[Q] light sensor does not work - Moto G Q&A, Help & Troubleshooting

Absolutely love my Moto G (coming from Lumia 520)
Problem is that when brightness is set to auto,it does not change at all. Outside or inside, there is no difference at all.
When set to "auto" brightnes goes to minimum regardless of situation.
I have downloaded an app called Sensor test, but i cant verify if sensor is working correctly.
I have searched this and other forums but it does not seem to be a very known problem. Anybody has/had the same issue?
*Update*
I have download an app called Android sensor Box and checked the Light Sensor module. It keeps showing 2.9 Luxes, no matter if it is dark or in bright sunlight.
Damaged hardware? anyone?

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[Q] Disable the Light sensor Galaxy s

My Galaxy S has a problem with the Light Sensor, every time i make a call my phone freezes or black screen, I tried running some sensor tests but also does same when i try the light sensor, so that must be it. have this problem for a year, at first i thought it was the proximity sensor.
When my headphone is plugged in, i dont have this problem because the light sensor wont interfear then.
I want to disable the startup of the light sensor,
I already setup ADB, so im ready to push and pull, but i don't know wich file i need to edit. remove a # here and there
Can anyone tell how wich file it is?
Got inspired by :
http://forum.xda-developers.com/archive/index.php/t-764368.html
Sure its not the proximity sensor? Cause I got the same problem. When I accept a call screen goes black, the upper bar is visible and after a while the screen turns off. Im ceratin that is a problem with the proximity sensor or not?
Same here, yeah think its the proximity, but my light sensor also doesn't function properly, auto brightness adjustment doesnt work also.
Very anoying problem.

[Q] light sensor doesn't work?

Hello everybody. Firstly I'd like to sorry but my English is poor. Ok, so what's going on? One day I saw that 4 touch buttons don't have backlight. So I tought it could be that light sensor. I've gone to the display settings and I set up auto brightness. And nothing has changed... No matter where I go, brightness doesn't change at auto. And this no backlight of 4 touch buttons... My question is: what it could be? What is wrong with my HTC? Could it be software issue or rather hardware?
the autobrightness setting your messing with is for the backlight of the screen, not the 4 buttons. as for the 4 buttons, what kernel and rom are you on? newer xe kernels have brightness setting for the buttons (if its bright outside itll turn off, if its dark then itll turn on). does the backlight of the 4 buttons never work or just sometimes?
I use stock 1.50~~ ROM with stock htc kernel. Sometimes (as now for example) 4 buttons backlight works, sometimes not, it's lottery... Now there is working also light sensor. I woke up today and it has been working, but since monday to yesterday it didn't work. Strange issue...
Try check tour sensors with androsensor from Market/Google Play.
It shows you whats sensors do work.
Light sensor is at the top left hand side of the phone at the front beside the speaker. Put your thumb over it and see if the buttons light up. If they do light sensor is working!
My sensors are still not working to all the time.
I did edit the build.prop with this line at the botten:
ro.mot.buttonlight.timeout=0
Reboot 2x
Wich helped .
But now its gone again,it drives me nuts
There is shortcut for light sensor check, for example on Samsung i9001 I can use *#*#0588#*#* - Proximity sensor test
hope this can help
addisuw said:
There is shortcut for light sensor check, for example on Samsung i9001 I can use *#*#0588#*#* - Proximity sensor test
hope this can help
Click to expand...
Click to collapse
And what should happen ?
Tried it,nothing.
Thanks tho.
Do you have it in a case? I put mine in a gel case and although it didn't appear to block the sensor I was finding that when I finished a call the screen didn't light up again. I trimmed the case so that it had much more clearance around the sensor and it works well now.
xynox93 said:
Hello everybody. Firstly I'd like to sorry but my English is poor. Ok, so what's going on? One day I saw that 4 touch buttons don't have backlight. So I tought it could be that light sensor. I've gone to the display settings and I set up auto brightness. And nothing has changed... No matter where I go, brightness doesn't change at auto. And this no backlight of 4 touch buttons... My question is: what it could be? What is wrong with my HTC? Could it be software issue or rather hardware?
Click to expand...
Click to collapse
Is your proximity sensor working during calls?
Not for me
(Ps.factory reset in total dark worked till reboot)
Did anyone figure this out?
I bought a used phone for a great price but my light sensor and proximity sensor dont work. Confirmed with androsense.
I would really like to just have the buttons light up all the time when the screen is on. Anyone know how to make that possible?

[Q] Light Sensor + Auto Brightness (sometimes) not working

I tried different roms (cm10.2, cm11, ls3.1, ...) all the same. Sometimes the light sensor seems not working. After reboots it may be found/activated or even not.
Yesterday i found the solution: If i reboot my Relay 4G in broad daylight or in the near of a lamp the light sensor (and therefore also the display auto brightness) works.
Maybe there is a test at bootup if sensor returns "0" the light sensor wont be activated? Anybody else have problems with auto brightness?
Regards
I have had similar experience when booting the phone in a dark environment. When the light gets bright it starts working again.

Proximity and light sensor stops working

Hi all, after updating to Android L (5.0 and 5.0.1) I've noticed that the ambient and proximity sensor will stop working after a certain amount of time. The time appears to be random at the moment. It started off with the adaptive brightness not working correctly, it would always be near max brightness in the dark and minimum in bright light, and at some points it would just stop changing altogether. So I decided to get lux autobrightness, it works better than adaptive brightness in L, but it would also stop adjusting itself after awhile.
Then I noticed that sometimes during a phone call, the phone's screen will not turn off so at the moment I decided to check the sensor's value with an app when the auto brightness/proximity wasn't working anymore. Turns out that the sensors are all registering 0 values or not changing it's readings despite being in different light conditions.
A reboot fixes this but, it's really annoying having to reboot the phone once a day.
Anyone else experiencing this?
EDIT: nvm, found out that other people are experiencing this as well. Haven't been on xda for awhile and forgot how to use the search button

Light Sensor No Longer Working

Recently my light sensor seems to have borked/disappeared. I like to tweak/modify my system but I've never had any problems before. I've used CF Lumen and Lux for a long time and all of a sudden they aren't working anymore. Lux says -1lx and the calibrate mode in CF Lumen says 0 lumens. I just put the phone back to stock from the the thread in the general section hoping that would fix any software issue. Does anyone else have any other ideas on what I can do to try to make it work/reset it? I also downloaded an app called Light Sensor that states that I don't have light sensor hardware.. Could there be a build prop tweak or something else that I can do that could reactivate it?

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