What are these other sensors for? - Galaxy S III Q&A, (US Carriers)

By the front facing camera there are two other holes/sensors what are these for? Sometimes at night I can see a faint red light from the far left sensor.
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Proximity sensor and ambient light sensor.

the proximity and light sensors i believe...

Oh okay thanks.
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Related

What's Under There/

So recently I was getting a close look at my vibrant. If you look about 1/4th of an inch to the left of the edge of the ear piece you will see two dots of what look like a front facing camera and an IR diode. So what are they?
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Peep holes for your landlord.
They are proximity sensors, so the screen can turn off when your phone is next to your face while on a call.
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[Q] spot on camera? dust?

has anyone gotten dust on their sensor? or have a camera break? I can't figure out which one it is..
so basically, I have a spot that appears on the screen using any camera app, and also appears on photos... example shot below:
as a sidenote, zooming causes it to disappear.. any fixes?
anyone?!? does noone have experience this??
Dude that's a UFO.
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Oh snap you spotted a cloud!
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I had a ton of dust in my front camera. Sent it in and moto fixed it.
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Camera

On my tablet, my front camera is very dark under a light. If there is no artificial light, it works fine. Does anyone know how to fix this?
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Capacitive buttons

How do I get them to light up? I can't find anything in the settings
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They should automatically light up.
They do sometimes but like right now there not? There off and on....
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shehade08 said:
They do sometimes but like right now there not? There off and on....
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Click to expand...
Click to collapse
If you're in a bright room or outside and it's sunny they won't light up. If you're in a dark room or outside and it's dark they should light up. If they are not then I recommend you reset your phone, if it's not ok after reset then you should return the phone and try another one.
Ok I'll keep an eye on it thank you for the help
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Welcome
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Cover your light sensor in the top left to test if the lights are working
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HTC is notorious for having poor performance of those lights on their phones. The Thunderbolt did the same thing, but since the sensor was on top of a black background, a good trick was to cover the sensor with electrical tape so the lights would stay on all the time.
They never seem to come on when they should and they always seem to be on when it's not needed. :silly:

Proximity sensor

What's the best way to check the proximity sensor ?
Wave over the device while it's asleep air preview uses the proximity sensor
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