K3 Version 3 Wireless Mechanical Keyboard
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Product Specifications
- Product Name: Keychron K3 Version 3
- Compatibility: Windows, macOS, Linux
- Connectivity: Bluetooth, Cable
- Layers: 4 (0 and 1 for Mac, 2 and 3 for Windows)
- Backlight: Adjustable lighting effects
- Additional Software: Keychron Launcher App
Product Usage Instructions
1. Connecting to Bluetooth
Quick Start Guide:
- Press fn + 1 (hold for 4 seconds) to enter Bluetooth pairing
mode. - Pair with a device named “Keychron K3 Version 3”.
2. Connecting via Cable
For a wired connection:
- Use the provided cable to connect the keyboard to your
device.
3. System Compatibility
Ensure the system toggle on the top left corner matches your
computer’s operating system (Win/Mac).
4. Adjusting Backlight
To change lighting effects, press fn + Q. Press fn + tab to
toggle the backlight on/off.
5. Key Settings and Layers
The keyboard has 4 layers of key settings:
- Layer 0 & Layer 1: Mac system
- Layer 2 & Layer 3: Windows system
6. Keychron Launcher App
Visit launcher.keychron.com to remap keys, create macros, or
update firmware using the online app.
7. Factory Reset & Firmware Update
To factory reset: Press and hold fn + J + Z for 4 seconds.
To update firmware: Visit launcher.keychron.com, connect in
cable mode, and follow on-screen instructions.
Frequently Asked Questions (FAQ)
Q: What should I do if the Keychron Launcher does not recognize
my keyboard?
A: Contact support@keychron.com for assistance on recognizing
your keyboard in the Launcher app.
Q: What browsers are supported for using the online
Launcher?
A: The online Launcher is compatible with the latest versions of
Chrome, Edge, and Opera browsers.
Q: How can I customize the keyboard during the warranty
period?
A: If any keyboard components are defective during the warranty
period, only the faulty parts will be replaced, not the entire
keyboard.
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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 Bluetooth
Quick Start Guide
2 Connect Cable
Bluetooth / OFF /
Press fn + 1 (for 4 seconds) and pair with device named Keychron K3 Version 3
fn + 1
Bluetooth / OFF /
How to Remap Your QMK Enabled K QMK 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-k3-version-3-user-guide
3 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
5 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.
4 The Backlight
Press fn + Q to change the lighting effect
Press fn + tab to turn the backlight on/off
6 The Keychron Launcher App
fn + Q
fn + tab
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.
7 Factory Reset & Firmware Update
fn + J + Z
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.
Not Happy support@keychron.com
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.
Documents / Resources
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Keychron K3 Version 3 Wireless Mechanical Keyboard [pdf] User Guide 84, K3 Version 3 Wireless Mechanical Keyboard, K3 Version 3, Wireless Mechanical Keyboard, Mechanical Keyboard, Keyboard |