Redragon K552-KR: software installation, Rainbow RGB configuration, and Device is not detected error in Windows 11/10

Last Updated on 18.09.2026 by DriverNew

Redragon K552-KR is a wired TKL mechanical keyboard with Rainbow RGB backlighting. A separate Redragon driver is not required for normal operation: after connection, Windows uses the standard system HID driver. Additional Redragon Software is required to configure functions supported by the specific hardware revision of the keyboard.

Part 1. Installing and connecting Redragon K552-KR

Is a separate driver required?

For typing and normal operation, Redragon K552-KR uses the standard Windows HID driver. After the keyboard is connected via USB, Windows 11 or Windows 10 should detect it automatically.

It is important to distinguish between three different components:

If K552-KR already types text, the system HID driver is installed and working. Reinstalling it just because Redragon Software does not detect the keyboard is usually unnecessary.

Current and older K552-KR revisions

K552-KR has an important characteristic: keyboards with the same basic model designation are available in different hardware revisions.

Redragon provides separate Windows Software for K552-KR. However, the availability of official software does not mean that it is necessarily compatible with every K552-KR manufactured earlier.

Therefore, two situations are possible:

• a current K552-KR revision is detected by the official Software and allows the available software settings to be used;
• an older or regional revision works normally in Windows as a keyboard, but Software reports that the device is not detected.

Which Software to use

For this model, use software designed specifically for Redragon K552-KR.

Official Software download page for Redragon K552-KR

The verified installer file is named:

Redragon_K552-KR_Software.exe

The checksum applies to the verified copy of the installer. If Redragon updates the file later, its size and SHA-256 may change.

The installer does not have a digital signature

The verified Redragon_K552-KR_Software.exe does not contain an embedded Authenticode signature. Therefore, Windows may display an additional warning when it is launched.

Connecting the keyboard

1. Connect K552-KR directly to a USB port on the computer.
2. Wait for Windows to detect the device automatically.
3. Open Notepad or another text input field.
4. Check several letter keys, Space, Enter, and Backspace.
5. If text input works normally, you can proceed with installing Redragon Software.

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.

Checking in Windows 11

If the keyboard does not work even before Redragon Software is installed:

1. Right-click the Start button.
2. Open Device Manager.
3. Check the Keyboards section.
4. Check the Human Interface Devices section.
5. Check whether an unknown USB device or a device with a warning icon appears after connection.

You can also open:

Settings → Bluetooth & devices → Devices

The Redragon name may not be displayed explicitly. A HID keyboard may be detected under a standard Windows name.

Checking in Windows 10

1. Right-click Start.
2. Select Device Manager.
3. Check the Keyboards and Human Interface Devices sections.

If the keyboard types text normally, there is no need to install a separate Redragon system driver.

Installing Redragon Software

1. Connect K552-KR to the computer.
2. Close Redragon programs intended for other keyboards.
3. Run Redragon_K552-KR_Software.exe.
4. If Windows displays a User Account Control prompt, check the name of the file being launched.
5. Complete the installation by following the installer’s instructions.
6. After installation is complete, start Redragon Software.
7. Check whether the software detects the connected K552-KR.

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 — for example, the lighting control section or key settings.

If software for another K552 was previously installed

Software for a similar model may install in Windows, but this does not mean it is compatible with K552-KR.

Windows 11

1. Open Settings → Apps → Installed apps.
2. Find the previously installed Redragon program for another keyboard.
3. Uninstall it.
4. Restart Windows.
5. Connect K552-KR.
6. Install the correct Redragon_K552-KR_Software.exe.

Windows 10

1. Open Settings → Apps → Apps & features.
2. Uninstall the unsuitable Redragon program.
3. Restart the computer.
4. Install Software for K552-KR.

When normally reinstalling Redragon Software, there is no need to remove system HID devices from Device Manager.

Part 2. Rainbow RGB configuration and troubleshooting

What Rainbow RGB means on K552-KR

When 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.

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.

Configuring the backlight through Software

If the installed Software detects K552-KR:

1. Start the software while the keyboard is connected.
2. Open the lighting control section.
3. Review the available modes and effects.
4. Select the required mode.
5. Configure the settings available for that mode.
6. Apply the changes using the software.

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.

Why you cannot select any color for every key

One common source of confusion is the use of the term RGB for Rainbow backlighting.

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.

Before looking for a malfunction, check:

• the exact model on the keyboard label;
• whether instructions for K552-RGB are being used instead of K552-KR;
• whether the official K552-KR Software detects the keyboard;
• which functions the software actually provides after detecting the device.

Do not install software for K552-RGB just to obtain additional color settings.

Device is not detected error

If Redragon Software starts but reports that the device is not detected, first determine whether the keyboard itself works in Windows.

The keyboard types, but Software does not detect it

This is the most important scenario for K552-KR.

1. Close Redragon Software.
2. Check that normal text input works.
3. Make sure Software specifically for K552-KR is installed.
4. Disconnect the keyboard.
5. Connect it to another USB port directly on the computer.
6. Wait for Windows to detect the device.
7. Start the software again.

If the Device is not detected message remains despite normal keyboard operation, the Software is likely incompatible with this hardware revision.

An older K552-KR is not detected by newer Software

If 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.

Signs of this situation:

• Windows reliably detects the keyboard;
• text input works;
• the built-in backlighting works;
• the official K552-KR Software installs;
• the software reports that the device was not found.

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.

Software opens, but changes are not applied

If the software detects K552-KR but the selected backlight settings are not applied:

1. Select another available mode and try applying it.
2. Close the software completely.
3. Disconnect the keyboard.
4. Connect it again.
5. Start Software again.
6. Check the connection through another USB port.
7. If Software for another K552 was previously installed, uninstall it and reinstall the correct software.

If some settings are unavailable, this may also be a limitation of the Rainbow version rather than a software error.

After installing the software, the keyboard types the wrong characters

If 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.

Windows 11

Open:

Settings → Time & language → Language & region

Check the added languages and keyboard layouts.

Windows 10

Open:

Settings → Time & language → Language

Check the installed keyboard layout.

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.

Regional ISO version and incorrect software

If 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.

First check:

• the exact model designation;
• the regional keyboard layout;
• whether the correct Windows layout is selected;
• whether Software specifically for K552-KR is being used.

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.

One key does not work

If the problem affects an individual key, first determine whether it is related to the software, layout, or the switch itself.

Hot-swap and switch replacement

The current K552-KR version is specified as hot-swappable and designed for compatible 3-pin Redragon/Outemu switches.

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.

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.

Software stopped detecting the keyboard after a Windows update

If K552-KR continues to type after a Windows update but the software no longer detects the device:

1. Restart the computer.
2. Check normal text input.
3. Connect the keyboard to another USB port.
4. Close and restart Redragon Software.
5. If this does not help, uninstall only the Redragon program.
6. Restart Windows.
7. Install Software for K552-KR again.

If the keyboard’s HID functions work, you should not remove standard Windows drivers unless necessary.

How to completely reinstall Redragon Software

Windows 11

1. Open Settings → Apps → Installed apps.
2. Find Redragon Software.
3. Uninstall the program.
4. Restart the computer.
5. Check that K552-KR continues to work as a normal keyboard.
6. Install Redragon_K552-KR_Software.exe again.

Windows 10

1. Open Settings → Apps → Apps & features.
2. Uninstall the Redragon program.
3. Restart the computer.
4. Check keyboard operation.
5. Install the correct Software again.

The keyboard is not detected at all

If K552-KR does not type and Windows does not react when it is connected, the problem should be diagnosed before installing Redragon Software.

1. Disconnect the keyboard.
2. Connect it to another USB port.
3. Do not use a USB hub.
4. Test the keyboard on another computer.
5. Check Device Manager to see whether a new device appears after connection.

If the keyboard does not work on several computers, reinstalling Redragon Software usually will not solve the problem because the additional software does not replace the basic USB/HID connection.

Do not install firmware from another K552

Incompatible firmware can potentially cause an incorrect layout, improper operation of individual keys, or prevent the device from being detected normally.

If the keyboard works as a HID device and the problem exists only in Redragon Software, a firmware update should not be the first troubleshooting method.

Do not use unconfirmed Fn combinations from other K552 models

Instructions found online may include various Fn + Ins, Fn + Home, Fn + PgUp, Fn + Del, Fn + End, and Fn + PgDn combinations, as well as different Factory Reset procedures.

These instructions apply to different variants of the K552 family. They should be used with K552-KR only when the corresponding combination is confirmed for the specific hardware version.

For the same reason, reset instructions, RGB mode switching procedures, or service functions from K552-RGB, K552P-KB, and other similar models should not automatically be applied to K552-KR.