I also have the same problem. This is my second LG K20 Plus phone and the screens on both broke with on a month of my purchasing them. The first time it slid off my bedside nightstand and shattered when it hit the floor (a drop of about 2.5 feet) and the second I simply had the phone in my pocket with nothing else in the pocket yet the pressure from my leg was enough to crack the screen. My honest guess is the plastic body of the phone is too thin and so the phone body flexes cracking the screen. This is simply a poorly designed phone. Avoid it.