Introducción
This manual provides comprehensive instructions for the Keychron K4 QMK Wireless Custom Mechanical Keyboard (Version 3). It covers setup, operational procedures, maintenance guidelines, and product specifications to ensure optimal use and longevity of your device. The Keychron K4 is a 96% layout (100-key) mechanical keyboard featuring QMK firmware for extensive customization, dual wireless (Bluetooth 5.1 and 2.4G) and wired (USB-C) connectivity, and a white backlight.
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Image: The Keychron K4 keyboard positioned on a wooden desk, showcasing its compact 96% layout.
Contenido del paquete
Verifique que todos los artículos estén presentes en el paquete:
- Keychron K4 QMK Wireless Custom Mechanical Keyboard
- Cable USB-C a USB-A
- Extractor de teclas
- Switch Puller (if hot-swappable version)
- Manual de usuario
Configuración
1. Cambio de sistema operativo
Locate the OS switch on the side or back of the keyboard. Toggle it to the appropriate position for your operating system (Windows/Android or macOS).
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Imagen: Un detalle view of the physical switch on the keyboard used to select between Windows/Android and macOS operating system modes.
2. Modos de conectividad
The Keychron K4 supports three connectivity options: Bluetooth, 2.4G Wireless, and USB-C wired.
- Modo Bluetooth: Slide the mode switch to 'BT'. To pair, press and hold 'Fn + 1' (or 'Fn + 2' / 'Fn + 3') for 4 seconds until the indicator light flashes rapidly. Select 'Keychron K4' from your device's Bluetooth settings. The keyboard can connect to up to three devices simultaneously.
- Modo inalámbrico 2.4G: Slide the mode switch to '2.4G'. Insert the 2.4G receiver into your device's USB port. The keyboard should connect automatically.
- Modo cableado USB-C: Slide the mode switch to 'Cable'. Connect the provided USB-C cable from the keyboard to your computer.
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Image: The Keychron K4 keyboard demonstrating its ability to connect to multiple devices, including a laptop, desktop monitor, and tablet, via wireless technology.
3. Carga de la batería
The keyboard is equipped with a 4000mAh lithium-ion battery. Connect the USB-C cable to the keyboard and a power source (computer USB port or wall adapter) to charge. The charging indicator light will show the charging status.
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Image: The Keychron K4 keyboard on a wooden surface, highlighting its 4000mAh battery capacity.
Instrucciones de funcionamiento
1. Key Customization with QMK and Keychron Launcher
The Keychron K4 features QMK firmware, allowing for extensive key remapping, macro creation, and custom shortcuts. Utilize the Keychron Launcher web application to easily customize each key. Visit the official Keychron website for access to the Launcher and detailed instructions.
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Image: A visual representation of the Keychron Launcher software, displaying its interface for customizing keyboard keymaps and functions.
2. Control de luz de fondo
The keyboard features a white backlight. Use the dedicated backlight key (often 'Fn + Light bulb icon' or similar) to cycle through various lighting effects and brightness levels. Refer to the keyboard's keycap legends for specific backlight control shortcuts.
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Imagen: Un primer plano view of the Keychron K4 keyboard's keys illuminated by its white backlight.
3. Soporte ergonómico
The Keychron K4 is designed with two-level adjustable feet and an inclined bottom frame to provide ergonomic support and comfort during extended typing sessions. Adjust the feet to your preferred typing angle.
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Imagen: Un lado profesionalfile of the Keychron K4 keyboard, illustrating the two adjustable feet positions for ergonomic typing angles.
Mantenimiento
1. Limpieza
Para limpiar el teclado, primero desconéctelo de todas las fuentes de alimentación. Utilice un paño suave y sin pelusa ligeramente seco.ampened with water or a mild cleaning solution. For deeper cleaning, use the provided keycap puller to remove keycaps and clean underneath with compressed air or a small brush. Avoid excessive moisture.
2. Cuidado de la batería
To prolong battery life, avoid fully discharging the keyboard frequently. Store the keyboard in a cool, dry place when not in use for extended periods. If the keyboard will not be used for a long time, charge it to approximately 50% before storage.
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Image: An exploded diagram illustrating the internal components of the Keychron K4 keyboard, including keycaps, switches, plate, foam, PCB, and battery.
Solución de problemas
- El teclado no se conecta mediante Bluetooth: Ensure the OS switch is set correctly. Turn off and on the keyboard. Delete the keyboard from your device's Bluetooth list and re-pair. Ensure the keyboard is charged.
- Las teclas no responden: Check if the keyboard is in the correct mode (wired/wireless). If in wired mode, ensure the USB-C cable is securely connected. If wireless, check battery level.
- La luz de fondo no funciona: Ensure the backlight is enabled and brightness is adjusted. Check battery level.
- Retraso o retardo de entrada: Ensure the keyboard is within range of your device for wireless connections. For wired connections, try a different USB port or cable.
Presupuesto
| Nombre del modelo | K4X-A3 |
| Disposición | 96% (100 teclas) |
| Conectividad | Bluetooth 5.1, conexión inalámbrica 2.4G, cable USB-C |
| Interruptores | Interruptor marrón (táctil) |
| Iluminar desde el fondo | LED blanco |
| Capacidad de la batería | Iones de litio 4000mAh |
| Tasa de sondeo | 1000 Hz |
| Dispositivos compatibles | Laptop, Phone, Tablet (Mac/Windows/Android) |
| Peso del artículo | 3.16 libras |
| Dimensiones del paquete | 15.83 x 7.99 x 2.91 pulgadas |
Garantía y soporte
Keychron products typically come with a limited manufacturer's warranty. For specific warranty terms, technical support, or service inquiries, please refer to the official Keychron webSitio web o contacte directamente con el servicio de atención al cliente. Conserve su comprobante de compra para reclamaciones de garantía.
Keychron oficial Websitio: www.keychron.com





