Hey!
You know how the g2 locks the screen when u are in the middle of a call, so u wouldn't accidentally push a button with your cheeck/ear? Well sometimes (and quite often too) it stops locking, probably thinking that I moved the phone away from my face.. and the it relocks it the next second.. well most of the times it unlocks, I push the mute button or I hang up alltogether.... its getting rlly frustrating, and I was wondering if anyone is having the same problem..
Sent from my T-Mobile G2 using XDA App
Are you outside or in bright light when this is happening?
The proximity sensor (the thing that controls this function) is in the upper left hand corner of the phone, above the display area. Basically if light hits it, on comes the screen. No light, no screen. Put your phone on a desk/table and make a call to voice mail or something, and then move your finger over the proximity sensor. Then move it away... You should be able to make the screen go on & off by passing your finger over the sensor. If this does not work, then perhaps your sensor is bad.
Some have had problems when making calls outside, because the light gets in between their face and the phone, hits the sensor, activating the screen.
Steve Jobs would tell you to hold the phone in your left hand. (It works better that way.)
Thanks! That's helpful.. I tried the finger test and it seems to work fine... when I'm holding the phone next to my ear with the sensor TOUCHING my ear, ii flickers on and off =S
Sent from my T-Mobile G2 using XDA App
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While im in a call on my G2 randomly the call will end or it will get muted or it will go on speaker phone. It seems like there is a proximity sensor or a light sensor in the upper left of the phone and randomly it freaks out mid call and turns on the screen and my cheek hits some of the touch buttons. It is very annoying. Randomly ill be in a conversation with my girlfriend and it will hang up -_-. maybe when we get root access or more api access to that sensor we can turn it down or something like that. Anyone else having a similar problem?
ChaosXIII said:
While im in a call on my G2 randomly the call will end or it will get muted or it will go on speaker phone. It seems like there is a proximity sensor or a light sensor in the upper left of the phone and randomly it freaks out mid call and turns on the screen and my cheek hits some of the touch buttons. It is very annoying. Randomly ill be in a conversation with my girlfriend and it will hang up -_-. maybe when we get root access or more api access to that sensor we can turn it down or something like that. Anyone else having a similar problem?
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This is a common problem with smartphones that use proximity sensors. Whether or not you get this problem depends on how you hold your phone to your head and possibly whether you have long hair (there is some argument about that). Some phones also do have more problems than others, suggesting it might be related to programming of the proximity sensitivity/hysteresis.
I see. I actually do have long hair... that could be a factor. My hair could be moving across it or moving and it could be triggering the sensor. Maybe once we get root access we can see if there is a way to disable the sensor altogether for calls. I like the auto back light feature but so far in calls it is very annoying. Shouldn't be too hard i think.
One thing I like to do is cover the top part where the sensor is first with my ear / side of my head then place the rest of the phone on the side if my face. So angling it basically, whole process takes about 2 secs. Hope this helps.
fRom Snugs G2 ^.^
I have the same problem too, its annoying. What I do is that I try to keep the sensor area (top left of the phone) as close as possible to my case, also as covered as possible. Kepp the bottom half of the face a little bit away from the face (cheek). - this way you wont set off any on screen buttons if light does get through the sensor.
what feature is this? when i put the phone near my face the screen goes blank and when i move it away from my face the menu lights up, pretty cool. anyone know how it works?
Not sure of the technical aspects, but I've heard it has a sensor - much like a car has headlight sensor. When it gets dark, the headlights go on, when it's daylight, headlights shut off. Phone is the opposite, dark to your face - light off, pulled away from face, lights up. I agree, cool feature - helps to conserve battery a little bit too.
It's a proximity sensor. The screen turns off so that it doesn't accidently register the screen touching your face as a touch input (aka your face touches the 'end call' button while in the middle of talking).
Lol all phones have done this using a proximity sensor for about 4 years now;-). It's nice though! Otherwise your cheek would press all kinds of buttons during a phone call, likely the end button as one of them.
These have been around for about six years now on mobiles.
Yes, this is nothing new on phones. If you're interested, look very closely at the phone's front, to the left of the speaker as you look at it. Opposite side of the camera lens. You may have to tilt it a bit, and bright light will help. You'll see two very small transluscent spots. One is the light sensor, the other is the proximity sensor.
Well, I've searched the forums for this phone and I haven't found anyone with this issue.
When I make or receive calls, the proximity sensor either doesn't turn off the screen or, more often, it does but turns it back on after a while. This results in random keys being pressed making noise and, eventually, it presses the button to end the call or puts the call on hold and dials another number.
It's very, very annoying. Could it be something on the settings? Hope it's not hardware... Any sugestions on how to solve this?
I'm using Miui 1.9.9 with franco.kernel from 10 set.
The proximity sensor is located at the top left corner of the phone (next to the speaker) and flashes red while active. Make sure you cover this area with your head when speaking. I am left handed and sometimes the sensor doesn't detect anything because of the way I hold it, this could be the case with you also...
There are some apps that can help you test the sensor if it works or not.
Mine was stupid too with stock rom, but with custom roms it works very good. detects even finger in 3cm range and turns on screen after 2 seconds.
wanted to know if im the only who is having this issue with phone calls. even without a case when i move the phone away from my ear it doesnt respond, i still get the black screen. i press the power button but the screen just flickers and doesnt do anything at times. is it the rom? my phone? i also faced it into the light and sometimes it comes on sometimes it doesnt.
figured it out.... went through 4 screen protectors and got the cut out right for the last one. seems the proximity sensor is blocked by the screen protector. almost listed my phone on ebay. haha
I keep disconnecting or putting people on mute whatever with my ear, is there a setting to turn the screen off during calls?
Sent from my SM-G975F using Tapatalk
Is this in the native dialer?
Your phone screen should automatically turn off when you put your phone to your ear.
Corv0 said:
Is this in the native dialer?
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Yes, screen doesn't turn off
Sent from my SM-G975F using Tapatalk
Davey Dual Sim said:
Yes, screen doesn't turn off
Sent from my SM-G975F using Tapatalk
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That's odd and wrong, the proximity sensor is about 0.5 cm left to the camera cutout, make sure you don't:
Have a dirty display
Use an invasive case
Use a badly applied screen protector, some glass ones can cause problems too
Cover only the left side of the screen with your ear
What software are you on?
S10+ out of the box with the Samsung screen protector , the Spiggen air case, the thinnest one on the market and stock Pie, using Nova
Sent from my SM-G975F using Tapatalk
I've had the same thing happen a couple of times. The prox sensor is too far to the edge of the phone so it doesn't always "see" my face when I hold it up to my ear. I had the same issue with LG G7.
It's happen to me as well but I don't really mind since I text more often than I do calling people ?
Davey Dual Sim said:
S10+ out of the box with the Samsung screen protector , the Spiggen air case, the thinnest one on the market and stock Pie, using Nova
Sent from my SM-G975F using Tapatalk
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Can you replicate the bug by playing a WhatsApp audio file(can be your own) and covering the top of your phone?
It's easy to replicate on a call. Hold the phone up to your left ear and just slightly rotate it away from your head. You'll see the screen come on. It all depends on how you hold phone while you're talking.
Corv0 said:
Can you replicate the bug by playing a WhatsApp audio file(can be your own) and covering the top of your phone?
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Yes, I've tested the proximity sensor and it works, so it's more about how I hold the phone it seems. I take a lot of calls whilst on the move and i pace about a lot whilst talking.
It seems the screen is going on and off and my ear is touching the screen before the sensor turns it off again.
For someone who makes 30 or 40 or so calls a day the problem is me and the fact I'm never sitting at a desk when doing so.
I need to work around this with an ear use routine lol
Sent from my SM-G975F using Tapatalk
proximitysensor
Davey Dual Sim said:
I keep disconnecting or putting people on mute whatever with my ear, is there a setting to turn the screen off during calls?
Sent from my SM-G975F using Tapatalk
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very old thread, but i suffer the same issue, even with all the updates. only when under lineageOS the proximity-sensor works just fine. bur lineage is no solution, unfortunately.
Did you ever manage to really solve this ?
best regards from switzerland
The issue of the Prox sensor is one as old as smartphones. My questions and advice usually go like this,
Do you have long hair that drapes over your ear? Hair that hangs in front of your ear is not always solid enough to be detected. Light can also bleed through and cause false signals allowing the screen to stay on. There are two ways to overcome this, press the phone tightly to your ear. This compacts the hair and blocks the light. Some don't like this because of the pressure. Pull your hair back before placing the phone to your ear.
Are you sure of the device placement? Everyone's ears are different and sometimes the sensor can miss the ear. Slight adjustments forward or back can land the sensor on a solid portion of the ear rather than a recessed area. Also holding the phone too high can be an issue as your ear is actually under the sensor. Figuring out ear placement becomes muscle memory and can change from device to device you just have to find the spot first then make an effort to hit a few times until it's natural.
Is your screen clean? Ironically a dirty screen can cause issues with these sensors as well. If the screen is dirty from makeup or natural oils in the skin the sensor may have a difficult time realizing there's a difference and not react. Just running your palm over the upper portion of the screen right before placing the device to your ear should be enough to clean the sensor and provide a contrast reference.
Most of you have tested your sensor but for those who haven't if you continue to have issues it is always possible that there is a defect in the sensor. If none of the above advice has worked it's a good idea to test both the Prox and light sensor. To test the light sensor, set your device to auto brightness and in a well lit area place your palm over the upper portion of the phone, the screen should dim. To test the prox sensor, place a call or have a friend call you and place your palm over the upper portion of the screen, the screen should go dark with no display.
If all of the advice fails and the phone also fails the sensor tests you may need to take the device in for service.
A temporary solution would also be to not hold the phone flush against your cheek while on calls. There are no controls at the top of the phone and muting or disconnecting comes from cheek contact. The mic on the device is very good. You'd actually find that you could sit the phone on the table and talk to someone in a normal voice and they would hear you just fine. You obviously wouldn't hear them as well if not on speakerphone, because speakerphone both boosts the volume and incorporates the second speaker. So even if you held the device a few inches or CM from your mouth the other person would still hear you just fine. This is another technic that requires a bit of practice but can become second nature with the added benefit of keeping your screen a little more smudge free.