Recently my iPhone 4 stopped letting me charge it. Using the cord and power adaptor it came with, it will not charge. It says charging is not supported with this accessory. I found it strange since it is the original iPhone cords and charger. So I thought maybe my cord is bad. I had a griffin cord and power adaptor, but the same message occured. I tried plugging it into my computers and different usb slots. Still the same message. But it does recognize my iphone and Itunes lets me sync and add stuff to my iPhone. I tried my friends iPhone cords and stlil the same result. I made sure no lint or anything was in the connector area, I've even erased everything from my iPhone. Still the same message occurs. Any thoughts on why my iPhone is recognized by my computer but will not let me charge it? Thanks