31
Backlight setting: Press and hold and at the same time for 2 seconds to enter
the setting interface when the speed is zero. Press to switch to the backlight setting.
Parameters 1, 2, and 3, indicating the brightness of the backlight, 1 is the darkest, 2 is
the standard brightness, and 3 is the brightest. The default value of the meter is 3. Press
and hold to save the settings and return to the main interface.