1. Introdución
Welcome to the MAXHUB E21 Series 86-inch Digital Board user manual. This document provides essential information for the safe and efficient operation of your new interactive display. The MAXHUB E21 Series is designed to enhance collaboration, presentations, and interactive learning environments with its advanced features and intuitive interface. Please read this manual thoroughly before using the product and retain it for future reference.

Figure 1: MAXHUB E21 Series 86-inch Digital Board in a classroom environment.
2. Información de seguridade
To ensure safe operation and prevent damage to the device, please observe the following safety precautions:
- Fonte de alimentación: Use only the specified power adapter and ensure the power outlet is properly grounded.
- Ventilación: Non bloquees as aberturas de ventilación. Asegúrate de que haxa espazo suficiente arredor do dispositivo para un fluxo de aire axeitado.
- Colocación: Install the digital board on a stable surface or mount it securely to a wall using appropriate hardware. Avoid placing it in direct sunlight, near heat sources, or in areas with high humidity or dust.
- Limpeza: Desconecte a alimentación antes de limpar. Use un pano suave e seco. Non empregue produtos de limpeza líquidos nin en aerosol.
- Manexo: Handle the display with care. Avoid strong impacts or pressure on the screen.
- Servizo: Non intente reparar o produto por si mesmo. Encargue toda a reparación a persoal de servizo cualificado.
3. Contido do paquete
Please check the package contents upon unboxing. If any items are missing or damaged, contact your dealer immediately.
- MAXHUB E21 Series 86-inch Digital Board
- Cable de alimentación
- Stylus Pen(s)
- Control remoto
- Wall Mount Bracket (optional, may vary by region/package)
- Manual de usuario (este documento)
4. Configuración
4.1 Instalación física
The MAXHUB Digital Board can be installed on a mobile stand or wall-mounted. Follow the instructions provided with your specific stand or wall mount kit. Ensure the installation is secure and level.
4.2 Conexión de enerxía
- Connect the power cable to the AC IN port on the digital board.
- Conecte o outro extremo do cable de alimentación a unha toma de corrente con conexión a terra.
- Press the power button, usually located on the side or bottom of the display, to turn on the device.
4.3 Configuración inicial e conexión de rede
Upon first power-on, the system will guide you through the initial setup process, including language selection, time zone, and network configuration.
- Wi-Fi: Selecciona a túa rede Wi-Fi da lista e introduce o contrasinal.
- Ethernet: Connect an Ethernet cable to the LAN port for a wired network connection.

Figure 2: Main interface of the MAXHUB E21 Series Digital Board.
5. Instrucións de funcionamento
5.1 Navegación básica
The MAXHUB E21 Series runs on Android 13.0. Navigate the interface using touch gestures or the remote control.
- Toca: Selecciona un elemento ou abre unha aplicación.
- Pasar o dedo: Scroll through menus or pages.
- Pinchar/Espander: Achegar ou afastar o contido.
- Prensa longa: Acceder a menús contextuais ou mover iconas.
5.2 Intelligent Touch Functionality
The digital board supports up to 40 touch points, allowing multiple users to interact simultaneously.
- Use your finger or the provided stylus for precise interaction.
- The system can differentiate between finger touch and stylus input for various functions (e.g., writing vs. erasing).

Figure 3: Stylus interaction on the digital board.
5.3 Using the Whiteboard Application
Access the built-in whiteboard application for interactive writing, drawing, and annotation.
- Select different pen colors, thicknesses, and tools from the toolbar.
- Use multi-touch gestures for zooming and panning the canvas.
- Save your whiteboard sessions for later review ou compartindo.
5.4 Connectivity (Type-C)
The Type-C port offers versatile connectivity for various peripherals.
- Transferencia de datos: Connect external storage devices.
- Saída de visualización: Connect to external monitors (if supported by specific port).
- Entrega de enerxía: Charge compatible devices.
- Audio/Vídeo: Connect compatible audio/video devices.

Figure 4: Type-C connectivity options.
6. Características clave
The MAXHUB E21 Series 86-inch Digital Board is equipped with advanced features for superior performance and user experience:
- Expansive Ultra-HD Display: An 86-inch screen with 3840x2160 (4K) resolution delivers stunning visuals and vibrant colors, ideal for large meeting spaces and classrooms.
- Eyes Care Technology: Features TÜV-certified Low Blue Light and Flicker-Free technology to ensure a comfortable viewing experience during extended use, reducing eye strain.
- Precision Touch Features: Intelligent touchscreen technology supports up to 40 simultaneous touch points, enabling seamless multi-user collaboration and precise interaction.
- Advanced Operating System: Powered by Android 13.0 OS, combined with 8GB RAM and 64GB ROM, for fast, smooth operations, enhanced processing capabilities, and ample almacenamento.
- Sistema de son potente: Integrated dual 20W speakers provide rich, clear, and impactful sound, enhancing multimedia presentations and video conferencing.
- Durable e fiable: Engineered for long-lasting performance with a 50,000-hour backlight life, ensuring consistent brightness and reliability over time.
7. Mantemento
7.1 Limpeza da pantalla
To clean the screen, first power off the device and unplug the power cable. Use a soft, lint-free cloth slightly dampened with water or a screen-specific cleaning solution. Do not spray liquid directly onto the screen.
7.2 Limpeza xeral
Wipe the frame and back panel with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
7.3 Actualizacións de software
Periodically check for system software updates through the device's settings menu to ensure optimal performance and access to the latest features and security patches.
8 Solución de problemas
If you encounter issues with your MAXHUB Digital Board, refer to the following common problems and solutions:
| Problema | Causa posible | Solución |
|---|---|---|
| Sen poder | Power cable not connected; Power outlet faulty; Device off | Ensure power cable is securely connected; Test power outlet; Press power button |
| Sen visualización | Device in standby mode; Input source incorrect | Wake up the device; Check input source settings |
| A pantalla táctil non responde | Screen dirty; Software glitch; Calibration issue | Clean the screen; Restart the device; Recalibrate touch (if option available) |
| Sen son | Volume too low; Muted; External audio device connected | Increase volume; Unmute; Disconnect external audio or select internal speakers |
| Problemas de conexión wifi | Contrasinal incorrecto; Problema co enrutador; Interferencia de sinal | Verify password; Restart router; Move closer to router or reduce interference |
If the problem persists, please contact MAXHUB customer support for assistance.
9. Especificacións
Detailed technical specifications for the MAXHUB E21 Series 86-inch Digital Board:
| Característica | Especificación |
|---|---|
| Marca | MAXHUB |
| Número de modelo | Serie E21 |
| Tamaño da pantalla | 86 polgadas |
| Resolución | 3840 x 2160 (4K UHD) |
| Sistema Operativo | Android 13.0 |
| RAM | 8 GB |
| Almacenamento (ROM) | 64 GB |
| Puntos de contacto | Ata 40 |
| Saída de audio | 2 altofalantes de 20 W |
| Vida de contraluz | 50,000 horas |
| Entrada da interface humana | Pantalla táctil |
| Cor | Gris |
10. Garantía e soporte
Your MAXHUB E21 Series Digital Board comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or visit the official MAXHUB websitio web para obter información detallada sobre os termos e condicións da garantía.
For technical support, service, or inquiries, please contact MAXHUB customer service through their official channels. Have your product model and serial number ready when contacting support.





