ok well I am having a very bad crysis. My speakers dont work I have tryed everything like plugging in headphones and unplugging them and then I restored my phone and it all worked now its an hr later and not working!!
You might have a clog of dust stuck in the headphone jack. Take a q-tip, wet it SLIGHTLY (don't soak it) you don't want to set off the sensor, and slowly clean it out. Try it after, if it doesn't work still, your going to have to bring it back to apple.