I've had my iPhone 4S for almost a year now, but it's not charging anymore. I've tried many different cords and outlets- nothing! I keep it plugged in, and it only makes the sound that its charging- over and over again. Why won't it work?!
Clean iPhone charging port with clean dry toothbrush. See if better. If not, clean charging port again with toothbrush and small amount of Isopropyl Alcohol. If still problem, make Genius reservation or arrangements for service and take or send the iPhone, wall charger and cable to Apple for resolution under the 1 year Warranty.