Keychron K4 Pro Custom Wireless Mechanical Keyboard User Guide
- June 14, 2024
- Keychron
Table of Contents
Keychron K4 Pro Custom Wireless Mechanical Keyboard
If you are a Windows user, please find the appropriate keycaps in the box, then follow the instructions below to find and replace the following keycaps.
Quick Start Guide
The VIA Key Remapping Software
Please visit caniusevia.com to download the latest VIA software to remap
the keys.
If the VIA software cannot recognize your keyboard, please reach out to our
support to get the instruction. (VIA only works when the keyboard is connected
by wire to the computer.)
The Layers
- There are four layers of key settings on the keyboard. The layer 0 and layer 1 are for the Mac system. The layer 2 and layer 3 are for the Windows system.
- If your system toggle is switched to Mac, then the layer O will be activated.
- If your system toggle is switched to Windows, then the layer 2 will be activated. Remember that if you are using it in Windows mode, please make changes to the layer 2 instead of the top layer (the layer 0). This is a common mistake people are making.
The Backlight
AdjustThe Backlight Brightness
Adjust The Backlight Speed
Warranty
The keyboard is highly customizable and easy to be rebuilt. If anything goes wrong with any of the keyboard components of keyboard during the warranty period, we will only replace the defective parts of the keyboard, not the whole keyboard.
Watch The Building Tutorial On Our Website
If you are building the keyboard for the first time, we highly recommend
you watch the building tutorial video on our website first, then start
building the keyboard yourself.
Factory Reset
Troubleshooting? Don’t know what’s going on with the keyboard?
-
Plug in the power cable and switch the keyboard to Cable mode.
-
Factory reset the keyboard by pressing fn + J + Z (for 4 seconds).
-
Download the right firmware and QMK Toolbox from our website.
-
Switch the keyboard to OFF mode and remove the space bar keycap to find the reset button on the PCB.
-
Hold the reset key first, then switch the keyboard to Cable mode.
Release the reset key, and the keyboard will now enter DFU mode. -
Flash the firmware with the QMK Toolbox.
-
Factory reset the keyboard again by pressing fn + J + Z (for 4 seconds).
- Step by step guide can be found on our website.
Search “RGB keymap” here to download the JSON file if VIA does not
automatically recognize keymap of the K4 Pro:
https://www.keychron.com/blogs/archived/k4-pro-factory-reset-and-firmware-
flash
VIA Software for macOS, Windows, Linux: https://usevia.app/#/
How to Use VIA on Your Keychron K Pro Series Keyboard:
https://www.keychron.com/blogs/archived/how-to-use-via-to-program-your-
keyboard
K4 Pro Source Code, please search “source code” on the product page on our
official website.
References
- VIA
- How to use VIA to program your keyboard – Keychron | Mechanical Keyboards for Mac, Windows and Android