Ugreen Bluetooth 50 Usb Adapter Cm390 Driver Install ✦ Must Read
Introduction: Why the UGreen CM390? In a world where desktop PCs often lack built-in wireless connectivity, the UGreen Bluetooth 5.0 USB Adapter (Model CM390) is a lifesaver. This tiny, nano-sized dongle promises to bring high-speed, low-latency Bluetooth connectivity to your Windows computer, allowing you to connect keyboards, mice, game controllers, AirPods, and speakers.
However, a common frustration among new users is the driver installation. Unlike a standard flash drive, this Bluetooth adapter requires proper driver setup to function. If you have searched for “UGreen Bluetooth 5.0 USB Adapter CM390 driver install” because your device isn’t working out of the box, you are in the right place.
This article covers everything: automatic installation, manual driver hunting, fixing the dreaded "Code 10" error, and ensuring your adapter works with Windows 10 and 11.
Elena had been staring at the little silver UGREEN CM390 for an hour. It sat in the USB port like a tiny monolith — plugged in, lights blinking, but her Bluetooth speaker stayed silent.
She’d bought it after her laptop’s internal Bluetooth died. “Plug and play,” the box promised. But the speaker only hummed with static, and her wireless mouse refused to click.
Frustrated, she opened her laptop, navigated to Device Manager, and found the culprit: a yellow exclamation mark beside “Unknown USB Device.”
“You’re not unknown,” she whispered. “You’re a CM390.”
She pulled up UGREEN’s site on her phone and found the driver buried under “Support → Drivers → Bluetooth 5.0 Adapter (Realtek).” Her fingers flew across the keyboard: download, extract, run as administrator. The installer flickered, asked for a restart, and she complied.
When the desktop reloaded, the Bluetooth icon in the taskbar was solid.
She clicked “Add Device.” The speaker appeared instantly. Music flowed out — crisp and clear.
Her mouse jumped back to life.
Elena leaned back, glancing at the tiny silver adapter. “Took your time,” she said.
It blinked once, in what she chose to believe was a wink.
Installing the driver for your UGREEN CM390 Bluetooth 5.0 adapter Go to product viewer dialog for this item.
(Model 80889) is generally straightforward, as modern Windows systems often recognize it automatically. Quick Setup Guide
Preparation: If your computer has built-in Bluetooth, disable it first through Device Manager to avoid conflicts with the new adapter.
Plug in the Adapter: Insert the UGREEN USB dongle into an available USB port. On Windows 8.1, 10, or 11, the system may automatically install the driver within seconds.
Check for Success: Look for a Bluetooth icon in your system tray (lower right corner). If it appears, you're ready to pair devices. Manual Driver Installation
If the adapter isn't recognized automatically, follow these steps to install the official drivers: Option A: Using the Official Website Go to the UGREEN Download Center Search for product model " " (the part number for
Download the driver file corresponding to your operating system. ugreen bluetooth 50 usb adapter cm390 driver install
Extract the downloaded ZIP file, run setup.exe, and follow the on-screen prompts. Restart your computer once the installation finishes. Option B: Using the Included CD Insert the mini CD into your computer's disc drive.
Open the disc folder, locate setup.exe, and double-click to install. Troubleshooting Tips Disabled Built-in Bluetooth: If the UGREEN adapter
isn't working, ensure you haven't just turned off Bluetooth in settings, but actually disabled the hardware in Device Manager.
Driver Update: If you see an "Unknown Device" in Device Manager, right-click it and select "Update Driver" -> "Search automatically for drivers".
Are you having trouble with a specific device (like headphones or a mouse) not connecting after the driver is installed? Question about Ugreen CM390 - Galaxus
To set up the UGREEN Bluetooth 5.0 USB Adapter (CM390), you must install the specific Realtek driver to enable features like EDR (Enhanced Data Rate) and stable multi-device support. While some Windows versions might attempt a basic "Plug and Play" setup, a manual driver installation is strongly recommended to ensure full compatibility with devices like headsets, game controllers, and keyboards. Preparation and Driver Retrieval
Before you begin, ensure you have the correct driver for your operating system (Windows 7, 8.1, 10, or 11). Option 1: Official Website Download (Recommended) Navigate to the UGREEN Download Center.
Search for the product model number 80889 (this is the specific SKU for the CM390).
Download the ZIP file containing the Bluetooth 5.0 Adapter Installation package. Option 2: Installation CD
If your package included a mini-CD and your PC has an optical drive, you can use the files located there. Step-by-Step Installation Guide UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual
Q: Does the CM390 work on Linux or Mac? A: On Linux (Ubuntu/Fedora), the Realtek RTL8761B driver is baked into Kernel 5.7+. It works plug and play. On Mac, it does not work natively due to Apple’s proprietary Bluetooth stack.
Q: My driver says "Installed" but Bluetooth audio lags. A: That is not a driver issue. That is Bluetooth codec negotiation. The CM390 supports SBC and aptX. Right-click your speaker in "Bluetooth & devices" > Properties > Disable "Handsfree Telephony" to force high-quality audio mode.
Q: Do I need to uninstall the driver before physically removing the adapter? A: No. The CM390 is hot-swappable. However, if you plan to never use it again, go to Device Manager > Uninstall device to keep your system clean.
Final Checklist for Success:
Now, enjoy your wireless freedom. Your UGreen CM390 should be ready to pair with your Xbox controller, Sony headphones, or Magic Mouse. If you found this guide helpful, save it—you’ll need it the next time Windows decides to "update" your driver.
4.1 Error: "Windows has stopped this device because it has reported problems (Code 43)" This is a generic failure signal. In the context of the CM390, this usually indicates a driver version mismatch. Resolving this requires a "clean install" of the driver, ensuring the specific Realtek driver overrides the generic Microsoft driver.
4.2 Audio Stuttering (A2DP Issues) If the driver is installed but audio playback on Bluetooth headphones is choppy:
4.3 Pairing Failures Older Bluetooth caches can prevent successful pairing.
To install the UGREEN Bluetooth 5.0 USB Adapter (CM390) Introduction: Why the UGreen CM390
, you can often rely on Windows automatic setup or manually download the official driver using product code 80889. Quick Setup Steps
Plug in the Adapter: Insert the CM390 into a free USB port on your PC.
Wait for Windows: Windows 11, 10, and 8.1 usually recognize the adapter and install the necessary drivers automatically within a few seconds.
Check for the Icon: Once installed, a Bluetooth icon should appear in the lower-right corner of your taskbar. Manual Driver Installation
If your computer doesn't automatically install the device, use one of these manual methods: Official Website (Recommended): Go to the UGREEN Download Center. Search for product model 80889.
Download and run the driver file, then restart your computer when prompted.
Driver CD: If your package included a CD, insert it, locate the setup.exe file, and double-click to install. Troubleshooting Common Issues
Disable Built-in Bluetooth: If your laptop already has Bluetooth, it may conflict with the UGREEN adapter. Open Device Manager, find the built-in Bluetooth, right-click, and select Disable device before plugging in the UGREEN adapter.
LED Indicator: The adapter features a LED that flashes during pairing and stays solid when successfully connected.
Pairing Devices: To pair a device, double-click the Bluetooth icon on your taskbar, select Add Bluetooth or other device, and ensure your peripheral (e.g., headphones, mouse) is in pairing mode.
To install the UGREEN Bluetooth 5.0 USB Adapter (CM390) , first plug the adapter into an available USB port. On modern systems like Windows 10 , it is often plug-and-play
and will be recognized automatically. If it is not detected, you must install the driver manually using the included CD or the official website. galaxus.fr 1. Driver Installation Methods
You can install the drivers using one of two primary methods: Option A: Official Download (Recommended) UGREEN Download Center Search for the product model number (the SKU for CM390).
Download the driver package corresponding to your Windows version. Extract the folder and run to begin the installation. Option B: Using the Included CD Insert the driver CD into your computer's CD-ROM drive. Open the CD folder, locate , and double-click it. Follow the on-screen prompts and click until finished. 2. Critical Setup Steps Disable Built-in Bluetooth : If your laptop already has internal Bluetooth, you disable it first to avoid conflicts. Go to Device Manager , right-click your internal Bluetooth adapter, and select Disable device before plugging in the UGREEN adapter. Restart Your PC : Once the installation reaches the final step, click
and restart your computer to ensure the drivers are fully active. 3. Connecting Your Devices
Once the Bluetooth icon appears in your system tray (lower-right corner): UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual 25 Jan 2022 —
The UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / Item 80889) is designed for easy setup on Windows systems. While it is often plug-and-play on modern versions of Windows, manual driver installation may be necessary for older versions like Windows 7 or if the system fails to recognize it automatically. Installation Methods
You can install the drivers using one of the following two methods: Option 1: Official Website Download (Recommended) Visit the UGREEN Download Center. Search for the product model number 80889.
Download the corresponding driver package for your Windows version. Elena had been staring at the little silver
Extract the downloaded file and run setup.exe or tsetup.exe. Option 2: Using the Included CD Insert the driver CD into your computer's optical drive.
Open the CD folder in File Explorer and locate the setup.exe file. Double-click the file to start the installation wizard. Step-by-Step Setup Process
Preparation: If your computer has a built-in Bluetooth adapter, disable it in the Device Manager before plugging in the UGREEN dongle to avoid hardware conflicts.
Hardware Connection: Plug the UGREEN CM390 adapter into an available USB port.
Run Installer: Follow the on-screen prompts from the installer. Click Next through the setup screens.
Restart: Once the installation is complete, click Finish and restart your computer to ensure the adapter is properly initialized.
Verification: After restarting, a Bluetooth icon should appear in your Windows system tray (bottom-right corner). Compatibility Notes UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual
UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / Part Number 80889)
is a plug-and-play device for most modern Windows systems, but it may require manual driver installation for full functionality or older operating systems. device.report Installation Methods UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual
To install the UGREEN Bluetooth 5.0 USB Adapter (CM390), you can either rely on Windows automatic detection or manually install the driver from the official site. While many Windows 10/11 systems support "Plug & Play" for this device, a manual driver is often required for Windows 7/8.1 or to unlock full functionality. Quick Setup Steps
Insert the Adapter: Plug the CM390 into a free USB port on your PC.
Wait for Detection: Check the lower-right corner of your taskbar for a Bluetooth icon.
Install Driver (If needed): If the icon doesn't appear, use the provided CD or download the driver from the UGREEN Download Center by searching for model "80889". Restart: Reboot your computer to finalize the installation. Detailed Installation Methods Method A: Automatic Installation (Plug & Play) Works best on Windows 11 and 10.
Windows should automatically find and install the Realtek Bluetooth drivers within seconds.
Confirm by opening Device Manager; the adapter should appear under "Bluetooth". Method B: Manual Driver Download (Model 80889)
If your system lacks a CD drive or automatic detection fails: Official Website: Go to ugreen.com/pages/download. Search: Enter the product SKU 80889.
Download & Run: Extract the .zip file, find setup.exe, and follow the InstallShield Wizard prompts. Finish: Click "Finish" and restart your PC. Troubleshooting & Tips Question about Ugreen CM390 - Galaxus
Title: Technical Implementation and Analysis of the UGREEN CM390 Bluetooth 5.0 USB Adapter Driver Architecture
Abstract This technical paper provides a comprehensive examination of the driver installation process, hardware architecture, and software integration of the UGREEN CM390 Bluetooth 5.0 USB Adapter. As Universal Serial Bus (USB) peripherals evolve to support higher wireless standards, the interaction between the host operating system (OS) and the device firmware becomes critical for achieving advertised throughput and latency. This document analyzes the CM390’s utilization of the Realtek RTL8761B chipset, explores the driver installation mechanisms across Windows and Linux environments, and evaluates the implications of Bluetooth 5.0 protocol support on system performance.
The UGREEN CM390 is a widely deployed consumer-grade Bluetooth USB adapter designed to upgrade legacy computing hardware to the Bluetooth 5.0 standard. The transition from previous iterations (Bluetooth 4.0/4.2) to 5.0 introduces significant enhancements in speed, broadcast capacity, and mesh networking capabilities. However, realizing these benefits requires the correct installation of hardware drivers that act as the abstraction layer between the operating system’s network stack and the device’s physical hardware. This paper outlines the necessary procedures to install and validate these drivers, ensuring the device operates beyond basic plug-and-play functionality.
If Windows Update fails, go straight to the source.
.cab file > Extract All to a folder (e.g., C:\BT_Driver).