1. The keyboard switch is in OFF state, and the keyboard cable is unplugged
2. Open the R-shaped icon, WAVE75 wired firmware (take the optimized wired firmware as an example).

3. Press and hold the ESC key, insert the keyboard data cable, and a USB flash drive prompt will pop up in the lower right corner
4. Click the firmware page-START, and when the progress bar reaches 100%, it will display PASS, indicating that the installation is complete


5. Complete the installation of the keyboard's wired firmware, re-plug the data cable, and the keyboard will resume use.
1. Switch the keyboard to 2.4G mode and successfully connect to the computer.
2. Open the 2.4G firmware with the R icon and click the START button directly. The progress bar starts running until 100%, completing the installation


3. Complete the installation of keyboard 2.4 firmware. No additional operations are required and the keyboard is back in use.