After dropping my iphone 5c my screen is black and has no sound.

I would really like some tips, I have tryed eversingle restart and tips I have found on the internet. But nothing seem to fix my phone. I have been in the app store and got no help what so ever. Did only cost me a bill, and no problem was fixed. So this is my last hope.

After losing the phone on the fool, it wont make any sound but my pc stil can find the phone if I conect it to my pc. But the screen remains black, and the sound is gone.

Anyone that can help me.

My english is bad