Driver Ugreen Bluetooth 53 May 2026

The UGREEN Bluetooth 5.3 adapter (typically model CM591 or 90225) is designed for a driverless "Plug & Play" experience on Windows 8.1, 10, and 11. However, older systems or specific hardware conflicts may require manual installation. 📥 Official Driver & Installation

For most users, Windows will automatically load the necessary drivers upon insertion. If the device is not recognized:

Direct Download: Search for model "90225" on the UGREEN Official Download Page to get the latest package. Method 1 (CD): Use the included mini-CD and run setup.exe.

Method 2 (Manual Update): In Device Manager, right-click the "Realtek Bluetooth 5.3" entry and select Update driver. 🚀 Key Deep Features

The upgrade to Bluetooth 5.3 offers several performance-tier improvements over 5.0/4.0 models:

The UGREEN Bluetooth 5.3 Adapter (commonly model CM591 or CM656) is a compact USB dongle designed to upgrade PCs to the latest Bluetooth standard, offering improved stability, lower latency, and better power efficiency. Driver Installation Guide

Depending on your specific model and Windows version, you may need to install drivers manually or rely on plug-and-play functionality. driver ugreen bluetooth 53

Plug-and-Play (Windows 10/11): Many UGREEN Bluetooth 5.3 adapters, such as the CM656, are designed to be plug-and-play and do not require manual driver installation on modern Windows systems.

Manual Installation (Windows 8.1/10/11): For models like the CM591, which uses the ATS2851 chip, manual installation is often necessary.

Download Drivers: Visit the UGREEN Download Center and search for your product's model number (e.g., "90225" for CM591).

Extract and Run: Extract the downloaded ZIP file and run setup.exe as an administrator.

Complete Setup: Follow the on-screen prompts and restart your computer to finalize the process. Key Features & Performance

Chipset: Often powered by the ATS2851 built-in chip for reliable performance. The UGREEN Bluetooth 5

Range: Supports a transmission distance of up to 20 meters (66 feet) in unobstructed environments.

Multi-Device Support: Capable of connecting multiple wireless peripherals simultaneously, including headphones, mice, keyboards, and game controllers.

Backward Compatibility: Fully compatible with older Bluetooth versions (4.0, 4.2, 5.0) and legacy devices. Troubleshooting Common Issues

If the adapter is not recognized or experiencing connection drops:

Because "UGreen Bluetooth 5.3" is a hardware device rather than a software title, "drivers" for it function differently than a video game or a specific application.

Here is an article-style breakdown of what you need to know about the drivers for UGREEN Bluetooth 5.3 adapters, how to install them, and why they matter. Error 4: After installing driver ugreen bluetooth 53,

Error 4: After installing driver ugreen bluetooth 53, Wi-Fi becomes slow

Cause: Bluetooth 5.3 and 2.4 GHz Wi-Fi interference (common with Realtek chips).

Solution:

• Switch your Wi-Fi router to 5 GHz mode.
• In Device Manager > Bluetooth adapter > Properties > Advanced. Disable "Bluetooth Collaboration" if the option exists.

On macOS (The Pain Point)

macOS is the outlier. Apple's Broadcom-based Bluetooth stack is notoriously hostile to third-party dongles. The UGreen 5.3 adapter will not work on macOS Ventura or later without a hack:

• Third-party kexts like BlueToolFixup (from OpenCore legacy patcher) trick the system into loading the Broadcom driver for the Realtek chip.
• There is no official UGreen driver for macOS. Any claim otherwise is a generic USB Bluetooth driver from the 2010s.

This reveals a deep truth: The driver is not the product; OS approval is.

For Windows 7 / 8 (Legacy Systems)

Note: Microsoft no longer supports Bluetooth 5.3 on Windows 7 natively. However, UGREEN provides a compatibility driver.

1. Install the "Generic Bluetooth Driver for Windows 7" from the UGREEN website.
2. You may need Platform Update for Windows 7 (KB3125574) installed first.
3. Run the installer in Windows 8 Compatibility Mode (Right-click > Properties > Compatibility).
4. If installation fails, your best bet is to upgrade to Windows 10, as Windows 7 lacks native BLE 5.3 stack support.

Step-by-step (Windows)

1. Plug in → Device Manager shows "Unknown device" → loads generic USB driver.
2. Run UGreen setup.exe → It extracts a signed rtl8761b.sys (Realtek vendor driver) to System32\drivers.
3. Registry changes under HKLM\SYSTEM\CurrentControlSet\Services\BTHPORT\Parameters – adds "RadioSupport"=dword:00000001 and LE Audio flags.
4. Reboot required – because the Bluetooth stack must reload with the new lower-level filter driver.

3. Performance & Technical Specs

• Bluetooth Version: 5.3 (Backwards compatible with 5.0, 4.2, 4.0, 3.0).
• Range: Advertised up to 20-30 meters (Open space). Real-world usage with obstacles (walls) is typically 10-15 meters.
• Dual Mode: Supports Dual-Mode Bluetooth, meaning it supports both Classic Bluetooth (audio streaming, file transfer) and BLE (Bluetooth Low Energy for mice/keyboards/sensors).
• Audio Codecs: Supports SBC and AAC. Support for aptX or LDAC depends on the specific sub-model and driver version, but standard models usually stick to native Windows codecs.

Step 1: Check Device Manager

1. Right-click the Start button and select Device Manager.
2. Look for the Bluetooth section.
3. If you see "Bluetooth Radio" or "Realtek Bluetooth Adapter," the driver is installed.
4. Error Indicator: If you see a yellow exclamation mark (!) or a device listed under "Other Devices" named "Bluetooth Dongle" or "Unknown Device," you need a driver update.