iPhone won't charge after battery and dock replacement.

My iPhone 5c was having some major battery issues. I ordered a new battery and put it in. It worked fine, until I tried to charge it. My iPhone wouldn't charge or even vibrate. I've tried in the computer, the wall, different cords..I even tried putting in the old battery. It didn't even work when inserting the old battery. (Also my home button wasn't being recognized and my bottom speaker wasn't working.) I figured I had messed up something with the lightning port and that might be the issue. After replacing the dock connector with a new one, the iPhone still doesn't charge (or the home button doesn't work). I really need help with this one!