Proximity Sensor failure after battery replacement

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HTC One M8

The second generation HTC One—dubbed the HTC One (M8)—features a dual flash and the new Sense 6 UI, and was released March 25, 2014.

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KC Baltz @kcbaltz

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Опубликовано: 21 фев 2017 г.

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Proximity Sensor failure after battery replacement

I just replaced the battery using instructions on this site and everything seems to be working except the Light/Proximity Sensor (the thing that turns the screen off when you hold the phone up to your face). Before I try tearing it down again, has anyone had any luck fixing this? I tried running the Light Sensor test (*#*#3424#*#*) and it registered a constant 4070 Lux. Not sure what that means. I'm wondering if one of the little cables that went to the upper left of the camera didn't get connected right.

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Constant LUX means it is not detecting the light difference on the light being shined on the ambient light sensor.

There should be a proximity sensor test there in the test menu.

Also for battery replacement taking out the daughter board should not be required anyway it's most likely a connection issue to the proximity sensor which is plugged into the daughter board.

Or it could just be glue blocking the proximity sensor near the plastic speaker mesh cover.

21 фев 2017 г. из Ben

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Constant LUX means it is not detecting the light difference on the light being shined on the ambient light sensor.

There should be a proximity sensor test there in the test menu.

Also for battery replacement taking out the daughter board should not be required anyway it's most likely a connection issue to the proximity sensor which is plugged into the daughter board.

Or it could just be glue blocking the proximity sensor near the plastic speaker mesh cover. — Ben

Scott @scott35006 Репутация: 10к 15 29 4 · Answer 1 · 2017-02-21T16:58:25-07:00

Scott @scott35006

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Опубликовано: 21 фев 2017 г.

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if it is reading a constant lux other than 0, it usually means it is disconnected. i would start by reopening the device, and making sure every flex is connected properly.

That being said, to an electronic device, disconnected, and not returning a signal are the same thing. a component the flex could very well have blown depending on ESD, shorts, or physical damage.

There is also a potential that there is just an obstruction in the lens of the sensor.

hope this helps

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HTC One M8

Proximity Sensor failure after battery replacement

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