Develop Bugs

Proximity Sensor busted?

i just wanna ask if my proximity sensor is messed up, i dropped it a few weeks ago and it hit the top part(Screen) part of the phone because i was texting with the KB out, well anyways i made calls involving using the headset, well i noticed when i leave my phone sitting there the screen like blinks off and on every couple of seconds and theres nothing blocking the sensor, itll just do it randomly, the sensor still turns off the screen when i put it next to my face or when i put my hand over the screen, but my question is, after i dropped my phone and that even happened, is my sensor messed up?

sounds like you're right, the proximity sensor might be a little off whack depending on how hard you dropped the phone, I think that the sensor is soldered onto the phone, so it couldnt be a loose flex cable, but I am also not an expert on rhodium hardware, so i would suggest looking online at the rhodium hardware layout to see if you could possibly fix it

thesyntax said:
sounds like you're right, the proximity sensor might be a little off whack depending on how hard you dropped the phone, I think that the sensor is soldered onto the phone, so it couldnt be a loose flex cable, but I am also not an expert on rhodium hardware, so i would suggest looking online at the rhodium hardware layout to see if you could possibly fix it
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well i mean tbh, when i just make initial short call it doesnt happen, it only happens when i get into long calls, which is a bit odd, like i said the proximity still senses my face or hand when i block it........

that is quite strange, but you said that this has only started since you started the phone?

thesyntax said:
that is quite strange, but you said that this has only started since you started the phone?
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well i started noticing it after i dropped the phone, and it was bad timing because im always on hands free calling and long conversations but before i never really payed attention to it much cuz i didnt really use the phone for hands free calling....

[Q] Wife Claims Ghost Buttons During Calls

So whenever I talk to my wife she always ends up hitting buttons on the screen. (mute, speaker, etc) I told her that the screen should automatically turn off and that maybe something was wrong with her device. As soon as I got home I tested it and it worked just fine. I couldn't get it to happen, light sensor was very responsive.
Somehow she manages to hit buttons and I have no idea how. I covered up the light sensor and tried hitting every button/screen area and nothing happened.
Has anyone else experienced this before? Is there something I can settings/mods wise to help?

DanBergundy said:
So whenever I talk to my wife she always ends up hitting buttons on the screen. (mute, speaker, etc) I told her that the screen should automatically turn off and that maybe something was wrong with her device. As soon as I got home I tested it and it worked just fine. I couldn't get it to happen, light sensor was very responsive.
Somehow she manages to hit buttons and I have no idea how. I covered up the light sensor and tried hitting every button/screen area and nothing happened.
Has anyone else experienced this before? Is there something I can settings/mods wise to help?
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Click to collapse
Woman + X = No longer functioning properly

illogic6 said:
Woman + X = No longer functioning properly
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:X
Another funny thing is she said her boss at work has the same problem (female) and her husband has no issue.... Ha! I don't think they have Evos though.

my wife was having the same problem and we narrowed it down to her hair causing interference with the screen sensing that her face was against it. dont know if that makes sense but seemed logical to us and now that she tries to be aware of it and move her hair out of the way the problem doesnt seem to exist. hope this helps.

freaknjoe said:
my wife was having the same problem and we narrowed it down to her hair causing interference with the screen sensing that her face was against it. dont know if that makes sense but seemed logical to us and now that she tries to be aware of it and move her hair out of the way the problem doesnt seem to exist. hope this helps.
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Weird! Does the screen actually turn on then? I should watch the screen next time she makes a call on it.

yeah the screen was turning on while she was using it. i think whenever she would basically readjust the phone against her head it would happen if the hair would cause interference...again i'm not claiming this is some scientific answer but its what we found seemed to be causing issues for her

freaknjoe said:
yeah the screen was turning on while she was using it. i think whenever she would basically readjust the phone against her head it would happen if the hair would cause interference...again i'm not claiming this is some scientific answer but its what we found seemed to be causing issues for her
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I see, thanks.

My wife had the same issue...earrings.

Yep, Yep. My wife has the same issue but I've never had a problem. I'm going to show her this thread so that at least she knows it's not just her. lol.

Lappie2010 said:
My wife had the same issue...earrings.
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How would the earrings affect it?

I think it's actually the proximity sensor being highly in tune to how close it needs to be to the ear/face. It takes very little movement of the phone during a call to trigger the sensor and turn the screen back on. They probably don't even realize they're moving the phone as much as they are.

Crotchety said:
I think it's actually the proximity sensor being highly in tune to how close it needs to be to the ear/face. It takes very little movement of the phone during a call to trigger the sensor and turn the screen back on. They probably don't even realize they're moving the phone as much as they are.
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During a call, I pulled the phone away, moved it around, etc and watched for screen to come one. It did not come on easily. I don't get it.
I need to watch her during a call and test some things.

My sis has the same issues with the moment, and I tried it out and it was fine. She does seem to use it outside her hair and does have a lot of earrings. Though this is the Moment, it still runs android and has the sensors. I'll let her know and see if she'll enjoy her phone again lol.

ReFLeX135 said:
My sis has the same issues with the moment, and I tried it out and it was fine. She does seem to use it outside her hair and does have a lot of earrings. Though this is the Moment, it still runs android and has the sensors. I'll let her know and see if she'll enjoy her phone again lol.
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Still not sure what the issue/solution even is.

She picked up my phone last night and accidentally hung up on the person during the call! I didn't get a chance to see what happened...
She's starting to hate these phones. I need a solution.

Not a joke...but are these ladies blonds? At start of thread I was thinking hair color or earrings too. But earrings shouldn't impact the sensor as it is up top of phone and earrings would be down toward the screen.
But...if their hair was very light color...and they had phone only loosely pressed to head, I could 'guess' that the hair had enough light reflecting through it to set off the sensor.
Another thing to check on the earring side....what part of phone contacts first...do earrings hit the screen before head covers up the sensor?

My wife had dark brown hair :x

My wife too. Dark brown hair. With and without earrings. Swapped out one device, same problem. She even made it happen on mine.
I have seen it get in a mode where the proximity sensor seems to get reversed. Near head, screen on, away from head screen off. A button gets pushed at some point and then when the screen is on you can't un-mute, un-speaker, or answer a returned call from the one she just hung up on.
I think we are going to have to get her a different phone

I have the same issue but it only seems to come up with AOSP ROM's (Cyanogen & UD)
If I call Sprint and hit the prompts followed by putting the phone to my ear it presses other numbers. I think there is a delay in the proximity sensor that's causing this. I don't have long hair and my face is clean shaved so it's not that.
If I go to show someone that when everything works perfect. It's like when you call tech support for Dell, Netgear, etc. It works when you're on the phone with them and when you get off it doesn't.

I've noticed this in the past. If you are talking on the phone and you cant it just a little bit away from your ear, towards your face, you can see the backlight come back on. Also, hair can carry a static charge. So if your ladies cant the phone and the screen turns on, their hair could trigger a button press.

Desire's screen turns off on dialing/call

Good day,
It seems this issue has been discussed widely and regularly but I couldn't find a solution that works and I hope you can assist.
My -rooted/Redux- Desire's screen goes off when calls are made regardless of whether it is close to face or not, in addition it doesn't come back on until the call is ended -or battery is replaced- and obviously this can only be done by the other party as my screen stays blank and unresponsive..
Any thought or help would be greatly appreciated..
Regards.

Do you use any kind of sticker or a case which is near to the sensor ?
I had similar experiance with a sticker before. for 6 months it didn't cause any problem but after 6 months it caused some with problems with light and proximity sensor.

Harnec said:
Do you use any kind of sticker or a case which is near to the sensor ?
I had similar experiance with a sticker before. for 6 months it didn't cause any problem but after 6 months it caused some with problems with light and proximity sensor.
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Hi,
No, nothing at all.
Thanks.

I had this problem so i flashed a different ROM and it stopped doing it, sorry im not very technical but it worked for me, try it

AntAust1513 said:
I had this problem so i flashed a different ROM and it stopped doing it, sorry im not very technical but it worked for me, try it
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Ant,
Thanks but this is my third ROM, didn't help, any other thoughts?
Sent from my Desire HD using XDA App

Maybe the proximity sensor is knackered. Could be your phone that needs repairing. On the other hand you should be able to turn the sensor off if its getting too annoying by going into settings calls or display can't remember precisely buy there should be an option there to turn it off. Hope it helps.
Sent from my HTC Desire using XDA App

gmehtctilt said:
any other thoughts?
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There might actually be a dust particle under your digitizer, which caused the proximity sensor to malfunction
That's what my Desire has for a few months now.. Drived me crazy, until I started using CM7 which allows me to switch the screen on by pressing the power button during calls. But sometimes it still doesn't respond. Plugging in a powered USB cable is another solution then.
Anyhow, check if your proximity sensor is working by using Z-DeviceTest for example. If the sensor is indeed not working properly, there might be some dust on the sensor. Take off your backplate and blow around the power button area. Worked on my phone the first few times it occurred..
Hope this helps!

Knock On Not working properly

Hi, everyone. So I have an LG G4 for more than a year now and I am very pleased with its performance. I did have an issue with sometimes the audio is stuck after a call but I think it more has to do with bad reception as I noticed so its rare this days. However, lately something happened with the knock on feature which I cannot figure out at all. Sometimes it just doesn't work. I tap and nothing happens. The power on button is working perfectly but the knock on is unresponsive. I fiddled with the proximity sensor but it's not it. Sometimes it just stops working for 5-6 times and then it works and the again it doesn't. There is no pattern. When it's powering on the feature works with no hiccups but after that it's like the cpu forgets to monitor the process. I don't know. I have tried calibration and it works with no problem for a few minutes and then it goes back again to this stutter. Does anyone have any ideas about this? I am thinking factory reset but the hassle would be pointless if the problem persists and I am in no mood to install all those apps I have from the beginning for no reason. Any hep will be really appreciated. Thanks in advance.

I am experiencing the same issue but mine Knock on is a bit delaying.. for an example, I double tap on the screen and it gives response in 3-4 mins or not... I am suspecting from screen protector which has been mounted for almost a year, it could be corrupted(scratch) Give a try on removing the screen protector(if you have any)

It's a hardware problem. Many threads online about it
Sent from my LG-H811 using Tapatalk

Nailen said:
Hi, everyone. So I have an LG G4 for more than a year now and I am very pleased with its performance. I did have an issue with sometimes the audio is stuck after a call but I think it more has to do with bad reception as I noticed so its rare this days. However, lately something happened with the knock on feature which I cannot figure out at all. Sometimes it just doesn't work. I tap and nothing happens. The power on button is working perfectly but the knock on is unresponsive. I fiddled with the proximity sensor but it's not it. Sometimes it just stops working for 5-6 times and then it works and the again it doesn't. There is no pattern. When it's powering on the feature works with no hiccups but after that it's like the cpu forgets to monitor the process. I don't know. I have tried calibration and it works with no problem for a few minutes and then it goes back again to this stutter. Does anyone have any ideas about this? I am thinking factory reset but the hassle would be pointless if the problem persists and I am in no mood to install all those apps I have from the beginning for no reason. Any hep will be really appreciated. Thanks in advance.
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Is your case or temp glass protect over prox sensor. That can affect it bad. Also scratches on glass over prox sensor. If not. Then more than likely hardware related.

No the screen protector does not cover the prox sensor. It's cut out as it should be. I am starting to think it's a hardware problem. The thing is why now?!

Nailen said:
No the screen protector does not cover the prox sensor. It's cut out as it should be. I am starting to think it's a hardware problem. The thing is why now?!
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They are mostly sensors just like on a car. Sometimes it's just there time. Electrical components fail all the time. Are u rooted. Modified anything recently?

TheMadScientist420 said:
They are mostly sensors just like on a car. Sometimes it's just there time. Electrical components fail all the time. Are u rooted. Modified anything recently?
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No. I haven't touched it at all yet. I am pretty satisfied with the performance so I left it alone. The only thing worth mentioning is that I overheated taking a lot of pictures during an event. Maybe this did a number on it!

I have been discussing the issue with a technican today. It is a hardware issue, you cannot fix it. Apparently, the proximity sensor dies after ~2 years - at least somewhat. Why somewhat?
Check this out: You can check the status of your sensor using MINIOS, type *#546368#*815# (n.b. - swap 815 for your model number).
Now click device test - MT - ok - Individual Item - Sensor test - WAIT!
The proximity sensor will run a test and likely come up with a figure between 60~90. The actual value should be 220+.
Meaning: Your phone thinks it´s ~6-9 cm away from your face, that is not enough to trigger knock-on but it´s far enough to be triggered using the backside button.

My knock on doesn't work, but knock off does. Not a major issue, just annoying!

[COS13]Proximity sensor not working

i have a oneplus 8 pro that was running on OOS 11 like magic
then update it to COS 12 and the proximity sensor stopped working
yesterday COS 13 came and i thought it would fix the problem but no, the problem still there.
any fix for the proximity sensor one COS 13 please.

Mine is also not working at all since oos12. Im completely stock on oos13 now.
Sensor doesnt react at all.

Hi,
mine too stopped working a few days ago.
Im on OOS13 (eu) but it worked the hole time, suddently it stopped working, without any changes to the system.
I did a proximity sensor test (dialpad : #*899# ) and it does not react at all.
PS : Can anyone tell me where the sensor is located on the phone i cant find it.

riding the same boat

I tried to reset it with "Proximity Sensor Reset" app, but it didnt work so I think its a hardware problem...
Fortunately the hardware piece costs about 5-10 bucks, unfortunately phones today are so glued that I dont wanna hassle to open it just because of the little sensor..
Edit: I found out where the sensor is located somewhere in the right corner,
yesterday I coincidentally noticed that it sometime works when the top right corner comes in contact with my pants or any other fabric.
When I try it with my hands or head it doesn't react at all...

Deavy said:
I tried to reset it with "Proximity Sensor Reset" app, but it didnt work so I think its a hardware problem...
Fortunately the hardware piece costs about 5-10 bucks, unfortunately phones today are so glued that I dont wanna hassle to open it just because of the little sensor..
Edit: I found out where the sensor is located somewhere in the right corner,
yesterday I coincidentally noticed that it sometime works when the top right corner comes in contact with my pants or any other fabric.
When I try it with my hands or head it doesn't react at all...
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I was going to tell you that, I accidently discovered that proximity sensor is kind of working when in contact with my hoodie that is covering my ears.
but when phone is directly touching the skin it wont work.

Same here. I bought a used one in very good condition and figured out that the phone does not switch off the screen during calls. I can run the diagnostics and see that the sensor works properly when I use some fabric on it but has absolutely no effect when using the hand or the ear.
I wonder how that can be and if it's really an issue with the OS version or a hardware issue.

Also same here. Proximity sensor problems after oos13 update. Has anyone tried custom roms if problem are still occuring on those too?

i found the solution on yt

AidenDRJr said:
i found the solution on yt
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You are the best thanks a lot
Works 100% fine after new calibration.