Redragon Harpe Wireless K503P-KS: driver, software, Bluetooth, 2.4 GHz, and lighting

Last Updated on 13.09.2026 by DriverNew

Redragon Harpe Wireless K503P-KS does not require a separate proprietary driver for normal operation in Windows. The keyboard can connect via USB, a 2.4 GHz wireless receiver, or Bluetooth. In all of these modes, Windows uses the standard system HID drivers.

Proprietary Redragon software is also available for K503P-KS. It is an additional configuration utility, not a mandatory driver. If the keyboard already works and the built-in lighting modes and FN key combinations are sufficient for your needs, you do not need to install this software.

Does Redragon K503P-KS need a driver?

A separate Redragon driver is not required for K503P-KS. After the keyboard is connected, Windows automatically detects it as a standard input device and installs the system HID driver.

A special driver is not required for:

• wired USB connection;
• 2.4 GHz wireless connection through the included USB receiver;
• Bluetooth connection;
• normal text input;
• multimedia functions;
• using the built-in RGB lighting modes.

If the keyboard already works in Windows, there is no need to look for another driver or install software for similar Redragon models.

Is software available for K503P-KS?

Yes. Proprietary Redragon software is available for K503P-KS.

On the official website, the software is published under the designation S101M-KS Gaming Combo — Keyboard. K503P-KS and S101M-KS belong to the same hardware family, so this difference in the software name does not mean that a random installer for another keyboard was selected.

At the time of verification, the official installer is named:

Redragon_S101M-KS_GAMING_KEYBOARD_setup_1.0.4.4.exe

File verification confirms the following internal information:

• ProductName: Redragon S101M-KS GAMING KEYBOARD;
• FileDescription: Redragon S101M-KS GAMING KEYBOARD Setup;
• ProductVersion: 1.0.4.4.

Look for the software in the official Redragon download center. In the device list, find S101M-KS Gaming Combo and the keyboard download.

The proprietary software only needs to be installed if additional settings available through its interface are required.

Connecting K503P-KS via USB

K503P-KS can be used as a standard wired USB keyboard.

1. Connect the USB Type-C cable to the keyboard.
2. Connect the other end of the cable to a USB port on the computer.
3. Wait a few seconds while Windows detects the device.
4. Test text input.

If the keyboard is turned on and a wireless mode is currently selected, press:

FN + 5

This key combination switches K503P-KS to wired USB mode.

The built-in battery is also charged while the keyboard is connected via USB.

Connecting via 2.4 GHz

The included USB receiver is used for the 2.4 GHz wireless connection.

1. Turn on the keyboard.
2. Connect the included USB receiver to an available USB port on the computer.
3. Press FN + 4 to select 2.4 GHz mode.
4. Wait for the connection to be established.
5. Test text input.

There is no need to install a separate driver for the wireless receiver.

If the connection to the USB receiver is lost

If the keyboard does not connect to the included receiver automatically, pair it again.

1. Turn on the keyboard.
2. Connect the USB receiver to the computer.
3. Press and hold FN + 4 for approximately 3 seconds.
4. The M indicator will start flashing yellow rapidly.
5. Wait for pairing to complete.

If the connection is not established, remove the USB receiver, turn the keyboard off and back on. Activate pairing mode using FN + 4, and after the indicator starts flashing rapidly, reconnect the receiver to the computer.

If this does not help, try another USB port.

Connecting K503P-KS via Bluetooth

K503P-KS supports three Bluetooth profiles. This allows the keyboard to be paired in advance with several devices and switched between them.

Initial Bluetooth pairing

1. Turn on the keyboard.
2. Press and hold FN + 1, FN + 2, or FN + 3 to select a profile and start pairing.
3. The M indicator will start flashing rapidly.
4. Open Bluetooth settings on the computer.
5. Start searching for new devices.
6. Select the keyboard from the list and complete pairing.

In the Bluetooth device list, the device may appear as BT3.0 Keyboard or BT5.0 Keyboard.

Bluetooth in Windows 11

Open Settings → Bluetooth & devices. Turn on Bluetooth, then select Add device → Bluetooth.

When the keyboard appears in the list, select it and wait for the connection to complete.

Bluetooth in Windows 10

Open Settings → Devices → Bluetooth & other devices. Turn on Bluetooth and select Add Bluetooth or other device → Bluetooth.

Select the keyboard from the list of detected devices.

How to switch between connection modes

If the keyboard suddenly stops responding to key presses, first make sure the correct connection mode is selected.

Controlling RGB lighting without software

Redragon software does not need to be installed to use the built-in RGB lighting. The keyboard has eight built-in lighting modes.

Several adjustment levels are available for both brightness and speed.

In modes that support color selection, FN + ENTER cycles through red, green, blue, yellow, purple, cyan, white, and the multicolor RGB option.

Speed adjustment works only in dynamic modes.

Resetting the keyboard settings

If the connection mode, lighting, or other settings do not work as expected, reset the keyboard.

Press and hold:

FN + ESC

Hold the key combination for approximately 3 seconds.

After the reset, select the required connection mode again.

Locking the Windows key

While gaming, the Windows key can be locked so that an accidental press does not open the Start menu.

Use:

FN + WIN

Pressing it again removes the lock.

If the Windows key suddenly stops working, check this key combination first.

Multimedia keyboard shortcuts

The behavior of some multimedia commands depends on the applications set as defaults in the operating system.

Power-saving mode

In wireless modes, the keyboard automatically reduces battery power consumption.

• After approximately 3 minutes of inactivity, the lighting turns off.
• After approximately 30 minutes of inactivity, the keyboard enters power-saving mode.
• To exit power-saving mode, press any key.

When the battery level is low, the lighting turns off and the M indicator starts flashing red slowly.

Charging the battery

K503P-KS has a built-in 4000 mAh battery.

1. Connect the USB Type-C cable to the keyboard.
2. Connect the other end of the cable to a USB port on the computer or a compatible USB power source.
3. During charging, the indicator lights red.
4. When charging is complete, the indicator turns green.

If the wireless connection becomes unstable, charge the keyboard first. Do not try to fix a nearly discharged battery problem by installing another driver.

How to install Redragon software

It is recommended to install the software only if additional settings unavailable through the built-in key combinations are required.

1. Open the official Redragon download center.
2. Find S101M-KS Gaming Combo.
3. Select the keyboard software download.
4. Download the installation file for Windows.
5. Before installation, close other Redragon device configuration programs.

6. Run the installer and complete the installation.
7. After installation, connect the keyboard directly to a USB port on the computer.
8. Press FN + 5 to select wired mode.
9. Launch the Redragon software.

Installing this software is not required for normal K503P-KS operation. Windows continues to use the standard HID keyboard driver.

If the Redragon software does not detect the keyboard

Sometimes the software may report that the device is not connected even though the keyboard itself works normally.

In this case, do the following:

1. Make sure the installed software is specifically for S101M-KS / K503P-KS.
2. Connect the keyboard directly to the computer using a USB cable.
3. Do not use a USB hub or docking station for testing.
4. Press FN + 5 to select wired mode.
5. Close the Redragon software.
6. Launch it again.

It is also not recommended to install several Redragon programs for different models at the same time in an attempt to find a suitable utility.

How to uninstall Redragon software

If the software is not needed or does not recognize the keyboard, it can be removed. After uninstallation, K503P-KS will continue to work with the standard Windows driver.

Windows 11

1. Open Settings → Apps → Installed apps.
2. Find the Redragon software.
3. Open the software menu and select Uninstall.
4. Complete the uninstallation.
5. Restart Windows.

Windows 10

1. Open Settings → Apps → Apps & features.
2. Find the Redragon software.
3. Select it and click Uninstall.
4. Complete the uninstallation.
5. Restart Windows.

Uninstalling the software does not remove the standard HID keyboard driver.

If K503P-KS does not work

If the keyboard stops responding to key presses, check the connection first instead of reinstalling the software.

1. Connect the keyboard directly to the computer using a USB cable.
2. Press FN + 5 to switch to wired mode.
3. Try another USB port.
4. Press and hold FN + ESC for approximately 3 seconds to reset the settings.
5. If wired mode works, test the 2.4 GHz wireless connection and Bluetooth separately.
6. For 2.4 GHz mode, check the USB receiver and, if necessary, re-pair using FN + 4.
7. For Bluetooth, remove the old pairing in Windows settings and pair the keyboard again.
8. Fully charge the battery.
9. If possible, test the keyboard on another computer.

If K503P-KS is not detected even with a wired connection on another computer, installing another Redragon driver will usually not solve the problem. In this case, check the USB cable, keyboard connector, and the device itself.

What you need to know about Redragon K503P-KS

• K503P-KS supports USB, 2.4 GHz wireless connection, and Bluetooth.
• A separate Redragon driver is not required for normal operation.
• Windows uses the standard system HID driver.
• The main RGB lighting modes can be controlled directly from the keyboard.
• Proprietary software is available and is published by Redragon under the designation S101M-KS Gaming Combo — Keyboard.
• The software is an additional configuration utility, not a mandatory driver.
• If the software does not recognize the keyboard, this does not necessarily mean there is a problem with the HID driver.
• K503P-KS should not be confused with the earlier K503-KS or the standard wired K503.