Keychron K3 Max Wireless Mechanical Keyboards User Guide

Keychron K3 Max Wireless Mechanical Keyboards

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

1. Connect 2.4GHz Receiver
   Connect the 2.4GHz receiver to the device USB port.

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.

2. Connect Bluetooth

3. Connect Cable

4. The VIA Key Remapping Software

   • Please visit usevia.app to use the online VIA software to remap the keys.
     If the VIA cannot recognize your keyboard, please reach our support to get the instruction.

   • The online VIA software can only run on the latest version of Chrome, Edge, and Opera browsers yet.

   •  VIA only works when the keyboard is connected by wire to the computer.

5. The Backlight

6. Press In + Q to change the lighting effect

7. Press In+ tab to turn the backlight on/off

6. Adjust The Backlight Brightness
7. Press fn + W to increase the backlight brightness
8. Press In + S to decrease the backlight brightness

7. Adjust The Backlight Speed
8. Press fn + T to increase the light effect speed
9. Press fn + G to decrease the light effect speed

8. 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.

9. 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.

10. Factory Reset

Troubleshooting

Don’t know what’s going on with the keyboard?

1. Download the right firmware and QMK Toolbox from our website.
2. Unplug the power cable and switch the keyboard to Cable mode.
3. Remove the space bar keycap to find the reset button on the PCB.
4. Hold the reset key first, then plug the power cable into the keyboard. Release the reset key after 2 seconds, and the keyboard will now enter DFU mode.
5. Flash the firmware with the QMK Toolbox.
6. Factory reset the keyboard by pressing fn + J + Z {for 4 seconds).

• Step by step guide can be found on our website.

Not Happy
support@keychron.com

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