So last night, i dropped my phone for the very first time, maybe like 6 feet on tile,making the back come off and the battery come out but after I put it back in it worked fine the rest of the night, but this morning the screen started to flash, like, every 3 seconds the screen flashes dark grey making it super annoying to do anything! I've already tried restarting it and taking the battery out and putting it back in, but its still doing it. Is there anything I can do to make it stop?