{"id":78919,"date":"2026-09-18T18:52:36","date_gmt":"2026-09-18T15:52:36","guid":{"rendered":"https:\/\/drivernew.com\/?p=78919"},"modified":"2026-09-18T18:52:36","modified_gmt":"2026-09-18T15:52:36","slug":"redragon-k688gb-rgb-pro-bragi-pro-driver-software-bluetooth-and-2-4-ghz-in-windows-11-10","status":"publish","type":"post","link":"https:\/\/drivernew.com\/?p=78919","title":{"rendered":"Redragon K688GB-RGB-PRO BRAGI PRO: driver, software, Bluetooth, and 2.4 GHz in Windows 11\/10"},"content":{"rendered":"

Redragon K688GB-RGB-PRO BRAGI PRO is a 98-key mechanical gaming keyboard with three connection methods: via USB-C cable, through a 2.4 GHz wireless receiver, and via Bluetooth. A separate Redragon system driver is not required for normal use: Windows automatically uses standard HID drivers.<\/p>\n

The proprietary Redragon program is required for additional features, including programming supported keys, creating macros, and advanced RGB lighting configuration.<\/p>\n

Important:<\/strong> this guide is intended specifically for Redragon K688GB-RGB-PRO BRAGI PRO<\/strong>. Before installing the program, check the full model designation on the keyboard label. Do not install software or firmware for K688SP-RGB-PRO, other K688 models, or visually similar keyboards just because their names are similar.<\/div>\n

Does Redragon K688GB-RGB-PRO need a driver?<\/h2>\n

A special Redragon system driver is not required for normal operation.<\/p>\n

    \n
  1. Connect the keyboard to the computer via USB-C, through the 2.4 GHz receiver, or via Bluetooth.<\/li>\n
  2. Wait a few seconds while Windows detects the device.<\/li>\n
  3. Open any text editor.<\/li>\n
  4. Test letters, numbers, Space, Enter, Backspace, and the numeric keypad.<\/li>\n<\/ol>\n

    If the keyboard types, the standard Windows HID driver is already working.<\/p>\n

    There is no need to look for a separate universal K688GB driver or use automatic driver update programs.<\/strong><\/p>\n

    The driver and Redragon program are different components<\/h2>\n

    The standard Windows HID driver provides basic keyboard operation.<\/p>\n

    Redragon Software is an additional program for configuring functions supported by K688GB-RGB-PRO: key reassignment, macros, and RGB settings.<\/p>\n

    If you are satisfied with the factory settings, installing the proprietary program is optional.<\/p>\n

    Three connection methods<\/h2>\n\n\n\n\n\n\n
    Mode<\/th>\nSwitch position<\/th>\nFeatures<\/th>\n<\/tr>\n
    USB-C<\/strong><\/td>\nOFF<\/strong><\/td>\nWired operation, charging, and configuration through Redragon Software.<\/td>\n<\/tr>\n
    2.4 GHz<\/strong><\/td>\n2.4G<\/strong><\/td>\nOperation through the included USB receiver; the Redragon program can also be used in this mode.<\/td>\n<\/tr>\n
    Bluetooth<\/strong><\/td>\nBT<\/strong><\/td>\nUp to three saved Bluetooth profiles. To use Redragon Software, switch to USB or 2.4 GHz.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    How to connect K688GB-RGB-PRO via USB-C<\/h2>\n
      \n
    1. Move the 2.4G\/OFF\/BT<\/strong> switch to OFF<\/strong>.<\/li>\n
    2. Connect the USB-C cable to the keyboard.<\/li>\n
    3. Connect the other end of the cable to the computer.<\/li>\n
    4. Wait for Windows to automatically detect the device.<\/li>\n
    5. Test text input.<\/li>\n<\/ol>\n

      Wired mode works on a Plug & Play basis. There is no need to install the Redragon program first.<\/p>\n

      How to connect the keyboard via 2.4 GHz<\/h2>\n

      If the keyboard and included receiver are already paired:<\/p>\n

        \n
      1. Move the switch to 2.4G<\/strong>.<\/li>\n
      2. Connect the USB receiver to the computer.<\/li>\n
      3. Wait a few seconds.<\/li>\n
      4. Test the keyboard.<\/li>\n<\/ol>\n

        If the connection is not established, perform the pairing procedure again.<\/p>\n

        Re-pairing 2.4 GHz<\/h2>\n\n\n\n\n\n\n\n\n
        Action<\/th>\nWhat to do<\/th>\n<\/tr>\n
        Switch to 2.4 GHz mode<\/td>\nMove the switch to 2.4G<\/strong>.<\/td>\n<\/tr>\n
        Start pairing<\/td>\nHold Fn + 4<\/strong> for about 3 seconds.<\/td>\n<\/tr>\n
        Indicator<\/td>\nThe M indicator should begin flashing white.<\/td>\n<\/tr>\n
        Connect the receiver<\/td>\nConnect the included USB receiver to the computer.<\/td>\n<\/tr>\n
        Successful pairing<\/td>\nAfter the connection is established, the M indicator should remain steadily lit.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
        Use Fn + 4 for this model.<\/strong> You may find recommendations online to use Fn + R because that key combination is used on some other Redragon keyboards. For K688GB-RGB-PRO, the manual specifically indicates Fn + 4<\/strong>.<\/div>\n

        If 2.4 GHz does not work<\/h2>\n

        Users sometimes encounter a situation where wired mode and Bluetooth work, Windows detects the USB receiver, but the keyboard does not connect to it.<\/p>\n

        Check the problem step by step:<\/p>\n

          \n
        1. Make sure the switch is set to 2.4G<\/strong>.<\/li>\n
        2. Fully charge the keyboard.<\/li>\n
        3. Connect the receiver directly to a USB port on the computer, not to a USB hub.<\/li>\n
        4. Try another USB port.<\/li>\n
        5. Repeat pairing using Fn + 4<\/strong>.<\/li>\n
        6. Check whether the keyboard works via USB-C.<\/li>\n
        7. Check Bluetooth.<\/li>\n<\/ol>\n

          If USB and Bluetooth work, but the M indicator does not enter pairing mode at all when using Fn + 4<\/strong>, do not randomly install firmware for another K688. In this situation, it is better to preserve the working connection modes and consider a fault or loss of connection with the original receiver separately.<\/p>\n

          How to connect Bluetooth<\/h2>\n

          K688GB-RGB-PRO can save three Bluetooth devices.<\/p>\n\n\n\n\n\n\n
          Profile<\/th>\nKey combination<\/th>\nIndicator during pairing<\/th>\n<\/tr>\n
          Bluetooth 1<\/td>\nFn + 1<\/strong><\/td>\nBlue<\/td>\n<\/tr>\n
          Bluetooth 2<\/td>\nFn + 2<\/strong><\/td>\nRed<\/td>\n<\/tr>\n
          Bluetooth 3<\/td>\nFn + 3<\/strong><\/td>\nGreen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          For initial pairing:<\/p>\n

            \n
          1. Move the switch to BT<\/strong>.<\/li>\n
          2. Select one of the profiles.<\/li>\n
          3. Hold the corresponding combination Fn + 1<\/strong>, Fn + 2<\/strong>, or Fn + 3<\/strong> for about 3 seconds.<\/li>\n
          4. Open Bluetooth settings on the computer.<\/li>\n
          5. Find the keyboard in the list of available devices.<\/li>\n
          6. Select it and complete pairing.<\/li>\n<\/ol>\n

            In the Bluetooth list, the device may appear as BT3.0 Keyboard<\/strong> or BT5.0 Keyboard<\/strong>.<\/p>\n

            How to switch between Bluetooth devices<\/h2>\n

            If the devices have already been paired, briefly press the corresponding combination:<\/p>\n\n\n\n\n\n\n
            Key combination<\/th>\nAction<\/th>\n<\/tr>\n
            Fn + 1<\/strong><\/td>\nSwitch to Bluetooth 1<\/td>\n<\/tr>\n
            Fn + 2<\/strong><\/td>\nSwitch to Bluetooth 2<\/td>\n<\/tr>\n
            Fn + 3<\/strong><\/td>\nSwitch to Bluetooth 3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            Bluetooth works, but the Redragon program does not detect the keyboard<\/h2>\n

            This is not necessarily a malfunction.<\/p>\n

            The proprietary Redragon software is intended for device configuration via wired connection or 2.4 GHz. Bluetooth is not used for the configuration program.<\/p>\n

            If the keyboard works normally via Bluetooth but the program reports that the device was not found:<\/p>\n

              \n
            1. Close Redragon Software.<\/li>\n
            2. Switch to USB-C or 2.4 GHz.<\/li>\n
            3. Wait a few seconds.<\/li>\n
            4. Test normal text input.<\/li>\n
            5. Launch the program again.<\/li>\n<\/ol>\n

              Do not remove a working Bluetooth driver just because the Redragon program does not detect the keyboard in Bluetooth mode.<\/strong><\/p>\n

              Official Redragon K688GB-RGB-PRO software<\/h2>\n

              This model uses program version 2.0<\/strong>.<\/p>\n

              Two file names appear in official Redragon sections:<\/p>\n

              Redragon_K688-RGB-PRO_Setup_v2.0_20240715.exe<\/code><\/p>\n

              and:<\/p>\n

              Redragon_K688-RGB-PRO_Software.exe<\/code><\/p>\n

              Verification showed that these two files are completely identical. They are the same official program build.<\/p>\n

              The date in the full installer name is 15.07.2024<\/strong>.<\/p>\n

              If the official page downloads the shorter file name Redragon_K688-RGB-PRO_Software.exe<\/code>, there is no need to separately look for the older long file name.<\/strong> The verified files are identical.<\/div>\n

              Where to download the program<\/h2>\n

              Use the official Redragon catalog:<\/p>\n

              Redragon software<\/a><\/p>\n

              In the list, select specifically Redragon K688GB-RGB-PRO Gaming Keyboard<\/strong>.<\/p>\n

              Do not select K688SP-RGB-PRO or another similar model.<\/p>\n

              What the program is used for<\/h2>\n

              Officially supported K688GB-RGB-PRO features include:<\/p>\n

                \n
              • Macro Editor for creating macros;<\/li>\n
              • Key Assignment for changing supported key assignments;<\/li>\n
              • additional RGB lighting settings;<\/li>\n
              • brightness and speed adjustment for supported effects;<\/li>\n
              • additional software lighting effects.<\/li>\n<\/ul>\n

                These functions are not required for normal text input.<\/p>\n

                Installing the program in Windows 11<\/h2>\n

                K688GB-RGB-PRO officially supports Windows 11.<\/p>\n

                  \n
                1. Connect the keyboard via USB-C or 2.4 GHz.<\/li>\n
                2. Check that normal input works without Redragon Software.<\/li>\n
                3. Download the program for K688GB-RGB-PRO from the official website.<\/li>\n
                4. Close Redragon programs for other keyboards.<\/li>\n
                5. Run the official EXE file.<\/li>\n
                6. If Windows asks for permission to make changes, check the file name and model again.<\/li>\n
                7. Follow the installer steps.<\/li>\n
                8. After installation, leave the keyboard connected via USB or 2.4 GHz.<\/li>\n
                9. Launch the program.<\/li>\n
                10. Check whether the keyboard is detected.<\/li>\n<\/ol>\n

                  Installing the program in Windows 10<\/h2>\n
                    \n
                  1. Connect K688GB-RGB-PRO via USB-C or 2.4 GHz.<\/li>\n
                  2. Wait for Windows to detect the device.<\/li>\n
                  3. Test text input.<\/li>\n
                  4. Download the official version 2.0 installer.<\/li>\n
                  5. Close configuration programs for other Redragon devices.<\/li>\n
                  6. Run the EXE file.<\/li>\n
                  7. Complete the installation.<\/li>\n
                  8. Launch Redragon Software while the keyboard is connected.<\/li>\n<\/ol>\n

                    Windows shows a warning when launching the EXE file<\/h2>\n

                    The verified installer may not appear in Windows as a program with a standard digital signature from a verified publisher. Therefore, Microsoft Defender SmartScreen or another Windows protection feature may display an additional warning.<\/p>\n

                    Do not disable Microsoft Defender, SmartScreen, or antivirus protection just to install the program.<\/strong><\/p>\n

                    Instead:<\/p>\n

                      \n
                    1. check that the file was downloaded from the official Redragon website;<\/li>\n
                    2. check the K688GB-RGB-PRO designation;<\/li>\n
                    3. do not run installers from unknown websites;<\/li>\n
                    4. do not install software for another K688 model to bypass the warning.<\/li>\n<\/ol>\n

                      The program shows Device not detected<\/h2>\n

                      If the keyboard works but the Redragon program does not detect it:<\/p>\n

                        \n
                      1. If Bluetooth is being used, switch to USB-C or 2.4 GHz.<\/li>\n
                      2. Close the program.<\/li>\n
                      3. Wait for Windows to detect the keyboard in the new mode.<\/li>\n
                      4. Test normal text input.<\/li>\n
                      5. Launch the program again.<\/li>\n<\/ol>\n

                        If the problem persists:<\/p>\n

                          \n
                        1. Connect the keyboard directly to the computer with the cable.<\/li>\n
                        2. Do not use a USB hub or docking station.<\/li>\n
                        3. Close Redragon programs for other devices.<\/li>\n
                        4. Check that the package for K688GB-RGB-PRO is installed, not K688SP or another K688 model.<\/li>\n
                        5. Restart Redragon Software.<\/li>\n<\/ol>\n

                          If the program stopped working after installing other Redragon software<\/h2>\n

                          Users sometimes try installing software for other K688 variants or similar keyboards when they cannot immediately find the correct software.<\/p>\n

                          This is not recommended for K688GB-RGB-PRO.<\/p>\n

                          If the wrong program has already been installed:<\/p>\n

                          Windows 11<\/h3>\n
                            \n
                          1. Open Settings \u2192 Apps \u2192 Installed apps<\/strong>.<\/li>\n
                          2. Find the incorrect Redragon program.<\/li>\n
                          3. Click the three-dot button.<\/li>\n
                          4. Select Uninstall<\/strong>.<\/li>\n
                          5. Restart the computer.<\/li>\n
                          6. Connect K688GB-RGB-PRO via USB.<\/li>\n
                          7. Check normal keyboard operation.<\/li>\n
                          8. Install the correct version 2.0 program.<\/li>\n<\/ol>\n

                            Windows 10<\/h3>\n
                              \n
                            1. Open Settings \u2192 Apps \u2192 Apps & features<\/strong>.<\/li>\n
                            2. Find the incorrect Redragon program.<\/li>\n
                            3. Select it and click Uninstall<\/strong>.<\/li>\n
                            4. Restart the computer.<\/li>\n
                            5. Install the official K688GB-RGB-PRO package.<\/li>\n<\/ol>\n

                              Do not install firmware for another K688<\/h2>\n
                              Especially important:<\/strong> if 2.4 GHz mode or Bluetooth stops working, do not install firmware for another revision or another K688 model just to experiment.<\/div>\n

                              Firmware interacts with the device at a lower level than ordinary configuration software. An incompatible version may cause loss of some functions or incorrect keyboard detection.<\/p>\n

                              First use:<\/p>\n

                                \n
                              • the correct connection mode;<\/li>\n
                              • official pairing using Fn + 4;<\/li>\n
                              • factory reset;<\/li>\n
                              • USB testing;<\/li>\n
                              • the official K688GB-RGB-PRO program.<\/li>\n<\/ul>\n

                                How to restore factory settings<\/h2>\n

                                K688GB-RGB-PRO supports a hardware reset.<\/p>\n\n\n\n\n
                                Key combination<\/th>\nAction<\/th>\n<\/tr>\n
                                Fn + Esc<\/strong>, hold for about 3 seconds<\/td>\nRestore the keyboard to factory settings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                A reset is useful to try if incorrect key assignments, unusual lighting behavior, or other software-related problems appear after changing settings.<\/p>\n

                                Resetting the settings and installing firmware are different actions.<\/strong> For normal recovery, use Fn + Esc first.<\/p>\n

                                Controlling RGB without the program<\/h2>\n

                                The main lighting settings can be changed directly from the keyboard.<\/p>\n\n\n\n\n\n\n\n\n
                                Key combination<\/th>\nFunction<\/th>\n<\/tr>\n
                                Fn + Ins<\/strong><\/td>\nSwitch between 16 lighting effects.<\/td>\n<\/tr>\n
                                Fn + \u2190 \/ \u2192<\/strong><\/td>\nChange the speed of the lighting effect.<\/td>\n<\/tr>\n
                                Fn + \u2191 \/ \u2193<\/strong><\/td>\nChange the lighting brightness.<\/td>\n<\/tr>\n
                                Fn + PgUp<\/strong><\/td>\nChange the color for supported effects.<\/td>\n<\/tr>\n
                                Fn + \u043f\u0440\u043e\u0431\u0435\u043b<\/strong><\/td>\nTurn the lighting on or off.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                Therefore, installing Redragon Software is not required to use the main RGB effects.<\/p>\n

                                Custom RGB lighting<\/h2>\n

                                K688GB-RGB-PRO has a mode for configuring the lighting manually.<\/p>\n\n\n\n\n\n\n\n
                                Stage<\/th>\nAction<\/th>\n<\/tr>\n
                                Enter DIY mode<\/td>\nPress Fn + Backspace<\/strong>.<\/td>\n<\/tr>\n
                                Start recording<\/td>\nPress Fn + Backspace<\/strong> again.<\/td>\n<\/tr>\n
                                Configure keys<\/td>\nSelect the required keys and available colors.<\/td>\n<\/tr>\n
                                Save<\/td>\nAfter finishing, press Fn + Backspace<\/strong> again.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                Knob controls<\/h2>\n

                                K688GB-RGB-PRO has a multifunction knob.<\/p>\n\n\n\n\n\n\n\n
                                Action<\/th>\nFunction<\/th>\n<\/tr>\n
                                Turn clockwise<\/td>\nIncrease volume.<\/td>\n<\/tr>\n
                                Turn counterclockwise<\/td>\nDecrease volume.<\/td>\n<\/tr>\n
                                Press the knob<\/td>\nMute or unmute sound.<\/td>\n<\/tr>\n
                                Fn + \u0440\u0435\u0433\u0443\u043b\u044f\u0442\u043e\u0440<\/strong><\/td>\nSwitch to lighting control.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                How to check the battery level<\/h2>\n\n\n\n\n
                                Key combination<\/th>\nFunction<\/th>\n<\/tr>\n
                                Fn + Del<\/strong><\/td>\nDisplay the battery level.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                When the battery level becomes low, the lighting may turn off and the indicator begins signaling that charging is required.<\/p>\n

                                To charge the keyboard, connect it with a USB-C cable.<\/p>\n

                                The battery drains quickly or the charge percentage changes suddenly<\/h2>\n

                                K688 users sometimes report rapid changes in the displayed battery level, especially when RGB lighting is enabled. There are also reports where the reading changes noticeably after restarting the keyboard.<\/p>\n

                                This may be related either to actual battery consumption or to inaccurate battery-level reporting.<\/p>\n

                                To check:<\/p>\n

                                  \n
                                1. Fully charge the keyboard via USB-C.<\/li>\n
                                2. Check the level using Fn + Del<\/strong>.<\/li>\n
                                3. Temporarily turn off RGB lighting.<\/li>\n
                                4. Use the keyboard in one wireless mode and observe its behavior.<\/li>\n
                                5. Restart the keyboard and check the indicator again.<\/li>\n
                                6. Try another USB cable and another charging port.<\/li>\n<\/ol>\n

                                  RGB significantly increases power consumption, so battery life with the lighting enabled is substantially shorter.<\/p>\n

                                  If a new keyboard quickly drops to 0\u20131% and does not hold a charge, do not disassemble it immediately.<\/strong> First rule out the cable and USB port, fully charge the device, and check the warranty. Disassembling a new keyboard may complicate warranty service.<\/div>\n

                                  The keyboard turns off the lighting by itself<\/h2>\n

                                  This is not necessarily a malfunction.<\/p>\n

                                  Power saving is provided in wireless mode:<\/p>\n