1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your BOYI GMK67 65% Mechanical Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
2. Package Contents
Ensure all items listed below are present in your package:
- BOYI GMK67 65% Mechanical Keyboard
- USB-C to USB-A Cable
- 2-in-1 Keycap and Switch Puller
- Spare Mechanical Switches (4 pieces)
- 2.4G Wireless Receiver (USB Dongle)
- User Manual (this document)
3. Product Features
The BOYI GMK67 keyboard is designed with advanced features for a superior typing and gaming experience:
- 65% Compact Layout: Optimized for space-saving without sacrificing essential keys.
- Full CNC Aluminum Alloy Case: Provides durability and a premium feel.
- Gasket Mount Design: Enhances typing comfort and sound profile.
- Tri-Mode Connectivity: Supports Wired (USB-C), 2.4G Wireless, and Bluetooth 5.0 connections.
- Hot-Swappable PCB: Compatible with 3-pin and 5-pin mechanical switches, allowing for easy customization without soldering.
- South-Facing RGB Backlight: Offers vibrant and customizable lighting effects.
- 4000mAh Rechargeable Battery: Ensures extended wireless usage.
- Pre-lubed Stabilizers: Reduces rattle and improves key feel for larger keys.
- PBT Double-Shot Keycaps: Durable keycaps with legends that resist fading.
- Multi-function Knob: Controls volume and RGB backlight settings.

Image: Overview of BOYI GMK67 features including its full CNC aluminum case and gasket structure.

Image: The 65% layout of the BOYI GMK67 mechanical keyboard with custom RGB lighting.
Video: Overview of the BOYI GMK67 keyboard's design and features.
4. Setup & Connectivity
The BOYI GMK67 keyboard offers three connection modes:
4.1 Wired Connection (USB-C)
- Locate the USB-C port on the left side of the keyboard.
- Connect the provided USB-C cable to the keyboard and the other end to your computer's USB port.
- Ensure the mode switch on the side of the keyboard is set to "Wired" (usually indicated by a cable icon or specific position).
- The keyboard will be automatically recognized by your system.
4.2 2.4G Wireless Connection
- Locate the 2.4G wireless receiver (USB dongle) in the package.
- Plug the 2.4G receiver into an available USB port on your computer.
- Set the mode switch on the side of the keyboard to "2.4G" (usually indicated by a wireless icon or specific position).
- The keyboard should automatically connect. If not, press FN + R simultaneously to initiate pairing.
4.3 Bluetooth 5.0 Connection
- Set the mode switch on the side of the keyboard to "Bluetooth" (usually indicated by a Bluetooth icon or specific position).
- On your device (computer, tablet, smartphone), enable Bluetooth and search for new devices.
- To enter pairing mode, press and hold FN + Q, FN + W, or FN + E for 3-5 seconds. The corresponding key's backlight will flash rapidly, indicating it's ready to pair.
- Select "BOYI GMK67" from the list of available Bluetooth devices on your host device.
- Once connected, the backlight of the chosen key (Q, W, or E) will stop flashing and remain steadily lit.
- You can pair up to three Bluetooth devices and switch between them by pressing FN + Q, FN + W, or FN + E briefly.

Image: Tri-Mode Connection methods for the BOYI GMK67 keyboard.
5. Key Functions & RGB Control
The BOYI GMK67 features a multi-function knob and various FN key combinations for controlling keyboard settings and RGB lighting.
5.1 Multi-function Knob
- Rotate: Adjusts system volume (default mode) or backlight brightness (when in RGB mode).
- Press: Mutes/unmutes audio (default mode) or cycles through RGB lighting effects (when in RGB mode).
5.2 RGB Backlight Control (FN Combinations)
The keyboard features south-facing RGB LEDs for vibrant illumination. Use the following key combinations:
- FN + Backspace: Toggles RGB backlight on/off.
- FN + \|: Cycles through different RGB lighting effects (14+ effects available).
- FN + ]: Changes the RGB backlight color for static modes.
- FN + Arrow Keys: Adjusts brightness and speed of RGB effects.
![BOYI GMK67 keyboard with RGB lighting, showing dimensions and FN key combinations for RGB control: FN+Backspace for on/off, FN+\| for effect switch, FN+] for color switch.](https://m.media-amazon.com/images/S/aplus-media-library-service-media/47a4c798-4929-4f90-9993-32c4dea93562.__CR0,0,970,600_PT0_SX970_V1___.jpg)
Image: Programmable south-facing RGB backlight and control functions.
Video: Demonstration of the BOYI GMK67 keyboard's RGB lighting effects and typing sound.
6. Hot-Swapping Switches & Keycaps
The hot-swappable PCB allows you to easily change mechanical switches and keycaps without soldering.
6.1 Changing Keycaps
- Use the keycap puller to gently grip the keycap you wish to remove.
- Pull straight up with even pressure until the keycap detaches from the switch stem.
- To install a new keycap, align it with the switch stem and press down firmly until it clicks into place.
6.2 Changing Switches
The GMK67 supports both 3-pin and 5-pin mechanical switches.
- First, remove the keycap using the keycap puller as described above.
- Use the switch puller to grip the top and bottom clips of the switch.
- Gently rock the switch while pulling upwards until it detaches from the PCB.
- To install a new switch, ensure its pins are straight. Align the pins with the holes on the PCB.
- Press down firmly until the switch clicks into place. Ensure it is seated correctly and not bent.
- Replace the keycap.

Image: Detailed view of a hot-swappable mechanical switch and its force-travel characteristics.

Image: Hot-swappable mechanical switches and the provided 2-in-1 key puller.
7. Maintenance
- Cleaning: Use a soft, dry cloth to wipe the keyboard surface. For deeper cleaning, remove keycaps and use compressed air to clear debris. Avoid harsh chemicals.
- Battery Care: To prolong battery life, avoid fully discharging the keyboard frequently. Charge it regularly, especially if not used for extended periods.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided dust cover if available.
8. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding in Wired mode. | Incorrect mode switch setting, faulty cable, or driver issue. |
|
| 2.4G Wireless connection not working. | Receiver not plugged in, incorrect mode, or pairing issue. |
|
| Bluetooth connection fails or disconnects. | Incorrect pairing, out of range, or interference. |
|
| RGB backlight not working or stuck. | RGB is turned off, or a software glitch. |
|
| Keys not registering or double-typing. | Loose switch, faulty switch, or debris under keycap. |
|
9. Specifications
| Feature | Detail |
|---|---|
| Brand | BOYI |
| Model | GMK67 |
| Layout | 65% (67 keys) |
| Connectivity | USB-C Wired, 2.4G Wireless, Bluetooth 5.0 |
| Switch Type | Linear (Hot-swappable 3/5-pin) |
| Keycap Material | PBT Double-Shot |
| Backlight | South-Facing RGB |
| Battery Capacity | 4000mAh |
| Case Material | CNC Aluminum Alloy |
| Weight | 1.75 Kilograms |
10. Warranty & Support
For warranty information, technical support, or any product-related inquiries, please contact BOYI customer service through the platform where you purchased the product or visit the official BOYI website.
You can also reach out via email: boyiservice2020@163.com

Image: BOYI Customer Service and Support Contact Information.







