1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Biorunn DUDU7 9.5 Inch 2K QLED Car Radio Stereo. Please read this manual thoroughly before using the product to ensure proper function and safety. The DUDU7 operates on Android 13 and features a 9.5-inch 2K QLED display, dual-band GPS, wireless Car-Play/Android Auto, DSP, and AMP capabilities.
2. Product Overview
The Biorunn DUDU7 is an advanced car stereo system designed to enhance your in-car entertainment and navigation experience. It features a high-resolution QLED screen and a powerful UIS7870 processor for smooth performance.
Key Features:
- Operating System: DUDU OS 3.0 based on Android 13
- Processor: UIS7870 (8-Core 6nm EUV)
- Display: 9.5 Inch 2K QLED Screen (2000x1200 resolution)
- Memory/Storage: 8GB RAM + 128GB ROM
- Audio: DSP (AKM7739 Velvet Audio Technology), TDA7808 Amplifiers, OpAmp 5532*3
- Connectivity: 4G LTE, 5G WIFI, Bluetooth (Qualcomm 3031), Wireless/Wired Car-Play/Android Auto
- Navigation: Dual Band GPS (L1 L5 B1 B2a E1 E5a) for enhanced accuracy
- Ports: USB 3.2 Gen 1 Type-C port

Image: Overview of DUDU7 technical specifications and core components.

Image: UIS 7870 CPU performance comparison and storage speed benefits.
3. Setup and Installation
Before installation, ensure your vehicle's power is off. Professional installation is recommended. Verify compatibility with your vehicle's center console dimensions and shape.
What's in the Box:
- Frame
- Power Cord
- CANbus
- 2 x USB Cables
- RCA cable
- Reversing Camera input
- Fakra GPS Antenna
- Fakra 4G Antenna

Image: Rear view of the DUDU7 unit with labeled ports and included accessories for connection.
Connection Guide:
- Power Connection: Connect the provided power cord to the unit and your vehicle's power harness.
- CANbus Integration: If your vehicle requires CANbus for steering wheel controls or other functions, connect the CANbus module.
- USB Connections: Utilize the 4-pin and 6-pin USB cables for external devices or data transfer.
- Antenna Connections: Connect the Fakra GPS Antenna for navigation and the Fakra 4G Antenna for mobile data connectivity.
- RCA Cables: Use the RCA cable for audio output to external amplifiers or video input/output.
- Reversing Camera: Connect your reversing camera to the dedicated input for rear view functionality.
- Microphone: Connect the external microphone for improved voice command and call quality.
4. Operating Instructions
The DUDU7 runs on DUDU OS 3.0, an Android 13-based system, offering a customizable and intuitive user experience.
Initial Setup:
- Upon first boot, follow the on-screen prompts to set up language, time zone, and Wi-Fi connection.
- Connect to your vehicle's Wi-Fi hotspot or insert a 4G SIM card (if supported by your model) for internet access.
Navigation:
The unit features Dual Band GPS (L1+L5) for precise positioning. Pre-installed navigation apps can be used, or you can download others from the app store.

Image: Dual Band GPS L1+L5 for enhanced navigation accuracy.
Wireless Car-Play / Android Auto:
Connect your smartphone wirelessly or via USB to access Car-Play or Android Auto features. This allows for seamless integration of phone functions like calls, messages, music, and navigation.

Image: Support for Wireless and Wired Car-Play and Android Auto.
Audio System:
The DUDU7 features advanced audio processing with a built-in DSP (AKM7739 Velvet Audio Technology) and TDA7808 amplifiers for high-quality sound output.

Image: Detailed view of the audio chip and components for enhanced sound quality.
DUDU OS 3.0 Customization:
The operating system allows for extensive customization, including:
- Themes and Wallpapers: Download free themes and set dynamic wallpapers.
- Layouts and Widgets: Choose from various layouts and freely select plug-ins for your home screen.
- Navigation Bar: Customize the display and position of the navigation bar.
- Gesture Control: Configure custom gestures for quick access to functions like home, back, multitasking, and volume control.

Image: DUDU OS 3.0 interface showcasing customization options and dynamic wallpapers.

Image: Full screen custom gestures for convenient operation.
Optional Features:
- 360° Panorama: If equipped with four external cameras, the unit supports a 360° panoramic view to assist with parking and maneuvering.
- Extended Rear Entertainment System: Supports connection to a TYPE-C touch-screen for separate front navigation and rear entertainment. (Note: Accessories not included, requires separate purchase of compatible screen and extension cable).

Image: Optional 360-degree panoramic view for enhanced safety.
5. Specifications
| Feature | Detail |
|---|---|
| Model Name | DUDU7 |
| Operating System | Android 13 (DUDU OS 3.0) |
| Display Size | 9.5 Inches |
| Display Resolution | 2000 x 1200 (2K QLED) |
| Processor | UIS7870 (8-Core 6nm EUV) |
| RAM | 8GB |
| ROM | 128GB |
| GPS | Dual Band (L1 L5 B1 B2a E1 E5a) |
| Connectivity | 4G LTE, 5G WIFI, Bluetooth (Qualcomm 3031) |
| Special Features | Wireless Android Auto, Wireless Car-Play, DSP, Touchscreen |
| Audio Technology | AKM7739 DSP, TDA7808 Amplifiers, OpAmp 5532*3 |
| Mounting Type | Dashboard Mount |
| Voice Command | Buttons, Keyboard, Mouse, Touchscreen |
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Biorunn DUDU7 car stereo.
- Screen Cleaning: Use a soft, lint-free cloth to gently wipe the screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid harsh chemicals.
- Software Updates: Periodically check for system updates through the device settings to ensure you have the latest features and security patches.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Cable Connections: Ensure all cables are securely connected. Loose connections can lead to intermittent issues.
7. Troubleshooting
This section addresses common issues you might encounter with your DUDU7 unit.
Common Issues and Solutions:
- Unit does not power on:
- Check all power connections to ensure they are secure.
- Verify the vehicle's fuse for the stereo is intact.
- No sound output:
- Check speaker wire connections.
- Ensure the volume is not muted or set too low.
- Verify audio settings in the system menu.
- GPS signal lost or inaccurate:
- Ensure the GPS antenna is properly installed and has a clear view of the sky.
- Check GPS settings in the system.
- Car-Play/Android Auto not connecting:
- Ensure your phone's Bluetooth and Wi-Fi are enabled.
- For wired connection, try a different USB cable.
- Restart both the car stereo and your smartphone.
- Touchscreen unresponsive:
- Perform a system restart.
- Ensure the screen is clean and free of debris.
If issues persist after attempting these solutions, please contact customer support.
8. Warranty and Support
For technical assistance or warranty inquiries, please contact the seller directly. The manufacturer, Shenzhen Rongnan International Electronics Co., Ltd., provides support for Biorunn products.
Contacting Support:
If you purchased your product through Amazon, you can typically find seller contact information on your order details page or by visiting the seller's profile. Look for an option to 'Ask a question' to reach RongNan International.

Image: Guide on how to contact technical support via Amazon.
Please have your product model (DUDU7) and purchase details ready when contacting support.