Update backlight brightness: 60%
Update backlight brightness: 90%
Update backlight brightness: 100%
Update backlight brightness: 100%
Update backlight brightness: 70%
Update backlight brightness: 40%
Update backlight brightness: 10%
Update backlight brightness: 0%
Update backlight brightness: 0%
Update backlight brightness: 30%
Update backlight brightness: 60%
