Where is the sensor that turns off screen holding to ear on calls/brightnes

Question

I bought a cheap molded rubber case that covers the back of iPhone and the upper and lower parts on the front. It affects the light sensor and the phone screen doesnt go dark when I hold to my face and it doesnt allow the brightness sensor to work properly. I want to get a different case that doesnt mess with the sensor, do you know where its at exactly?
TIA

Answer 1

Rubber case that covers the light sensors? Solution: Xacto knife and very careful cutting skills.
If you can't see these two sensors behind the glass above the earpiece, get a very bright flashlight and shine directly above the earpiece, trying different angles. You should see a very small dot just above the center of the earpiece, with an elongated sensor just to the right of that. It's behind the glass which appears to be smoked in that area.
Wonder if the various case manufacturers didn't have access to this tibdit of information prior to the launch of the iPhone. It certainly seems like an important detail to note when designing a case.
For the record, I am using only an Incase belt clip holster - and keep the phone "naked" for regular use. Easier to use in the dock that way, and a couple quick swipes on my jeans every so often keeps the glass clean enough.
As someone noted elsewhere in this forum, the light sensor checks the ambient light to set the proper brightness only after the the phone is unlocked each time. However, if you go to the Voicemail screen, it appears that the sensors become fully active at that point, and you don't need to be on a call to see the effect of covering those sensors or shining a bright flashlight at them. Give it a try.