Keychron K8 Max Quick Start Guide

Getting Started

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.

1. Connect 2.4GHz Receiver

Connect the 2.4GHz receiver to the device USB port.

Switch toggle to 2.4GHz mode: G/Cable / BT switch set to G.

Note: For the best wireless experience, Keychron recommends using the extension adapter for the receiver and placing the 2.4GHz receiver on your desk close to your keyboard for low latency and fewer signal interferences.

2. Connect Bluetooth

Switch toggle to Bluetooth mode: G/Cable/BT switch set to BT.

Press fn + 1 (for 4 seconds) and pair with the device named "Keychron K8 Max".

3. Connect Cable

Switch toggle to Cable mode: G/Cable/BT switch set to Cable.

4. Switch To The Right System

Please ensure the system toggle on the top left corner has been switched to the same system as your computer's operating system (Win or Mac).

5. The Backlight

Press fn + Q to cycle through backlight effects.

Press fn + tab to turn the backlight on/off.

6. Adjust The Backlight Brightness

Press fn + W to increase the backlight brightness.

Press fn + S to decrease the backlight brightness.

7. Warranty

The Keychron K8 Max keyboard is highly customizable and easy to rebuild. If any keyboard components fail during the warranty period, Keychron will replace only the defective parts, not the entire keyboard.

8. The Keychron Launcher App

Please visit launcher.keychron.com to use the online Launcher web app to remap keys, create macro commands, or flash firmware. If the Launcher cannot recognize your keyboard, please contact Keychron support for instructions.

• The online Launcher can only run on the latest versions of Chrome, Edge, and Opera browsers.
• The Launcher only works when the keyboard is connected by wire to the computer.

9. The Layers

There are four layers of key settings on the keyboard. Layers 0 and 1 are for the Mac system, while layers 2 and 3 are for the Windows system.

If your system toggle is switched to Mac, Layer 0 will be activated. If your system toggle is switched to Windows, Layer 2 will be activated. When using in Windows mode, make changes to Layer 2, not the top layer (Layer 0), as this is a common mistake.

10. Factory Reset & Firmware Update

Factory Reset:

1. Power on your keyboard.
2. Press and hold fn + J + Z (for 4 seconds). The keyboard backlight will flash red quickly for 3 seconds, indicating the keyboard has been reset.

Flash Keyboard Firmware:

1. Visit launcher.keychron.com to open the online Launcher web app.
2. Ensure the keyboard is in Cable or Wired mode and plug in the power cable.
3. Find the 'Firmware Update' tab on the left side of the Launcher and connect your keyboard.
4. Follow the instructions on the Launcher to complete the firmware update.

For a step-by-step guide, search for "firmware" on keychron.com.

Additional Resources

How to Remap Your QMK Enabled K Max Series Keyboard on macOS, Windows, Linux: https://www.keychron.com/blogs/news/how-to-use-launcher-to-program-your-keyboard

Source Code: Download links will be available on the product page of the official Keychron website if the code is on Github. You can search "source code" to find it.

More files for further customization: https://www.keychron.com/pages/keychron-k8-max-user-guide

Troubleshooting

If you encounter issues with your keyboard, consider performing a factory reset or updating the firmware. For further assistance, contact Keychron support at support@keychron.com.