My dell latitude 7390 had fallen and baseplate had been punctured. When I tried to pick it up or place it down screen would glitch, freeze and move the display. It would also go to a blue screen and give different error codes such as (KERNEL_SECURITY_CHECK_ERROR). It then stopped turning on and went to a ln error state saying that a start up file could not be opened. Now it is not turning on and the light is flashing 2 amber, 5 white. I have looked it up and it means Bios Checksum failure. How do I fix it?