A friend of mine dropped his iPhone and shattered his screen. We ordered a new screen and I've installed it. At first the phone would turn on, tell me there was no SIM card in it, and then give me the option to turn the phone off or to "cancel." Unfortunately, I didn't install something right and the touch controls wouldn't work even though the screen was on. Anyways, I believe I have fixed that problem, but now I can't test it because the battery is completely drained and when I try to turn it on it gives me the "need charging" symbol. When I plug the phone in nothing happens. It won't charge. Does anyone have any ideas of how to fix this, or what I should do?