In Step 10 what is the hole next to the Proximity SensorIt looks like there is a hole through the front part of the case in Step 10. Right above where the front camera and the earpi...
Answer to: In Step 10 what is the hole next to the Proximity SensorEnded up tearing the iphone apart and found that they have a new Proximity sensor design in the 4S. It takes up all the space that the proximity sensor and ambient light sensor used in the iphone 4. The Ambient Light sensor is now moved over and that is what uses the little round hole. Interestingly enough they actually painted the window on the white 4S.
Answer to: Status led in iPhone?Your "Dark LED" is the Proximity Sensor. It is shooting out IR which bounces back and hits a receiver which tells the phone when it is next to your face. That shuts off the screen so you dont inadvertently touch and trigger actions on the screen. Right next to it is an ambient light sensor that the phone uses to automatically control the brightness of the screen to preserve battery life. My question is just over from there there is another hole in the case with an unknown function. It can be barely seen from the front of a black 4S and is invisible due to being painted on a white iphone 4s. The round hole is plainly visible in the teardown and is not in any of the previous phones.