Ok, so I must have dropped my phone or something because I can now hear a rattling noise whenever I shake my phone... I didn't know what it was at first, I searched online and read that it might be the accelerometer, but it turns out that my phone doesn't vibrate anymore. It now just makes a very low noise like its trying to vibrate but just can't... What can I do to fix it? Its not under warranty anymore, and I don't mind opening it up if someone can tell me how. thanks in advance!