This might sound irresponsible but this happened to me today, right after I dropped my phone. Came here to find a solution but since most said the troubleshooting techniques didn't work I skipped those steps and decided to bang my phone against my desk instead and that did the trick XD Just be careful, don't put your whole body into it, just go for a fairly assertive bang or two and see if it works-- worth a shot imo just try not to break your screen lol
... View more
