Good evening, when the screen was broken by a fall? If so, note that at the falls, we see damaged externally are usually screens and casings, but inside the hardware can also damage without realizing at first sight. Anyway, you can stop by the store where bought the screen and try again, no need to disassemble the screen to test, remove the connectors and test provisionally as well. You'll tell us your progress. Regards. Sent from my iPhone Tapatalk