Keychron Q4 Pro Wireless Custom Mechanical Keyboard User Manual

Keychron Q4 Pro Wireless Custom Mechanical Keyboard

Product Information

The Keychron Q4 Pro is a programmable mechanical keyboard designed for enhanced typing and gaming experiences. It features customizable keymaps and is compatible with the VIA software for easy programming on macOS, Windows, and Linux operating systems. The keyboard also supports QMK firmware and offers a factory reset option for troubleshooting purposes.

Product Usage Instructions

1. If the VIA software does not automatically recognize the keymap of your Q4 Pro keyboard, you can download the JSON file from the following link: Keychron Q4 Pro Keymap JSON File.
2. To program your Q4 Pro keyboard using the VIA software, you need to download and install VIA on your macOS, Windows, or Linu  computer. Visit the official VIA website at https://usevia.app/#/ to access the software.
3. For detailed instructions on how to use VIA to program your Keychron Q Pro Series keyboard, refer to the following guide: How to Use VIA on Your Keychron Q Pro Series Keyboard.
4. If you require access to the Q4 Pro source code, please visit the product page on the official Keychron website and search for the source code there.

Download the JSON file in the link below if VIA does not automatically recognize keymap of the Q4 Pro

• https://www.keychron.com/blogs/archived/how-to-factory-reset-or-flash-your-qmk-via-enabled-keychron-q4-pro-keyboard
• VIA Software for macOS, Windows, Linux : https://usevia.app/#/

How to Use VIA on Your Keychron Q Pro Series Keyboard

• https://www.keychron.com/blogs/archived/how-to-use-via-to-program-your-keyboard
• Q4 Pro Source Code, please search “source code” on the product page on our official website.

Fully Assembled Version

Keyboard

• 1x Fully Assembled Keyboard

Including

• 1x Aluminum Case
• 1x PCB
• 1x PC Plate
• 1x Sound Absorbing Foam
• 1x Case Foam
• 14x Gaskets (10 Installed and 4 in the Box) S Sets x Stabilizers
• 1 Set x Keycaps (PBT Double-shot)
• 1 Set x Switches

Cable

• 1x Type-C to Type-C Cable
• 1x Type-A to Type-C Adapter

Tools

• 1x Switch Puller
• 1x Keycap Puller
• 1x Screwdriver
• 1x Hex Key

Barebone Version

Keyboard Kit

• 1x Keyboard Kit (Without Keycaps & Switches) Including
• 1x Aluminum Case
• 1x PCB
• 1x PC Plate
• 1x Sound Absorbing Foam
• 1x Case Foam
• 14x Gaskets (10 Installed and 4 in the Box)
• 5 Sets x Stabilizers

Cable

• 1x Type-C to Type-C Cable
• 1x Type-A to Type-C Adapter

Tools

• 1x Switch Puller
• 1x Keycap Puller
• 1x Screwdriver
• 1x Hex Key

Quick Start Guide
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
2. Connect Cable
3. 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 five layers of key settings on the keyboard. The layer O is for the Mac system.
• The layer 1 is for the Windows system.
• The layer 2 is for the Mac Multimedia keys.
• The The layer layer 4 3 is is for for the the Function Windows keys. Multimedia keys.
  • 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 1 will be activated.

Multimedia Key and Function Key

• In order to get Multimedia Key, you need to press fn and Key,
• In order to get Function Key, you need to press fn1 and Key,

The Backlight

Adjust The Backlight Brightness

• Press fn + S to increase the backlight brightness
• Press fn + X to decrease the backlight brightness

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?

1. Plug in the power cable and switch the keyboard to Cable mode.
2. Factory reset the keyboard by pressing fn1 + J + Z (for 4 seconds).
3. Download the right firmware and QMK Toolbox from our website.
4. Switch the keyboard to OFF mode and remove the space bar keycap to find the reset button on the PCB.
5. Hold the reset key first, then switch the keyboard to Cable mode.
   • Release the reset key, and the keyboard will now enter DFU mode.
6. Flash the firmware with the QMK Toolbox.
7. Factory reset the keyboard again by pressing fn1 + J + Z (for 4 seconds).
   • Step by step guide can be found on our website.

Q4 PRO BLUETOOTH MECHANICAL KEYBOARD SPECIFICATIONS

• Number of keys : 61
• Switch type : Mechanical
• Battery : 4000mAh
• Bluetooth working time (RGB ): Up to 100 hours (Lowest brightness)
• Charging time : Around 5 hours
• Charging port : USB Type-C
• Mode : Bluetooth / Wired
• Bluetooth operating distance: Within 10 meters (open space)
• Name of Bluetooth device : Keychron Q4 Pro
• Operating environment: -10 to 50°C

Technical specifications can be subjected to change without notice, we apologize for any inconvenience caused

Q4 PRO BLUETOOTH MECHANICAL KEYBOARD OVERVIEW

1. Bluetooth indicator
2. BT OFF Cable (Mode Toggle Switch)
3. Win/Android Mac/iOS  (OS Toggle Switch)
4. Charging port

DEFAULT KEY LAYOUT

• LAYER 0: This layer will be activated when your keyboard’s system toggle is switched to Mac.
• LAYER 1 : This layer will be activated when your keyboard’s system toggle is switched to Windows.
• LAYER 2 : This layer will be activated when your keyboard’s system toggle is switched to Mac and press the fn/M0(2) key.
• LAYER 3 : This layer will be activated when your keyboard’s system toggle is switched to Windows and press the fn/M0(3) key.
• LAYER 4 : This layer will be activated when you press the fn1/M0(4) key.

KEY DESCRIPTION

LED STATUS OVERVIEW

Fully charged – Static Green

Bluetooth indicator| Bluetooth| Pairing – Slow Blinking Paired – Light Off Switching – Fast Blinking

FUNCTION DESCRIPTION

CHARGING
Plug the cable into a USB port and plug the other end into the keyboard port. Charging Indicator: A red light will stay on while charging; Fully charged in around 5 hours, a green battery indicator will appear.

• The Keychron keyboard is compatible with all USB ports. Please use a SV 1A adapter or USB 3.0 for the best performance. The Keychron Q4 Pro can be charged in Bluetooth/on/off mode.
• This product supports up to SV charging voltage and 1A charging current. We are not responsible for any problems caused by improper charging.

BLUETOOTH / WIRED MODE (MODE TOGGLE SWITCH)

WIRED MODE

1. Switch the toggle switch to the Cable option (it only works when a USB cable is plugged in).
2. Connect our cable with your PC and keyboard. 3. Backlighting will be turned on. *Under Wired Mode, keyboard will not enter into Battery Saver Mode.

BLUETOOTH MODE

1. Switch the toggle switch to the Bluetooth option.
2. Backlighting will be turned on.
3. Hold “in+Q” key for 4 seconds to activate Bluetooth pairing (the Bluetooth indicator fast flashes for 3 minutes to detect pairing).
4. Search for the Bluetooth device “Keychron Q4 Pro” on your device and connect it (the Bluetooth indicator goes off after successful pairing).

Note: This keyboard supports pairing up to 3 devices simultaneously via key combination “in” + “Q” / “fn” + “W” / “fn” + “E”. *The Bluetooth indicator will continue to flash for 3 minutes. **Slow or failed connections may exist due to different Bluetooth versions, please make sure all the settings are correct.

SWITCH BLUETOOTH DEVICES
Short press key combination “fn” + “O” / “fn” + “W” / “fn” + “E” to switch to other device.

RECONNECT

1. Switch the keyboard to the Bluetooth option to activate the keyboard.
2. The Bluetooth indicator flashes for 4 seconds and automatically pairs with the last paired device.
3. If the Bluetooth indicator is off, press any button to enter the connection again.

• • The keyboard must have been paired with the device to perform this function.

TURN OFF THE KEYBOARD
Switch the keyboard to the OFF option.

BACKLIGHT SETTING

• Short press key combination “fn” + “caps lock” to turn the backlight on/off.
• Short press key combination “fn” + ”A:’ I “fn” + “Z” to switch between different types of lighting effects.

OS TOGGLE SWITCH

1. MAC/iOS
   • Switch the toggle to Mac/iOS when the keyboard is connected to a Mac or iOS operating system.
2. WINDOWS/ANDROID
   • Switch the toggle to Windows/Android when the keyboard is connected to a Windows or Android operating system.
   • *When using the Windows/Android mode, keys are used for “Windows and “Alt” functions.

INPUT METHOD SWITCH

For iOS

• Input method switch: Ctrl + Space
• Caps Lock : Caps (Enable General ›Keyboards> Hardware Keyboard “Caps Lock Language Switch)

For Android

• Input method switch: Shift + Space

NOTE: Functions of certain multimedia key may be disabled due to compatibility, versions, brands and drivers of Windows/Android OS. We also recommend not to switch OS frequently as it may impact keyboard operations.

TROUBLESHOOTING

If unable to pair keyboard to device, confirm that the device you’re trying to pair with is Bluetooth-capable. If so, restart the device and try pairing it with the keyboard again.

Note: On a Windows computer, a new Bluetooth connection will sometimes require additional software updates-a process that may still be ongoing after a message appears indicating a successful completion. Wait at least 20 minutes after pairing to make sure all updates are completed before restarting the computer.
Confirm that the device is configured to accept Bluetooth connections (Windows) and supports an external keyboard (HID profile).

Go to Bluetooth Devices > Open Settings and select the following

• Allow Bluetooth devices to find this computer
• Allow Bluetooth devices to connect to this computer
• Alert me when a Bluetooth device wants to connect

My keyboard isn’t working.

• For the computer/smartphone
• Go to your device Bluetooth settings> Select the keyboard and remove/delete/unpair it.
• Then restart your device.

For the keyboard
Turn the keyboard off and back on. Then reconnect it to your device.

Bluetooth connection is interrupted even within 10 meters.
Check if the keyboard is resting on a metal surface that can interfere with the Bluetooth signal.

Third-party input tools are not compatible with the keyboard.
Due to compatibility, versions, brands and drivers of Windows/Android OS, functions of third-party input tools may be affected while using the keyboard. Please make sure your operating system and drivers are up to date.

Certain multimedia keys or function keys do not work.
Functions of certain multimedia keys may be disabled due to compatibility, versions, brands, and drivers of devices.

• Multimedia key s:
• Function keys :

Safety Precaution

• Keep the product, accessories and packaging parts out of the reach of children to prevent any accidents and choking hazards.
• Always keep the product dry to avoid corrosion.
• Do not expose the product to extreme temperatures below -10°C(S° F) or above 50°C(131 ° F) to preserve the lifespan of the keyboard.

Keychron, Inc.
Dover, DE 19901, United States

• Find us at : https://www.keychron.com
• Support@keychron.com
• @keychron
• @keychron
• @keychronMK
• Designed by Keychron
• Made in China

References

• VIA
• How to use VIA to program your keyboard – Keychron | Mechanical Keyboards for Mac, Windows and Android

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>