I need to take my phone in because part of the sensor inside the headphone jack seems to have chipped off, so when some headphone jacks are moved or twisted in a circle, the phone sometimes does not recognize that there are headphones plugged in. Well, today I went to look inside the headphone jack to look at the chipped part and noticed in the bottom center of the jack it looks like there is dirt or something. It is directly in the center. Now, I have to say, I have NEVER dropped this phone in water. The indicator under the 30 pin connector is still white (from what I can tell). Was the indicator tripped? Apple.com shows the sensor as being half of the headphone jack. This is like a dot in the very center of it.