Installer type<\/strong><\/td>\n| Inno Setup, Windows application<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n The checksum applies to the verified copy of the installer. If Redragon updates the file later, its size and SHA-256 may change.<\/p>\n The installer does not have a digital signature<\/h3>\nThe verified Redragon_K552-KR_Software.exe<\/code> does not contain an embedded Authenticode signature. Therefore, Windows may display an additional warning when it is launched.<\/p>\nDo not disable Microsoft Defender, SmartScreen, or other Windows security features just to run the installer. First make sure that the file was obtained from the official Redragon page and is intended specifically for K552-KR.<\/div>\n Connecting the keyboard<\/h3>\n\n- Connect K552-KR directly to a USB port on the computer.<\/li>\n
- Wait for Windows to detect the device automatically.<\/li>\n
- Open Notepad or another text input field.<\/li>\n
- Check several letter keys, Space, Enter, and Backspace.<\/li>\n
- If text input works normally, you can proceed with installing Redragon Software.<\/li>\n<\/ol>\n
If there are problems detecting the device, temporarily avoid using a USB hub, docking station, monitor with USB ports, or extension cable. Connect the keyboard directly to the computer.<\/p>\n Checking in Windows 11<\/h3>\nIf the keyboard does not work even before Redragon Software is installed:<\/p>\n \n- Right-click the Start<\/strong> button.<\/li>\n
- Open Device Manager<\/strong>.<\/li>\n
- Check the Keyboards<\/strong> section.<\/li>\n
- Check the Human Interface Devices<\/strong> section.<\/li>\n
- Check whether an unknown USB device or a device with a warning icon appears after connection.<\/li>\n<\/ol>\n
You can also open:<\/p>\n Settings \u2192 Bluetooth & devices \u2192 Devices<\/strong><\/p>\nThe Redragon name may not be displayed explicitly. A HID keyboard may be detected under a standard Windows name.<\/p>\n Checking in Windows 10<\/h3>\n\n- Right-click Start<\/strong>.<\/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 text normally, there is no need to install a separate Redragon system driver.<\/p>\n Installing Redragon Software<\/h3>\n\n- Connect K552-KR to the computer.<\/li>\n
- Close Redragon programs intended for other keyboards.<\/li>\n
- Run
Redragon_K552-KR_Software.exe<\/code>.<\/li>\n- If Windows displays a User Account Control prompt, check the name of the file being launched.<\/li>\n
- Complete the installation by following the installer’s instructions.<\/li>\n
- After installation is complete, start Redragon Software.<\/li>\n
- Check whether the software detects the connected K552-KR.<\/li>\n<\/ol>\n
The exact names of individual software sections may differ depending on the Software version. If the name of an interface element is unknown, use its purpose as a guide \u2014 for example, the lighting control section or key settings.<\/p>\n If software for another K552 was previously installed<\/h3>\nSoftware for a similar model may install in Windows, but this does not mean it is compatible with K552-KR.<\/p>\n Windows 11<\/h4>\n\n- Open Settings \u2192 Apps \u2192 Installed apps<\/strong>.<\/li>\n
- Find the previously installed Redragon program for another keyboard.<\/li>\n
- Uninstall it.<\/li>\n
- Restart Windows.<\/li>\n
- Connect K552-KR.<\/li>\n
- Install the correct
Redragon_K552-KR_Software.exe<\/code>.<\/li>\n<\/ol>\nWindows 10<\/h4>\n\n- Open Settings \u2192 Apps \u2192 Apps & features<\/strong>.<\/li>\n
- Uninstall the unsuitable Redragon program.<\/li>\n
- Restart the computer.<\/li>\n
- Install Software for K552-KR.<\/li>\n<\/ol>\n
When normally reinstalling Redragon Software, there is no need to remove system HID devices from Device Manager.<\/p>\n Part 2. Rainbow RGB configuration and troubleshooting<\/h2>\nWhat Rainbow RGB means on K552-KR<\/h3>\nWhen describing K552-KR, it is important not to confuse Rainbow backlighting with fully addressable RGB backlighting that allows any of millions of colors to be freely assigned to each individual key.<\/p>\n The current K552-KR is specified with Rainbow backlighting featuring several colors and various effects. Therefore, the presence of RGB in the name or description does not mean that a specific revision allows absolutely any color to be assigned to every key.<\/p>\n If the keyboard displays multicolor effects but the software does not allow an arbitrary color to be selected for each key, this does not by itself prove a malfunction. First consider the capabilities of the specific Rainbow version of K552-KR.<\/div>\n Configuring the backlight through Software<\/h3>\nIf the installed Software detects K552-KR:<\/p>\n \n- Start the software while the keyboard is connected.<\/li>\n
- Open the lighting control section.<\/li>\n
- Review the available modes and effects.<\/li>\n
- Select the required mode.<\/li>\n
- Configure the settings available for that mode.<\/li>\n
- Apply the changes using the software.<\/li>\n<\/ol>\n
The available settings depend on the hardware revision and the capabilities of the Rainbow backlighting itself. Do not rely on videos or instructions for K552-RGB and expect K552-KR to provide the same set of color settings.<\/p>\n Why you cannot select any color for every key<\/h3>\nOne common source of confusion is the use of the term RGB for Rainbow backlighting.<\/p>\n If K552-KR offers several preset colors and effects but does not allow an arbitrary color to be assigned to each key, this may be a normal limitation of the specific keyboard version.<\/p>\n Before looking for a malfunction, check:<\/p>\n \n- the exact model on the keyboard label;<\/li>\n
- whether instructions for K552-RGB are being used instead of K552-KR;<\/li>\n
- whether the official K552-KR Software detects the keyboard;<\/li>\n
- which functions the software actually provides after detecting the device.<\/li>\n<\/ul>\n
Do not install software for K552-RGB just to obtain additional color settings.<\/p>\n Device is not detected error<\/h3>\nIf Redragon Software starts but reports that the device is not detected, first determine whether the keyboard itself works in Windows.<\/p>\n The keyboard types, but Software does not detect it<\/h4>\nThis is the most important scenario for K552-KR.<\/p>\n \n- Close Redragon Software.<\/li>\n
- Check that normal text input works.<\/li>\n
- Make sure Software specifically for K552-KR is installed.<\/li>\n
- Disconnect the keyboard.<\/li>\n
- Connect it to another USB port directly on the computer.<\/li>\n
- Wait for Windows to detect the device.<\/li>\n
- Start the software again.<\/li>\n<\/ol>\n
If the Device is not detected<\/strong> message remains despite normal keyboard operation, the Software is likely incompatible with this hardware revision.<\/p>\nDo not try to fix the Device is not detected<\/strong> error by installing firmware from K552-RGB, K552-KRS, K552P-KB, or K552P-KR EU. Incompatible firmware may cause incorrect key operation, layout problems, or controller malfunctions.<\/div>\nAn older K552-KR is not detected by newer Software<\/h3>\nIf the keyboard was manufactured significantly earlier than the release of separate K552-KR Software, normal operation as a HID device still does not guarantee compatibility with current Redragon software.<\/p>\n Signs of this situation:<\/p>\n \n- Windows reliably detects the keyboard;<\/li>\n
- text input works;<\/li>\n
- the built-in backlighting works;<\/li>\n
- the official K552-KR Software installs;<\/li>\n
- the software reports that the device was not found.<\/li>\n<\/ul>\n
If another USB port and a clean installation of the correct Software do not help, do not repeatedly reinstall the Windows HID driver. The problem may be specifically related to the keyboard’s hardware revision.<\/p>\n Software opens, but changes are not applied<\/h3>\nIf the software detects K552-KR but the selected backlight settings are not applied:<\/p>\n \n- Select another available mode and try applying it.<\/li>\n
- Close the software completely.<\/li>\n
- Disconnect the keyboard.<\/li>\n
- Connect it again.<\/li>\n
- Start Software again.<\/li>\n
- Check the connection through another USB port.<\/li>\n
- If Software for another K552 was previously installed, uninstall it and reinstall the correct software.<\/li>\n<\/ol>\n
If some settings are unavailable, this may also be a limitation of the Rainbow version rather than a software error.<\/p>\n After installing the software, the keyboard types the wrong characters<\/h3>\nIf a key physically works but Windows displays a different character, first check the operating system’s language layout. Redragon Software and the Windows keyboard layout perform different tasks.<\/p>\n Windows 11<\/h4>\nOpen:<\/p>\n Settings \u2192 Time & language \u2192 Language & region<\/strong><\/p>\nCheck the added languages and keyboard layouts.<\/p>\n Windows 10<\/h4>\nOpen:<\/p>\n Settings \u2192 Time & language \u2192 Language<\/strong><\/p>\nCheck the installed keyboard layout.<\/p>\n Regional ISO keyboard versions should be checked especially carefully. A mismatch between the physical layout and the layout selected in Windows may look like a malfunction even though the keyboard is working correctly.<\/p>\n Regional ISO version and incorrect software<\/h3>\nIf the physical position of individual keys does not match the keyboard image in Software, do not install firmware from another K552 in an attempt to change the virtual layout.<\/p>\n First check:<\/p>\n \n- the exact model designation;<\/li>\n
- the regional keyboard layout;<\/li>\n
- whether the correct Windows layout is selected;<\/li>\n
- whether Software specifically for K552-KR is being used.<\/li>\n<\/ul>\n
If the problem exists only inside Redragon Software while Windows correctly detects all key presses, the cause may be the software’s layout mapping rather than the mechanical switch.<\/p>\n One key does not work<\/h3>\nIf the problem affects an individual key, first determine whether it is related to the software, layout, or the switch itself.<\/p>\n \n\n\n| Symptom<\/th>\n | What to check<\/th>\n<\/tr>\n<\/thead>\n | \n\n| The key types a different character<\/td>\n | The Windows language layout.<\/td>\n<\/tr>\n | \n| The key works in Windows but is displayed incorrectly in Software<\/td>\n | Software compatibility with the regional layout.<\/td>\n<\/tr>\n | \n| A key press is occasionally missed<\/td>\n | The switch, contact, and key operation without Software.<\/td>\n<\/tr>\n | \n| The key does not respond at all on several computers<\/td>\n | A possible hardware failure of the switch or circuit board.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nHot-swap and switch replacement<\/h3>\nThe current K552-KR version is specified as hot-swappable and designed for compatible 3-pin Redragon\/Outemu switches.<\/p>\n If an individual key works intermittently and Software and the Windows layout have been ruled out as the cause, you can check the switch if the specific K552-KR actually has hot-swap sockets.<\/p>\n Do not automatically apply the specifications of the current K552-KR to every older revision. Before removing a switch, make sure that the specific keyboard actually supports hot-swap.<\/div>\n You should also not assume that any mechanical switch is compatible just because it looks similar. Compatibility with the corresponding 3-pin Redragon\/Outemu switches is confirmed for the current version.<\/p>\n Software stopped detecting the keyboard after a Windows update<\/h3>\nIf K552-KR continues to type after a Windows update but the software no longer detects the device:<\/p>\n \n- Restart the computer.<\/li>\n
- Check normal text input.<\/li>\n
- Connect the keyboard to another USB port.<\/li>\n
- Close and restart Redragon Software.<\/li>\n
- If this does not help, uninstall only the Redragon program.<\/li>\n
- Restart Windows.<\/li>\n
- Install Software for K552-KR again.<\/li>\n<\/ol>\n
If the keyboard’s HID functions work, you should not remove standard Windows drivers unless necessary.<\/p>\n | |