the pump lights up and allows settings, but the pump itself does not start The settings are poorly made and not intuitive. I searched for the ac/s phone number and couldn't find any. The instructions say contact us before returning, but there is no number or website. Can't find support anywhere! When I searched Google, there was a YouTube video but no company website. To update. Came out the next day, the button worked. ? However, I have lost confidence in the device. I inflated one tire and started inflating the second after inserting the Rhinodillo liners into the tires. The second weighed about 6 pounds when he died. I charged the device and finished inflating the tire. I doubt this device can fill a large motorcycle tire. Apparently there are identical device variants that have two plug types instead of one. I am changing my rating from one star to three stars. shopping harder than me.