Answer to: Why is my iPhone not charging?The phone will stop charging if the contacts become dirty or the cable port gets excessive lint in it. With an old clean soft bristle toothbrush, hold the iPhone so the cable port is facing down. Gently sweep the cable port out. blow out the port after with fast, hard breaths. Plug back in and Wa-La !! if that doesn't work, it may be the cable but I recommend the cleaning anyway.