Why won't my Literider collapse?

If the handle is not rotating when you press the switch, there may be some sand or dirt preventing full rotation. If it is rotating, but the stroller won't collapse, one of the pins might be damaged or shifted. Try removing the handle with a screwdriver and cleaning the sides. Examine the pins to make sure they are in the proper place. There should be part of the pin sticking out on both sides of the handle. If there is not, the pin can be pried back out with a screwdriver. Here is a link to the troubleshooting guide.