the same thing happened to me. pretty much, all u can do is go to the place u bought it, and see if u can get it fixed, or to buy another one. the upside of buying a new one is if u ever need parts, like a headphone jack, etc., u get get it from the other one. i suggest getting one of ebay, if u can get a non-functional one with a working screen, it will be cheap and ull get a new screen.
hope this helped!