Check whether an unknown device or a device with a warning icon appears after connection.<\/li>\n<\/ol>\nYou can also open:<\/p>\n
Settings \u2192 Bluetooth & devices \u2192 Devices<\/strong><\/p>\nThe Redragon name may not be displayed explicitly. Windows may show the HID keyboard under a standard system name.<\/p>\n
Checking in Windows 10<\/h3>\n\n- Right-click the Start<\/strong> button.<\/li>\n
- Select Device Manager<\/strong>.<\/li>\n
- Check the Keyboards<\/strong> and Human Interface Devices<\/strong> sections.<\/li>\n<\/ol>\n
If the keyboard types normally, there is no need to look for an additional Redragon system driver.<\/p>\n
Installing Redragon Software<\/h3>\n\n- Connect K664-RGB-PRO to the computer.<\/li>\n
- Close Redragon Software for other keyboards if such an application is running.<\/li>\n
- Run
Redragon_K664-Software.exe<\/code> or the identical older installer with the full model names.<\/li>\n- If Windows displays a User Account Control prompt, make sure the correct file is being launched.<\/li>\n
- Complete the installation by following the installer’s instructions.<\/li>\n
- After installation is complete, open Redragon Software.<\/li>\n
- Check whether the connected keyboard is detected.<\/li>\n<\/ol>\n
The exact names of individual buttons and sections may depend on the software version. If a name is unknown, use the purpose of the section as a guide \u2014 lighting, key, macro, or profile configuration.<\/p>\n
If Software for another Redragon keyboard was previously installed<\/h3>\n
Software for another keyboard may install normally in Windows but not support K664-RGB-PRO.<\/p>\n
Windows 11<\/h4>\n\n- Open Settings \u2192 Apps \u2192 Installed apps<\/strong>.<\/li>\n
- Find the previously installed Redragon application.<\/li>\n
- Uninstall Software intended for another model.<\/li>\n
- Restart Windows.<\/li>\n
- Connect K664-RGB-PRO.<\/li>\n
- Check normal text input.<\/li>\n
- Install the correct K664 Software.<\/li>\n<\/ol>\n
Windows 10<\/h4>\n\n- Open Settings \u2192 Apps \u2192 Apps & features<\/strong>.<\/li>\n
- Uninstall the unsuitable Redragon Software.<\/li>\n
- Restart the computer.<\/li>\n
- Check keyboard operation.<\/li>\n
- Install K664 Software again.<\/li>\n<\/ol>\n
There is usually no need to remove standard HID keyboards from Device Manager just to reinstall Redragon Software.<\/p>\n
Part 2. RGB and macro configuration and troubleshooting<\/h2>\nConfiguring RGB through Redragon Software<\/h3>\n
K664 Software provides software-based backlight settings for the supported keyboard.<\/p>\n
\n- Connect K664-RGB-PRO and start Redragon Software.<\/li>\n
- Make sure the software has detected the keyboard.<\/li>\n
- Open the lighting settings section.<\/li>\n
- Select an available effect or mode.<\/li>\n
- Configure the settings offered by the software.<\/li>\n
- Apply the changes.<\/li>\n
- Check the result on the keyboard.<\/li>\n<\/ol>\n
Use only the functions that the software displays for the connected K664-RGB-PRO. Do not rely on the Software interface of another model if the set of elements differs.<\/p>\n
Why there is no table of Fn combinations in this article<\/h3>\n
For K664-RGB-PRO, a separate official manual with an exact list of hardware Fn combinations could not be confirmed.<\/p>\n
Key combinations from
K664WBP-RGB-PRO<\/strong> have intentionally not been transferred to this guide. Shared Software is not sufficient evidence that the hardware commands of the two variants are completely identical.<\/div>\nTherefore, to change RGB, it is recommended to use K664 Software and only confirmed combinations listed in the instructions specifically for your keyboard.<\/p>\n
Creating and using macros<\/h3>\n
K664 Software is also designed to work with macros. The general configuration sequence is as follows:<\/p>\n
\n- Open the macro section in Redragon Software.<\/li>\n
- Create a new sequence.<\/li>\n
- Start recording.<\/li>\n
- Enter the required key sequence.<\/li>\n
- Stop recording.<\/li>\n
- If the corresponding settings are available, check the delays between keystrokes.<\/li>\n
- Save the macro.<\/li>\n
- Assign it to a key that the software allows you to program.<\/li>\n
- Apply the settings and check the result.<\/li>\n<\/ol>\n
Not all keys necessarily support software remapping. If a specific key is unavailable for selection in the software, do not install Software for another model in an attempt to remove this limitation.<\/p>\n
The macro runs too fast or too slowly<\/h3>\n
If Software allows you to edit delays between actions, check the intervals within the macro.<\/p>\n
A delay that is too short may prevent a game or application from processing the sequence in time. A delay that is too long may cause noticeable pauses between actions.<\/p>\n
\n- Open the saved macro.<\/li>\n
- Check the sequence of keystrokes.<\/li>\n
- Check the available intervals between actions.<\/li>\n
- Change them gradually.<\/li>\n
- Save the macro again and test it.<\/li>\n<\/ol>\n
Key remapping does not work<\/h3>\n
If the assigned function does not work:<\/p>\n
\n- Make sure Software detects the keyboard.<\/li>\n
- Check that the change was applied or saved.<\/li>\n
- Make sure the correct key was changed.<\/li>\n
- Try a simple assignment instead of a complex macro.<\/li>\n
- Restart Software and test again.<\/li>\n<\/ol>\n
If normal input from this key works but the software assignment does not, the problem is most likely related to the Software configuration rather than the Windows system HID driver.<\/p>\n
Software does not detect K664-RGB-PRO<\/h3>\n
If the keyboard types normally but the software does not detect the device, troubleshoot the problem separately from the HID driver.<\/p>\n
\n- Close Redragon Software.<\/li>\n
- Check normal text input.<\/li>\n
- Make sure K664 Software specifically is installed.<\/li>\n
- If a wired USB connection is available, use it for diagnostics.<\/li>\n
- Connect the keyboard directly to another USB port on the computer.<\/li>\n
- Wait for Windows to detect the device.<\/li>\n
- Start Software again.<\/li>\n<\/ol>\n
If the keyboard works normally as an input device but only Redragon Software does not detect it, this does not prove that the Windows system driver is faulty.<\/div>\n
Software opens, but RGB changes are not applied<\/h3>\n\n- Make sure the software has detected the device.<\/li>\n
- Select another simple lighting effect.<\/li>\n
- Apply the setting.<\/li>\n
- Close the software completely.<\/li>\n
- Start it again.<\/li>\n
- If possible, test the keyboard through another USB port.<\/li>\n
- If necessary, reinstall K664 Software.<\/li>\n<\/ol>\n
If the keyboard backlight works independently of the software but does not respond only to software changes, the problem is related to the interaction between Software and the device, not necessarily to the LEDs themselves.<\/p>\n
After installing Software, the keyboard types the wrong characters<\/h3>\n
Redragon Software and the Windows language layout are different things. If a key responds but an unexpected character is entered, first check the operating system language settings.<\/p>\n
Windows 11<\/h4>\n
Open:<\/p>\n
Settings \u2192 Time & language \u2192 Language & region<\/strong><\/p>\nCheck the installed languages and keyboard layouts.<\/p>\n
Windows 10<\/h4>\n
Open:<\/p>\n
Settings \u2192 Time & language \u2192 Language<\/strong><\/p>\nCheck the selected keyboard layout.<\/p>\n
If Windows receives the key press but outputs a different character, reinstalling Redragon Software usually should not be the first troubleshooting method.<\/p>\n
One key does not work<\/h3>\n
If the problem affects only one key, first determine whether it is related to the hardware or only to the software configuration.<\/p>\n
\n\n\n| Symptom<\/th>\n | What to check<\/th>\n<\/tr>\n<\/thead>\n |
\n\n| The key enters a different character<\/td>\n | Windows layout<\/td>\n<\/tr>\n |
\n| A normal key press works, but the macro does not run<\/td>\n | Assignment in Redragon Software<\/td>\n<\/tr>\n |
\n| The key works, but its RGB does not change through the software<\/td>\n | Selected RGB mode and whether the settings were applied<\/td>\n<\/tr>\n |
\n| The key press is missed even when Software is not running<\/td>\n | A possible hardware problem with the key or switch<\/td>\n<\/tr>\n |
\n| The key does not respond on several computers<\/td>\n | A hardware fault in the keyboard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n |