So, my iphone died the other day. What happened was it went dead while I was at work and when I went to plug it up at home, the charging symbol did not come on. All I got was a blank screen I went to my brothers house to restore it and nothing but a white screen for a few seconds and then right back to black... itunes didnt even recognize my phone and I got the error 21 after trying for 2 hours to restore it. I need some help soon, thanks!!