1. Introduction
The Glacier Skyloong GK104 Pro is a versatile full-size mechanical keyboard designed for both productivity and gaming. It features triple-mode connectivity (wireless 2.4G, Bluetooth, and wired USB-C), hot-swappable switches, customizable display screens, and integrated knobs for enhanced functionality. This manual provides detailed instructions for setup, operation, and maintenance of your keyboard.

Figure 1: Glacier Skyloong GK104 Pro Mechanical Keyboard and included coiled cable.
2. Package Contents
Please verify that all items are present in your package:
- Glacier Skyloong GK104 Pro Mechanical Keyboard
- USB-A to USB-C Cable (Standard or Premium Coiled Cable)
- Switch and Keycap Puller Tool
- User Manual (this document)

Figure 2: Included premium coiled USB-C cable.

Figure 3: The included switch and keycap puller tool facilitates customization.
3. Setup
3.1 Connectivity Options
The Glacier Skyloong GK104 Pro supports three connection modes:
- Wired Connection: Connect the keyboard to your computer using the provided USB-C cable. This mode provides the most stable connection and charges the keyboard.
- 2.4G Wireless: Insert the 2.4G USB receiver (not explicitly listed in "whats_in_the_box" but implied by "wireless" feature) into an available USB port on your device. The keyboard should automatically connect.
- Bluetooth 5.1:
- Ensure the keyboard is in Bluetooth pairing mode (refer to keyboard's specific indicator for Bluetooth).
- On your device (PC, smartphone, tablet), navigate to Bluetooth settings.
- Select the keyboard from the list of available devices to pair.

Figure 4: The keyboard supports Bluetooth 5.1, 2.4G wireless, and wired connections.
3.2 Software Installation
For full customization of RGB lighting, key remapping, and screen functions, it is recommended to install the official software. The primary driver for RGB and key customization is the GK6Xplus Driver (also known as CMSengine). For screen customization, use GMonitor V2.2. Please visit the official Glacier website for the latest software versions and installation instructions.
The keyboard supports both Windows and Mac operating systems. Dedicated drivers or applications are available for each platform.

Figure 5: Software interfaces for Windows and Mac systems.
4. Operating Instructions
4.1 Basic Keyboard Functions
The GK104 Pro functions as a standard full-size keyboard. All keys perform their labeled functions by default. For advanced key remapping, refer to the software section (3.2).
4.2 Screen and Knob Functions
The keyboard features a vibrant TFT LCD RGB screen (available in 1.7-inch or 2.0-inch resolutions) and integrated knobs for quick adjustments.
- Screen Display: The screen can display various information, images, or GIFs (up to 15MB).
- Screen Menu: To access the screen's internal menu, hold FN + Menu button (the button next to the screen) for approximately 3 seconds. Use the arrow keys, Enter, and Back to navigate. Language settings are typically found at the bottom of this menu.
- Switching Views: Press FN + ~` to cycle through different display views on the screen.
- Knob Control: The knobs are typically used for volume adjustment and other multimedia controls. Their functions can be customized via the software.

Figure 6: The color screen and cyclone shaft knob modules are hot-swappable for customization.
4.3 Integrated Calculator Function
The GK104 Pro includes a voice broadcast assistant for its calculator function, enhancing productivity.
- Activate Calculator: Press the switch located on the right side of the keyboard to the "I" position to activate the calculator function.
- Normal Digital Area: Press the switch towards "O" for normal digital area function.
- Voice Broadcast Toggle: Press FN + Num0 (on the number pad) to turn the voice broadcast on or off.

Figure 7: The calculator function can be activated via a dedicated switch.

Figure 8: The keyboard can function as a standalone calculator.
4.4 Hot-Swappable Switches and Keycaps
The GK104 Pro supports hot-swappable 3-pin or 5-pin mechanical switches, allowing for easy customization without soldering. The keycaps are also replaceable.
- Replacing Switches: Use the included switch puller tool to gently remove existing switches. Align the pins of the new switch with the sockets on the PCB and press firmly until it clicks into place.
- Replacing Keycaps: Use the keycap puller side of the tool to carefully remove keycaps. Press new keycaps onto the switch stems until secure.

Figure 9: Hot-swappable design allows for easy switch replacement.

Figure 10: The keyboard features OEM-PBT side print keycaps.
4.5 Split Space Bar Functionality
The keyboard supports a split space bar configuration, which can be replaced with a normal space bar if preferred.
- The split space bar module can be easily replaced by swapping the satellite shaft and keycap.
- This feature allows for greater customization and ergonomic preference.

Figure 11: The split space bar can be freely replaced with a normal space bar.
4.6 RGB Lighting Control
The keyboard features RGB backlighting with various effects.
- Toggle Backlight: Press FN + 9 to turn the backlight on or off.
- Advanced Customization: Use the GK6Xplus Driver (CMSengine) software for detailed control over RGB patterns, colors, and brightness.
4.7 Profile Management
The keyboard supports different profiles for various operating systems or user preferences.
- Switch to Windows Profile: Hold FN + 6 (above T/Y keys) for approximately 6 seconds, or until the key lights up white, to switch to the Windows profile. This profile is often used for saving custom settings via software.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your keyboard.
- Cleaning: Regularly clean the keyboard with a soft, dry cloth. For deeper cleaning, remove keycaps and use compressed air to clear debris from between switches. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Liquid Exposure: Avoid spilling liquids on the keyboard. In case of accidental spills, immediately disconnect the keyboard, dry it thoroughly, and allow it to air dry completely before reconnecting.
6. Troubleshooting
If you encounter issues with your Glacier Skyloong GK104 Pro, refer to the following common solutions:
- Connectivity Issues:
- Ensure the cable is securely connected in wired mode.
- For 2.4G wireless, verify the USB receiver is properly inserted and the keyboard is in 2.4G mode.
- For Bluetooth, ensure the keyboard is in pairing mode and your device's Bluetooth is enabled and searching. Try re-pairing the device.
- Software Malfunctions:
- Ensure you have downloaded the correct and latest version of the GK6Xplus Driver (CMSengine) and GMonitor V2.2 from the official Glacier website.
- If the screen customization software (GMonitor V2.2) fails to send images, try unplugging and replugging the keyboard while the software is open.
- Restart your computer and the keyboard.
- Keypress Sounds: If the keyboard produces unexpected sounds on keypress (e.g., "bubble pop" sounds), press FN + Num0 to silence the voice broadcast.
- Battery Indicator Light: If the '4' key is lit a different color, it might indicate the battery indicator light. Hold FN + 4 (above E/R keys) for 6 seconds to remove this light.
- Screen Not Displaying: If the screen goes black or is unresponsive, ensure the screen module is properly seated. If issues persist, contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | Glacier Skyloong GK104 Pro |
| Brand | Glacier |
| Connectivity Technology | Wired/Wireless (2.4G, Bluetooth 5.1) |
| Keyboard Description | Mechanical |
| Number of Keys | 104 |
| Special Features | Backlit (RGB), Customizable Display Keys, Ergonomic, Hot-Swappable, Volume Knobs, Voice Calculator, Split Space Bar |
| Compatible Devices | Gaming Console, PC, Smartphone, Tablet |
| Item Weight | 3.89 pounds |
| Package Dimensions | 19 x 7.5 x 2.2 inches |
| Keyboard Backlighting Color Support | RGB |
| Style | Modern |
8. Warranty and Support
Glacier products are manufactured to high quality standards. For warranty information, technical support, or service inquiries, please visit the official Glacier website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.
Official Website: Glacier PC Gaming Store