Anyone that has any advice plz let me know. My iphone 4 just started vibrating about 15 mins ago and hasnt stopped since. It is unresponsive, i've tried holding down sleep button, holding down home button, and holding them both down at same time. I plugged it into my wall charger and no response. I plugged it into my laptop and neither itunes nor my computer recognizes it. It just all of a sudden is fried. It is vibrating as if I am getting a call but no buttons work on it, just a blank screen. I am phoneless once again, what to do?