Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Coidea BT54 Mechanical Keyboard. This customizable keyboard is designed for various applications, including office work, gaming, and multimedia control, offering both wired and wireless connectivity options.


Note: The 54-key version does not allow for changing the RGB color for every key. If you require individual key RGB customization, please consider the 35-key version.

1. Setup
1.1 Package Contents
Your package should include:
- Coidea BT54 Mechanical Keyboard (35-key or 54-key version)
- 1.5m Data Cable (USB)
- Wireless Receiver (for 2.4G wireless models)

1.2 Connectivity Options
The Coidea BT54 keyboard supports multiple connection methods:
- Wired Connection: Connect the keyboard directly to your computer using the provided 1.5m USB data cable.
- Bluetooth Connection: For Bluetooth-enabled devices.
- 2.4G Wireless Connection: Use the included wireless receiver for a stable 2.4G wireless connection.
1.3 Software Installation and Key Configuration
To customize your keyboard's functions, you will need to use the dedicated configuration software. Follow these steps:
- Open Configuration Software: Launch the Coidea Smart KeyBoard software on your computer.
- Connect Keyboard: Ensure your keyboard is connected to the computer via the data cable.
- Select Key: In the software interface, double-click the specific key you wish to configure.
- Select Function: Choose the desired function from the available options (e.g., basic key, system function, mouse function, text input, macros).
- Download to Keyboard: Once configured, download the settings to the keyboard. The settings will be stored in the keyboard's onboard memory.



2. Operating Instructions
2.1 Key Customization and Macros
The Coidea BT54 allows extensive customization of its keys:
- Single Key Replacement: Assign any standard keyboard key function to any key on the keypad.
- Key Combinations: Program a single key to execute complex key combinations, such as CTRL+C for copy.
- Macro Actions: Input a series of keyboard and mouse actions with a single key press. This includes background recording of actions, support for random delays, and onboard memory for up to 6000-bit macros.
- Mouse Functions: Configure keys to perform mouse actions like right-click, left-click, movement, or clicking at a fixed point.

2.2 Multimedia and Application Control
The keyboard can be configured for various multimedia and application-specific shortcuts:
- Multimedia Control: Easily control media playback (play/pause, volume adjustment, next/previous song, fast forward/rewind).
- Office Shortcuts: Create one-key shortcuts for common office tasks like copy, paste, find, save, switch, undo, and more, significantly improving work efficiency.
- Gaming Assistance: Program multi-key actions for games, allowing for complex maneuvers with a single key press.


2.3 Backlight Features
The keyboard features ARGB colorful backlighting with multiple modes:
- Backlight Modes: Choose from Close, Always bright, Breathing, Brilliant, and Water pattern.
- Macro Status Indication: The backlight can also indicate macro status.
- Note: For wireless models, the backlight will only illuminate when the data cable is plugged in.

2.4 Operating System Compatibility and Onboard Memory
The keyboard's functionality may vary slightly depending on the operating system and whether the configuration software is running.
| Operating System | Mode | Functionality |
|---|---|---|
| Windows 7 and above | Wired, Wireless | All functions described in the details page are supported. |
| Bluetooth | One-key opening and one-key Chinese are not supported, and data cable setting function is required. | |
| Windows XP | Wired, Wireless | There is no configuration software, you need to set up functions on your computer to use them. Does not support one-key open and one-key Chinese. |
| Bluetooth | Not supported. | |
| Mac | Wired, Wireless | One-click Chinese is not supported. |
| Bluetooth | One-key opening and one-key Chinese are not supported, and data cable setting function is required. | |
| Android Phone/Tablet | Wired, Wireless | You need to set up functions on your computer to use them. Does not support one-key open and one-key Chinese. Does not support absolute mouse coordinates and screen. |
| Bluetooth | You need to set up functions on your computer to use them. Does not support one-key open and one-key Chinese. Does not support absolute mouse coordinates and screen. | |
| iOS Phone/Tablet | Wired, Wireless | You need to set up functions on your computer to use them. USB expansion is not supported. Does not support one-key open and one-key Chinese. Does not support absolute mouse coordinates and screen. |
| Bluetooth | You need to set up functions on your computer to use them. USB expansion is not supported. Does not support one-key open and one-key Chinese. Does not support absolute mouse coordinates and screen. | |
| Linux and others | Wired, Wireless | There is no configuration software, you need to set up functions on your computer to use them. Does not support one-key open and one-key Chinese. |
| Bluetooth | There is no configuration software, you need to set up functions on your computer to use them. Does not support one-key open and one-key Chinese. |

The keyboard's onboard memory allows certain functions to persist even when the configuration software is closed or the keyboard is connected to a different device without the software.
| Functions that need to be connected to the software to be used | Functions that do not need to be connected to the software (Onboard Storage) |
|---|---|
| 1. A key to open the web page/file function | 1. Replace ordinary keys |
| 2. One key input Chinese function | 2. Shortcut keys, key combinations, macros, multimedia keys |
| 3. Automatic switching scene function | 3. Mouse functions (e.g., left/right click, move) |
| 4. Automatically switch the scene according to the foreground window | 4. Volume adjustment, media control |
| 5. Display suspension | 5. Key switch scene |

3. Maintenance
3.1 Battery Charging (Wireless Models)
The wireless versions of the Coidea BT54 keyboard are equipped with a built-in lithium battery. To charge, connect the keyboard to a power source using the provided USB data cable. A full charge provides approximately 500 hours of continuous use in wireless mode and 300 hours in Bluetooth mode.

3.2 General Care
- Keep the keyboard clean by wiping it with a soft, dry cloth.
- Avoid exposing the keyboard to excessive moisture or extreme temperatures.
- Do not attempt to disassemble the keyboard, as this may void any potential warranty.
4. Troubleshooting
- Backlight not working wirelessly: The wireless backlight will only light up when the data cable is plugged in. This is normal operation.
- Keyboard not connecting via Bluetooth/2.4G:
- Ensure the keyboard is charged.
- Verify the correct mode (Bluetooth/2.4G) is selected on the keyboard.
- For 2.4G, ensure the wireless receiver is properly plugged into your device.
- For Bluetooth, ensure your device's Bluetooth is enabled and the keyboard is in pairing mode.
- Custom keys not working:
- Ensure the keyboard is connected to the computer via data cable when using the configuration software.
- Verify that the settings were successfully "Downloaded to Keyboard" after configuration.
- Check the "Functional Differences After Closing Software" table (Table 2) to see if the function requires the software to be running.
- Software not detecting keyboard: Ensure the keyboard is connected via the USB data cable and the software is running. Try restarting both the software and the keyboard.
5. Specifications
| Feature | Detail |
|---|---|
| Brand Name | YANFU |
| Type | Bluetooth Wireless |
| Operation Style | Mechanical |
| Keyboard Standard | Mini Keyboard (35-key / 54-key options) |
| Application | Desktop, Laptop, Tablet |
| Interface Type | USB |
| Keycup Material | ABS Plastic |
| Battery Included | Yes (for wireless models) |
| Battery Life (Wireless) | Approx. 500 hours continuous use |
| Battery Life (Bluetooth) | Approx. 300 hours continuous use |
| Language | English |
| Origin | Mainland China |
| Package | Yes |
| Wrist Support | No |
| Style | Standard |
| Full Size keyboard | No |
| High-concerned chemical | None |
| Certification | NONE |
5.1 Dimensions and Weight
| Model | Dimensions (L x W x H) | Weight (Wired) | Weight (Wireless) |
|---|---|---|---|
| 54-key Version | 14.2 cm x 11.4 cm x 2.8 cm | Approx. 212g | Approx. 224g |
| 35-key Version | 17.5 cm x 13.3 cm x 2.8 cm | Approx. 310g | Approx. 322g |


6. User Tips
- Maximize Customization: Experiment with the configuration software to create personalized macros for your most frequent tasks in different applications.
- Leverage Onboard Memory: For functions that don't require the software to be running (e.g., basic key replacements, common shortcuts), configure them once and they'll work on any compatible device without needing the software installed.
- Wired for Backlight: If you primarily use the keyboard wirelessly but want to utilize the backlight, remember to connect the data cable.
- OS Specifics: Always refer to Table 1 for specific functional limitations or requirements when using the keyboard with different operating systems.
7. Warranty and Support
For warranty information and technical support, please refer to the seller's official store page or contact customer service. Keep your purchase receipt for any warranty claims.