Keychron K8 Max TKL Mechanical Keyboard User Guide

K8 Max TKL Mechanical Keyboard

Product Information

Specifications:

  • Connection: 2.4GHz Wireless, Bluetooth
  • Compatibility: Windows, macOS, Linux
  • Backlight: Adjustable brightness with effects
  • Customization: QMK enabled for remapping keys

Product Usage Instructions

1. Connect 2.4GHz Receiver

Connect the 2.4GHz receiver to the device USB port.

2. Connect Bluetooth

  1. Switch toggle to 2.4GHz mode (G).
  2. Press fn + 1 (for 4 seconds) to pair with the device named
    Keychron K8 Max.

3. Connect Cable

Switch toggle to Cable mode, then connect the Type-C cable to
your device.

4. Switch To The Right System

Ensure the system toggle on the top left corner matches your
computer’s operating system (Win/Mac).

5. Adjust The Backlight

  • To change lighting effects, press fn + Q.
  • To turn the backlight on/off, press fn + tab.
  • To increase brightness, press fn + W; to decrease brightness,
    press fn + S.

6. Factory Reset & Firmware Update

If troubleshooting is needed or for firmware updates:

  1. To factory reset: Power on keyboard, then press and hold fn + J
    + Z for 4 seconds.
  2. To flash keyboard firmware: Visit launcher.keychron.com, ensure
    wired connection, and follow instructions.

7. Keychron Launcher App

Visit launcher.keychron.com to remap keys, create macros, or
update firmware.

8. The Layers

The keyboard has four layers of key settings, with layers 0 and
1 for Mac and layers 2 and 3 for Windows.

9. Warranty

If any keyboard components are defective during the warranty
period, we will replace the parts accordingly.

FAQ:

Q: How can I customize key settings on the Keychron K8
Max?

A: You can use the Keychron Launcher App available at
launcher.keychron.com to remap keys and create macro commands.

Q: What should I do if my keyboard is not recognized by the
Launcher?

A: If the Launcher cannot recognize your keyboard, please
contact our support team for further instructions.

Q: How do I ensure the best wireless experience with the
keyboard?

A: For optimal wireless performance, use the extension adapter
for the 2.4GHz receiver and place it close to your keyboard on your
desk to minimize latency and signal interferences.

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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.

Quick Start Guide

2 Connect Bluetooth

Switch toggle to 2.4GHz mode

G / Cable / BT
G = 2.4GHz

Type-C Cable
2.4GHz Receiver

Extension Adapter For Receiver

Note: For the best wireless experience, we recommend using the extension adapter for receiver and putting the 2.4GHz receiver somewhere on your desk close to your keyboard for a low rate of latency and fewer signal interferences.

Switch toggle to Bluetooth
G / Cable / BT
Press fn + 1 (for 4 seconds) and pair with device named Keychron K8 Max.
fn + 1

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 link will be available on the product page of our official website if the code is up on Github, you can then search “source code” to find it.
More files for further customization: https://www.keychron.com/pages/keychron-k8-max-user-guide

3 Connect Cable
5 The Backlight
Press fn + Q to change the lighting effect

Switch toggle to Cable
G / Cable / BT
Press fn + tab to turn the backlight on/off

4 Switch To The Right System
Please make sure the system toggle on the top left corner has been switched to the same system as your computer’s operating system.

Win Mac

6 Adjust The Backlight Brightness
Press fn + W to increase the backlight brightness

Press fn + S to decrease the backlight brightness

7 Warranty

fn + Q

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.

fn + tab

fn + W
8 The Keychron Launcher App
Please visit launcher.keychron.com to use the online Launcher web app to remap the keys, create macro commands, or flash the firmware. If the Launcher cannot recognize your keyboard, please reach our support to get the instructions.
* The online Launcher can only run on the latest version of Chrome, Edge, and Opera browsers. * The Launcher only works when the keyboard is connected by wire to the computer.

fn + S

9 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 0 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.

10 Factory Reset & Firmware Update

Not Happy support@keychron.com

Troubleshooting? Don’t know what’s going on with the keyboard? Factory reset your keyboard 1. Power on your keyboard. 2. Press and hold fn + J + Z (for 4 seconds). The keyboard backlight will flash
in red quickly for 3 seconds, indicating that the keyboard has been reset. Flash your 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 with it. 4. Follow the instructions on the Launcher and complete the firmware update. *Step-by-step guide, search the keyword “firmware” on keychron.com.

Documents / Resources

Keychron K8 Max TKL Mechanical Keyboard [pdf] User Guide
B0DHKJXLNN, B0D6245GLV, B0D623SMVT, B0D622HS7S, K8 Max TKL Mechanical Keyboard, K8 Max TKL, Mechanical Keyboard, Keyboard

References

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