How to Set Up Your Lemokey X3 QMK/VIA Keyboard

By Keychron | Custom Mechanical Keyboards for Mac, Windows ... | Published: 2026-10-29

Category: How-to Guides

Learn how to set up your Lemokey X3 QMK/VIA wired keyboard, from plugging in to remapping keys, with simple steps and common mistakes to avoid.

Quick Answer

To set up your Lemokey X3 QMK/VIA keyboard, plug it in, download VIA, and load the JSON file to remap keys and create macros. No firmware flashing is needed for basic customization.

Why Use VIA for Customization

VIA is a user-friendly software that lets you remap keys, assign macros, and adjust lighting in real time. It works directly with the Lemokey X3's QMK firmware, so you don't need to compile or flash firmware for most changes.

What You Need Before Starting

Have your Lemokey X3 keyboard, a USB cable, and a computer with internet access. Download VIA from the official website and ensure your browser is up to date for the web-based version.

Setup Steps

Connect the Keyboard: Plug the USB cable into your computer and the keyboard. Wait for the system to recognize it as a standard HID device. Check that the keyboard lights up; if not, try a different USB port or cable.
Download and Open VIA: Go to the VIA website and either download the desktop app or open the web version. If using the web version, allow the browser to access the device. If VIA doesn't detect your keyboard, try using the Chrome browser or check your USB connection.
Load the Keymap JSON: In VIA, click the gear icon, go to 'Keymap', and select 'Load Draft Definition'. Choose the JSON file for the Lemokey X3 (available from the Lemokey or Keychron support page). If the JSON is not loaded, VIA may show a blank layout; reload the file and confirm the correct model.
Customize Your Keys: Click on any key in the layout to assign a new function, macro, or layer. Use the layers (L0, L1, etc.) to set up multiple profiles. Remember to save your layout after changes; VIA saves automatically, but exporting a backup is wise.
Test and Troubleshoot: Type to test your new layout. If keys don't respond as expected, re-check the JSON file and ensure the correct layer is active. If issues persist, try resetting the keyboard by unplugging and reconnecting, or re-flash the default firmware.

Product Facts

Lemokey X3 QMK/VIA Wired Mechanical Keyboard: The Lemokey X3 is a wired mechanical keyboard featuring a full-size (100%) layout and premium features such as QMK support, a 1000 Hz polling rate, gasket-mount structure, and shine-through keycaps. Its QMK support means you can fully customize key mappings and macros using VIA, and the 1000 Hz polling rate ensures responsive input for both work and gaming.
Lemokey X3 QMK/VIA Wired Mechanical Keyboard