LG Escape display


Android Question

I replaced the glass screen on my phone. The old screen had screws attaching it to the phone, They were stuck and wouldn't turn, eventually the head was stripped. I broke the connection off, and removed the screen. When I replaced the screen and plugged in the new screen and powered the phone up, I found that the bottom portion of the display is malfunctioning, the phone works but the screen has a continuous display flashing across the bottom and blocking out the function blocks (push bottons). How can I troubleshoot this to see what to fix next?