Hello Liz, You may have two problems. If your unit is several years old, the battery may need to be replaced. First charge the battery overnight. To get the screen unfrozen , you need to remove the screws on the back, open the case, and unplug the white battery connection . Reconnect the battery connection after a few seconds. If this works, it is usually a temporary fix . Either your battery does not hold a charge or your charger connection is poor at best and can not deliver a full charge to the battery. It could be both.
