Iphone 4s black screen of dearth (no screen)

My new iPhone 4s had problem's of a screen turning black at a random moment. After using it for about 2 weeks it did get more worse every day. The only thing i could do is turning it on and of al the time (resetting). Now (after about 2 weeks i don't get any screen at al anymore) So i get a replacement f apple. If you have the same problem the best thing you can do is also loop for a new one cause its a hardware problem.