After power on, press the key three times in a row to enter the parameter settings, enter the parameter settings to adjust to p07. p07 below the value of 100 is not speed limit, then press and hold the key, the value below the flashing can start to adjust the value below. If you want to adjust the speed limit, then adjust the value downward. If you want to adjust the maximum speed, then adjust the value upward, after adjusting the long press to exit the adjustment parameters page, wait for about 5 seconds, will automatically jump to the main page, and then successfully save the settings.
