1. Introducción
This manual provides detailed instructions for the Keychron K5 Max Ultra-Slim Wireless Custom Mechanical Keyboard. The K5 Max is designed for versatility and performance, offering 3-mode connectivity (2.4 GHz wireless, Bluetooth 5.1, and Type-C wired), QMK/VIA programmability, and a full-size layout with low-profile Gateron Red switches and durable PBT keycaps. It is compatible with macOS, Windows, and Linux operating systems.
2. Contenido del paquete
Verifique que todos los artículos estén presentes en su paquete:
- Keychron K5 Max Keyboard
- Cable USB tipo C a tipo C
- Adaptador USB tipo A a tipo C
- Receptor de 2.4 GHz
- Extractor de teclas
- Switch Puller (if hot-swappable version)
- Manual de usuario

Image: The Keychron K5 Max keyboard showcasing its multi-mode connectivity options.
3. Producto terminadoview
3.1 Características principales
- Conectividad de 3 modos: Seamlessly switch between 2.4 GHz wireless, Bluetooth 5.1, and USB Type-C wired connections.
- Programabilidad QMK/VIA: Customize key assignments, macros, and lighting effects with open-source firmware.
- Diseño ultradelgado: Características de bajo perfilfile Gateron mechanical switches, making the keyboard significantly thinner than standard mechanical keyboards.
- Diseño 100%: Full-size keyboard with 108 keys, including a dedicated number pad.
- Teclas PBT: Durable, non-shine-through PBT keycaps for a tactile typing experience.
- Retroiluminación blanca: Adjustable white LED backlighting for visibility in various lighting conditions.
- Acoustic Foam: Integrated IXPE and latex acoustic foams for quieter keystrokes and improved sound profile.
- Alta tasa de votación: 1000 Hz polling rate in 2.4 GHz wireless and wired modes for responsive input.

Image: The Keychron K5 Max featuring a 108-key full-size layout, including a number pad.

Imagen: Un primer plano view highlighting the ultra-slim profile y bajo profesionalfile Gateron mechanical switches.
4. Configuración
4.1 Interruptor de sistema
Locate the operating system switch on the side of the keyboard. Slide the switch to the appropriate position for your system (Mac/iOS or Win/Android).

Image: The system switch on the side of the keyboard for selecting between Windows/Android and Mac/iOS modes.
4.2 Modos de conectividad
The K5 Max supports three connection modes: 2.4 GHz wireless, Bluetooth, and wired USB Type-C.
4.2.1 Conexión inalámbrica de 2.4 GHz
- Locate the 2.4 GHz receiver in the keyboard's storage slot or packaging.
- Plug the 2.4 GHz receiver into an available USB port on your computer.
- Slide the connectivity mode switch on the keyboard to the "2.4G" position.
- El teclado debería conectarse automáticamente. Si no es así, presione Fn + 4 durante 4 segundos para iniciar el emparejamiento.
4.2.2 Conexión Bluetooth
- Slide the connectivity mode switch on the keyboard to the "BT" position.
- Para ingresar al modo de emparejamiento, mantenga presionado Fn + 1 (for Bluetooth device 1), Fn + 2 (for Bluetooth device 2), or Fn + 3 (for Bluetooth device 3) for 4 seconds until the indicator light flashes rapidly.
- On your device (computer, tablet, or phone), enable Bluetooth and search for "Keychron K5 Max".
- Select the keyboard to pair. The indicator light will stop flashing upon successful connection.
- Para cambiar entre dispositivos Bluetooth emparejados, presione Fn + 1, Fn + 2, o Fn + 3 brevemente.
4.2.3 conexiones cableadas
- Conecte el cable USB Tipo-C al teclado y a su computadora.
- Slide the connectivity mode switch on the keyboard to the "Cable" position.
- The keyboard will function as a wired device and will charge its internal battery.
5. Instrucciones de funcionamiento
Control de retroiluminación 5.1
The K5 Max features a white LED backlight. Use the following key combinations to control it:
- Fn + Light Key (bulb icon): Cycle through backlight effects.
- Fn+F5: Disminuir el brillo de la luz de fondo.
- Fn+F6: Aumentar el brillo de la luz de fondo.

Image: The Keychron K5 Max keyboard with its white LED backlight active.
5.2 Teclas multimedia
The top row of function keys (F1-F12) can be used as multimedia keys. Press Fn + F-key for multimedia functions. On macOS, these keys typically function as multimedia keys by default, and Fn + F-key accesses the standard F-key function.
- Fn+F7: Pista anterior
- Fn+F8: Reproducir/Pausa
- Fn+F9: Pista siguiente
- Fn+F10: Silenciar
- Fn+F11: Bajar volumen
- Fn+F12: Subir volumen
6. Programabilidad QMK/VIA
The Keychron K5 Max supports QMK/VIA, allowing for extensive customization of key functions, macros, and lighting. VIA is a graphical user interface that simplifies the process of remapping keys.
6.1 Using VIA Software
- Descargue el software VIA desde el sitio oficial de Keychron websitio o el repositorio VIA GitHub.
- Connect your K5 Max keyboard to your computer using the USB Type-C cable.
- Launch the VIA application. The software should automatically detect your keyboard.
- Use the intuitive drag-and-drop interface to remap any key, create macros, or adjust lighting settings across different layers.
- Changes are applied in real-time to the keyboard.

Image: The VIA software interface, demonstrating how to program and remap keys on the K5 Max.
7. Mantenimiento
7.1 Limpieza del teclado
- Desconecte el teclado de todas las fuentes de alimentación antes de limpiarlo.
- Utilice un paño suave y sin pelusa ligeramente seco.ampLimpie con agua o una solución de limpieza suave las teclas y la superficie del teclado.
- Para una limpieza más profunda, utilice el extractor de teclas provisto para quitar las teclas y limpiar debajo con aire comprimido o un cepillo pequeño.
- Avoid using harsh chemicals, abrasives, or solvents, as these can damage the keyboard's finish or keycap legends.
7.2 Cuidado de la batería
- The keyboard contains a rechargeable Lithium Polymer battery.
- Charge the keyboard using the provided USB Type-C cable connected to a computer or a standard USB power adapter (5V).
- Avoid exposing the keyboard to extreme temperatures, as this can affect battery life and performance.
- Si va a guardar el teclado durante un período prolongado, cárguelo aproximadamente al 50 % para prolongar la vida útil de la batería.
8. Solución de problemas
8.1 El teclado no responde
- Comprobar conectividad: Ensure the mode switch is set correctly (2.4G, BT, or Cable) and the keyboard is properly connected or paired.
- Nivel de batería: Connect the keyboard via USB-C cable to charge it. A low battery can cause connectivity issues.
- Reanudar: Apague el teclado y vuelva a encenderlo.
- Try Wired Mode: If wireless modes fail, connect the keyboard directly via USB-C cable to rule out wireless interference or battery issues.
8.2 Problemas de conexión Bluetooth
- Reparar: Remove "Keychron K5 Max" from your device's Bluetooth list and re-pair it following the instructions in Section 4.2.2.
- Interferencia: Move closer to your device or away from other wireless devices that might cause interference.
- Límite de dispositivos: Ensure you are not trying to connect to more than 3 Bluetooth devices simultaneously.
8.3 Keys Not Registering or Double Inputs
- Interruptores limpios: Dust or debris under the keycap or switch can cause issues. Use compressed air to clean around the affected switch.
- Actualización de firmware: Check the Keychron website for any available firmware updates for the K5 Max, as these often address known issues.
- Switch Replacement (if hot-swappable): If your K5 Max is the hot-swappable version, a faulty switch can be replaced using a switch puller.
9. Especificaciones
| Modelo | K5 Max (K5MA1) |
| Conectividad | Conexión inalámbrica de 2.4 GHz, Bluetooth 5.1, cable USB tipo C |
| Interruptores | Bajo-Profile Gateron Mechanical (Red Switch variant) |
| Teclas | PBT |
| Disposición | 100% (108 teclas) |
| Iluminar desde el fondo | LED blanco |
| Tasa de sondeo | 1000 Hz (2.4 GHz & Wired) |
| Programabilidad | QMK/VIA |
| Dispositivos compatibles | Consola de juegos, portátil, PC, tableta |
| Compatibilidad del sistema operativo | macOS, Windows, Linux, Android, iOS |
| Batería | 1 polímero de litio (incluido) |
| Dimensiones (L x An x Al) | 17.48 x 6.42 x 1.93 pulgadas |
| Peso del artículo | 2.64 libras |
| Material | Polybutylene Glycol (PBT Keycaps), Aluminum Body |
10. Garantía y soporte
Para obtener información sobre la garantía y soporte técnico, consulte el sitio web oficial de Keychron. website or contact Keychron customer service directly. Details regarding warranty periods and service procedures are typically provided with your purchase documentation or on the manufacturer's support pages.
Recursos en línea:
- Keychron oficial Websitio: www.keychron.com
- QMK/VIA Software & Firmware: Refer to the Keychron support section on their websitio.