So yesterday I had some trouble with my iPhone 4. The volume went away. I flipped mute and back and still didnt work until I plugged the headphones in and the problem went away. Right after that I realized that I wanted to plug in my iPhone on some philips dock speakers I use everyday and this message pops up saying "Accessory not supported by iPhone", except, I been using it everyday for the last two years. Ive reeboted and nothign seems to work. Anyone has this happened to them?