluetooth icon in your system tray.

Enable Bluetooth on your target device (phone, headset, etc.) and set it to pairing mode.

On your PC, double-click the Bluetooth icon in the status bar. Click Add a device and select your device from the list.

Confirm any pairing codes on both devices to complete the connection.

Are you having trouble with the driver specifically, or is the adapter not showing up in your Device Manager? UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual

UGREEN Bluetooth 5.0 USB Adapter (Model: CM390 / P/N: 80889)

is a compact dongle designed to add Bluetooth connectivity to PCs running Windows. While modern systems like Windows 10 and 11 often support "Plug & Play" for this device, a manual driver installation is sometimes required for full functionality or older operating systems. galaxus.fr How to Download & Install Drivers

If your computer does not automatically recognize the adapter, you can install the driver using these official methods: Direct Download from UGREEN Navigate to the UGREEN Download Center Search for the part number to find the specific driver for the Download the ZIP file, extract it, and run Using the Provided CD

Insert the mini-CD included in the box into your computer's disc drive. Open the folder and double-click to begin the installation. Manual Update via Device Manager Right-click the Start menu and select Device Manager

Locate the "Generic Bluetooth Adapter," right-click it, and select Update driver Bluetooth 5

Point the wizard to the folder where you extracted the downloaded drivers. galaxus.fr Quick Setup Guide Step 1: Disable Internal Bluetooth

: Before plugging in the UGREEN adapter, ensure any built-in Bluetooth on your laptop or motherboard is disabled in the Device Manager to avoid hardware conflicts. Step 2: Connect

: Plug the adapter into a free USB-A port. The LED indicator should flash during pairing and remain solid once connected. Step 3: Pair Devices : Double-click the Bluetooth icon in your taskbar, select Add Bluetooth or other device

, and put your peripheral (headphones, mouse, etc.) into pairing mode. device.report Key Specifications UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual

---

Part 5: The Linux User’s Guide – UGREEN CM390 Firmware & Driver

Linux kernel 5.4+ has native support for the Realtek RTL8761B, but only after you add the firmware. Without it, dmesg shows: Direct firmware load for rtl8761b_fw.bin failed.

macOS (Hackintosh or Boot Camp)

Apple’s strict hardware certification means that no generic USB Bluetooth dongle will work natively on native macOS (real Macs) without third-party kexts (kernel extensions). On Hackintosh or Boot Camp for Windows, use the Windows drivers. For macOS, you need the BlueToolFixup and BrcmPatchRAM kexts from OpenCore Legacy Patcher—but UGREEN CM390 is notoriously finicky on Mac. We recommend a Broadcom-based dongle for macOS instead.

Part 2: Do You Really Need a Separate Driver?

This is the most confusing part for new users. Here is the truth:

• 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.

Conclusion: Even if Windows auto-installs a driver, you should manually install the official UGREEN/Realtek driver for stability.

---

Chipset Identification

Under the hood, the CM390 utilizes the Realtek RTL8761B chipset. While branded as UGREEN, the drivers are essentially Realtek drivers packaged by UGREEN.

Quick diagnostic commands

• Windows: Device Manager, Event Viewer, run “msinfo32” → Components → USB.
• Linux:
  • lsusb
  • dmesg | grep -i bluetooth
  • sudo systemctl status bluetooth
  • bluetoothctl show / devices / pair

Installation notes (Windows example)

1. Plug adapter into USB-A port (prefer rear-panel USB on desktops for stable connection).
2. Wait ~30–60s for automatic driver install; check Device Manager → “Bluetooth” or “Other devices”.
3. If device shows with warning or as unknown, download vendor driver and run installer or update driver manually (right-click → Update driver → Browse).
4. After driver install, enable Bluetooth in Settings → Devices → Bluetooth & other devices.
5. Pair devices via Windows Bluetooth settings.

Step 3: Manual Installation on Windows (When Setup Fails)

If the Setup.exe fails or freezes, perform a manual driver update:

1. Extract the driver ZIP to a folder (e.g., C:\Drivers\UGREEN\).
2. Plug in the UGREEN CM390 adapter.
3. Open Device Manager (Right-click Start button > Device Manager).
4. Look for an unknown device labeled “Bluetooth” or a yellow exclamation mark under “Universal Serial Bus devices” or “Other devices”.
5. Right-click the device > Update driver > Browse my computer for drivers.
6. Click Let me pick from a list of available drivers on my computer.
7. Click Have Disk > Browse.
8. Navigate to the extracted folder and select the .inf file (usually rtbtuart.inf or rtl8761b.inf).
9. Click OK > Next. Accept any warning about unsigned drivers (Windows 7/8 only; Windows 10/11 will accept Realtek’s signed driver).
10. Restart your PC.

UGREEN Bluetooth 5.0 USB Adapter (CM390): Driver Installation & Troubleshooting Guide

The UGREEN Bluetooth 5.0 USB Adapter (model CM390) is one of the most popular dongles for adding wireless connectivity to a desktop PC or an older laptop. It’s compact, affordable, and based on the reliable Realtek RTL8761B chipset.

However, a common point of confusion is the driver situation. Does it need one? Does Windows install it automatically? What if it doesn’t work?

Let’s clear this up.