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  1. Thread Author  Thread Author    #1  

    Default LG G2: Proximity sensor issues during phone calls

    I have the AT&T G2 and one thing that is making me a bit crazy is the proximity sensor.

    When I make a call and hold the phone to my ear (left), the screen does go off like it's supposed to, but 50% of the time if I move the phone even a little bit, the screen comes on and my ear triggers one of the on screen buttons so I'm constantly hearing the beeps of the keypad and I have to jam the phone closer to my ear and not move it to keep the screen from coming back on during a call. I don't find any setting for the proximity sensor on the AT&T model.

    Is this just something to live with or is there a way to adjust/fix things?
    Last edited by NotJustAPhone; 03-09-2014 at 11:46 AM.
  2. #2  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by OhAlfie View Post
    I have the AT&T G2 and one thing that is making me a bit crazy is the proximity sensor.

    When I make a call and hold the phone to my ear (left), the screen does go off like it's supposed to, but 50% of the time if I move the phone even a little bit, the screen comes on and my ear triggers one of the on screen buttons so I'm constantly hearing the beeps of the keypad and I have to jam the phone closer to my ear and not move it to keep the screen from coming back on during a call. I don't find any setting for the proximity sensor on the AT&T model.

    Is this just something to live with or is there a way to adjust/fix things?
    I am not sure if this will help, but you can recalibrate the Motion Sensor located at Settings>Gestures>Motion Sensor Calibration>Then it prompts you to recalibrate.
    It can't hurt to try it.
  3. #3  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Do you have a screen protector on your screen that is covering or partially covering the proximity sensor? These are notorious for causing issues like these. Also, make sure the proximity sensor area on your screen if free of any oils that may end up their from your ear. I've heard of phones having the same issue when makeup collects there.

    Lastly, this is hardware on our phone and can fail. You are most definitely within the one year warranty, your should be able to get it replaced if you can show the sensor is failing.

    Sent from my LG-LS980 using AC Forums mobile app
  4. #4  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Ditto. I had to trim my screen protector to expose the Proximity Sensor. It was acting very flaky when covered by the screen protector.
  5. Thread Author  Thread Author    #5  

    Default Re: LG G2: Proximity sensor issues during phone calls

    No screen protector, screen is always spotless.
  6. #6  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by OhAlfie View Post
    No screen protector, screen is always spotless.
    Give this a shot. It's called Sensor Kinetics. https://play.google.com/store/apps/d...sensorkinetics

    Start it up, scroll down to "Proximity Sensor", click the graph button on the right. Then click the start button, wait for the message to clear then hold your hand over the sensor, the take it away, and repeat.

    Here is what mine looks like, what does your look like?
    Attached Thumbnails Attached Thumbnails LG G2: Proximity sensor issues during phone calls-1394487812172.jpg  
  7. Thread Author  Thread Author    #7  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Looks almost identical to yours.
  8. #8  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by OhAlfie View Post
    Looks almost identical to yours.
    Have you tried the same thing (moving hand over the proximity sensor) while your phone is on a call?

    Sent from my LG-LS980 using AC Forums mobile app
  9. Thread Author  Thread Author    #9  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Nope
  10. #10  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by OhAlfie View Post
    I have the AT&T G2 and one thing that is making me a bit crazy is the proximity sensor.

    When I make a call and hold the phone to my ear (left), the screen does go off like it's supposed to, but 50% of the time if I move the phone even a little bit, the screen comes on and my ear triggers one of the on screen buttons so I'm constantly hearing the beeps of the keypad and I have to jam the phone closer to my ear and not move it to keep the screen from coming back on during a call. I don't find any setting for the proximity sensor on the AT&T model.

    Is this just something to live with or is there a way to adjust/fix things?
    Try shutting off the phone and then back on. Recalibrate the sensor like the 1st response suggested. Then turn the phone off and on again. I did this after the 4.4.2 update and it fixed my issue which was the same experience as yours.

    ಠ益ಠ
    ಠ益ಠ
  11. #11  

    Default Re: LG G2: Proximity sensor issues during phone calls

    I have the same issue, a sensor test shows me that sometimes proximity sensor doesn't work, and sometimes works properly... I tried to recalibrate the sensor as suggested but doesn't work. I also tried an hard reset... no again. Do you suggests something else? Can it be an hardware problem?
  12. #12  

    Default Re: LG G2: Proximity sensor issues during phone calls

    If you are rooted, check if your ROM enables you to lengthen the proximity sensor sensitivity property in build.props. I have had success using 500 milliseconds. So, when I'm in a call with the phone to my ear, 500 ms have to pass when the phone moves away from my ear before the proximity sensor times out and the display comes back on. NOTE: take extreme caution changing any property in build.props don't forget that you modified a property so that if any crashes, etc. happen subsequently you can restore the property to its default to solve any such issues. Reboot for the change to build.props to take effect. Definitely do a nandroid backup BEFORE changing any property in build.props then change the property, then reboot. Try it out!

    Sent from my LG-D800 using Tapatalk
  13. #13  

    Default Re: LG G2: Proximity sensor issues during phone calls

    I'm not very sure it is a param problem, sometimes the sensor works, and If default was not correct I would have read many other people with this issue.
    I have some problem also in gravity sensor (after a reboot it works again for a while)... I may try to downgrade from 4.4 to 4.2 but is this allowed by warranty? I need to root the phone to do this?
    I absolutelty don't want to loose warranty because if I don't solve this problem I will sent it to LG assistance.

    Thank you again.
  14. #14  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Hi there, i recently bought an LG G2 case from trident. and i keep hearin things that my screen protector is blocking the proximity sensor..can you tell me where it is? and i also heard if you cut the part out covering the proximity sensor . i can use the knock knock feature without any problems.
  15. #15  

    Default Re: LG G2: Proximity sensor issues during phone calls

    It is the little black oval sensor between the front camera and the speaker.

    LG G2: Proximity sensor issues during phone calls-g2-41.jpg
    (in this photo you can see very well the front camera, a little bottom there is the proxymity/bright sensor)
  16. #16  

    Default Re: LG G2: Proximity sensor issues during phone calls

    which one? the sensor on right of the camera? or the one left of the LED light?
  17. #17  

    Default Re: LG G2: Proximity sensor issues during phone calls

    LG G2: Proximity sensor issues during phone calls-g2-41.jpg
  18. #18  

    Default Re: LG G2: Proximity sensor issues during phone calls

    This video shows my issue about proximity sensor. The sensor works for few minutes after power on and also a restart or an hard reset doesn't solve it.

  19. #19  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Recently I had replaced a new display for a customer but after replacement, the light / proximity sensor didn't worked 100% anymore. Whenever I try to turn on the display , it turned off automatically. So I re-seated the light sensor couple of times, but it still didn't worked. So I had to order a new light / proximity sensor. For the time being, I just detached the light sensor so the phone can still work but it won't turn off automatically during calls. After replacing the sensor, it worked 100% again! I also get other values when I test it like in the video shown above. The light value I get is up to 125 and not 25. So my guess is maybe that sensor is also defect and not working 100%. This part is not too expensive and you could buy it for around 10USD and is a cheap fix...
  20. #20  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by Illustrator Joe View Post
    Try shutting off the phone and then back on. Recalibrate the sensor like the 1st response suggested. Then turn the phone off and on again. I did this after the 4.4.2 update and it fixed my issue which was the same experience as yours.

    ಠ益ಠ
    It seems working Joe, thank you!
    The problem was killing me
  21. #21  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by Halil Ulas View Post
    It seems working Joe, thank you!
    The problem was killing me
    Sorry, the same problem again. It did not
    completely work out
  22. #22  

    Default Re: LG G2: Proximity sensor issues during phone calls

    Quote Originally Posted by Halil Ulas View Post
    Sorry, the same problem again. It did not
    completely work out
    Yeah it eventually came back for me too. This isn't really a "fix" but I use the quickwindow case and LOVE IT. I just make sure the flap is shut when I am talking on the phone. But I forgot the other day and realized I had accidentally changed the time on my phone from 12-24 hour format :P
    ಠ益ಠ

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