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I just got the phone last week and it’s always had a screen protector on it. I know many have issues with the proximity sensor covered but I don’t get how the phone should work. All my other phones turn off the display as you put the phone to your ear and on again if you move it away to look at something or end the call. The Nexus 6 just stays on until the screen time out and then I have to tap the power button to get the screen back.
I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within two inches or so and it jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?
Also, the Ambient display setting says it will turn on the display when you pick up the phone or get notifications. Never worked. ???
Bad phone, software or setting?
Thanks.
P.S. Why in God’s name are the volume buttons and to a lesser extent, the power button, dead center of the phone? I hit them every flipping time I pick it up. Is there a way to disable the volume buttons when the screen is off?
Tanquen said:
I just got the phone last week and it’s always had a screen protector on it. I know many have issues with it covered but I don’t get how the phone should work. All my other phones turn off the display as you put the phone to your ear and on again if you move it away to look at something or end the call. The Nexus 6 just stays on until the screen time out and then I have to tap the power button to get the screen back.
I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within inches or so and jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?
Also, the Ambient display setting says it will turn on the display when you pick up the phone or get notifications. Never worked. ???
Bad phone, software or setting?
Thanks.
Click to expand...
Click to collapse
my suggestion would be to take your screen protector off. when you pull away from thd phone, the screen should pop on, but it not doung that for you. over the past 8 months or so, ive been reading about this same issue. and its always fixed by raking off the screen protector. im fuessing that your screen protector is covering one of your sensors.
Understood but:
"I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within two inches or so and it jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?"
Can someone without a screen protector on chime in with naked sensor readings?
Tanquen said:
Understood but:
"I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within two inches or so and it jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?"
Can someone without a screen protector on chime in with naked sensor readings?
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Click to collapse
Readings the same.
Tanquen said:
Understood but:
"I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within two inches or so and it jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?"
Can someone without a screen protector on chime in with naked sensor readings?
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Click to collapse
your phone has its own proximity sensor thats being blocked by your screen protector, probably. im telling you that of the very many that have been reporting thus issue, have no more issue when they remove the screen protector. its worth a try, isnt it?
simms22 said:
your phone has its own proximity sensor thats being blocked by your screen protector, probably. im telling you that of the very many that have been reporting thus issue, have no more issue when they remove the screen protector. its worth a try, isnt it?
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Click to collapse
His screen is staying on tho. Usually with screen protector it stays off.
prdog1 said:
His screen is staying on tho. Usually with screen protector it stays off.
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Click to collapse
for most ppl it stays off, a few that ive read stay on non stop.
for example.. if it doesnt "see" your face get close, it wont turn off the screen.
simms22 said:
for most ppl it stays off, a few that ive read stay on non stop.
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Click to collapse
Kewl. He needs to make sure ambient display is on in display settings. Also the buttons are in middle of phone so you can reach them holding phone normally.
simms22 said:
... its worth a try, isnt it?
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Click to collapse
Yea, but the protector would not be usable afterwards and it was really hard to get it on clean and lined up and the sensor readings are the same. I thought the folks that had problems had stuck or sporadic readings.
simms22 said:
for most ppl it stays off, a few that ive read stay on non stop.
for example.. if it doesnt "see" your face get close, it wont turn off the screen.
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Click to collapse
Mine can be toggled on and off with the power button, never gets stuck. It just acts like the proximity sensor mode during a call never activates. It only powers off after the normal screen timeout if you are still on the phone. The sensor does see me and sets the value the zero.
prdog1 said:
Kewl. He needs to make sure ambient display is on in display settings. Also the buttons are in middle of phone so you can reach them holding phone normally.
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Click to collapse
It’s on, even tried toggling it.
The buttons should be higher. I understand you can’t reach the power button on larger phones if on top of the phone but putting the volume at the center of gravity is crazy. It’s actually noticeably difficult to hold the phone without it dipping when grabbing it lower and that’s after training myself to grab it lower. I still forget and grab it in the middle like any brick sized object. I'm old, hands weak.
I have read here, somewhere, that the proximity sensor does not have a variable output. It's either off or on, so to speak.
Larzzzz82 said:
I have read here, somewhere, that the proximity sensor does not have a variable output. It's either off or on, so to speak.
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Click to collapse
Probably yes but everyone who had a screen protector without a sensor cut out had to change it for one with a sensor cut out.
This is step 1. Even if this isn't the cause, it will cause problems later.
You say not variable. Sure on or off. That said, a protector can limit how close the "close" reference can be identified at.
Step 2 is a factory reset.
Unfortunately, can't troubleshooting without doing these steps.
Larzzzz82 said:
I have read here, somewhere, that the proximity sensor does not have a variable output. It's either off or on, so to speak.
Click to expand...
Click to collapse
That is my understanding also and someone posted above that they have the same readings from the sensor without a screen protector. They did not say but I’m assuming their phone works as it should when on a call. Again: "I installed a proximity sensor app (Proximity Sensor Finder) and it seems to work fine though I don’t know what the readings would be without the screen protector covering it. It shows 5.000305cm until my hand gets within two inches or so and it jumps to 0. The app says some sensors are discrete so seems ok and the readings are very consistent and fast. So why is the screen not turning off?"
danarama said:
Probably yes but everyone who had a screen protector without a sensor cut out had to change it for one with a sensor cut out.
This is step 1. Even if this isn't the cause, it will cause problems later.
You say not variable. Sure on or off. That said, a protector can limit how close the "close" reference can be identified at.
Step 2 is a factory reset.
Unfortunately, can't troubleshooting without doing these steps.
Click to expand...
Click to collapse
I know, I know. I’ve read that many have had issues with screen protectors but I thought the folks that checked saw that the proximity sensor readings were also bad. Mine seem to be just what the phone would want to see.
I will take it off at some point and I guess I’ll be the first to verify that even if you use an app to monitor the proximity sensor readings and they look normal the protector can still cause an issue or it is something else.
I did find that the Ambient display will not work without screen lock turned on.
Tanquen said:
I did find that the Ambient display will not work without screen lock turned on.
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Click to collapse
True, because it needs a lock screen to display it.
The screen worked as it should randomly the other day. Only on the one call. I pulled the phone away to look at something and it turned the screen on. Put it to my ear and what do you know, it turned the screen off. Not worked again so far and I ran the sensor app right after the call and it showed just what it always has, zero. Anything close to the phone you get a zero every time, right away. The phone app just ignores the zero reading.
Since I have only had my Mi 9 for less than a month, it should be impossible that it already has a Burn In...
However on the part of the screen where the fingerprint sensor sits, I noticed a grey-ish circle, which is exactly the size of the fingerprint. Since Burn In after 2 weeks should be impossible I turned the phone off and restarted it after a Minute and the spot was gone.
Now 2 hours later it is there again.
I don't even use the fingerprint sensor very often, only if I can't use face unlock...
Did anyone experience a similar problem?
(Btw, it's not software, I took a screenshot and it wasn't there)
Moischen said:
Since I have only had my Mi 9 for less than a month, it should be impossible that it already has a Burn In...
However on the part of the screen where the fingerprint sensor sits, I noticed a grey-ish circle, which is exactly the size of the fingerprint. Since Burn In after 2 weeks should be impossible I turned the phone off and restarted it after a Minute and the spot was gone.
Now 2 hours later it is there again.
I don't even use the fingerprint sensor very often, only if I can't use face unlock...
Did anyone experience a similar problem?
(Btw, it's not software, I took a screenshot and it wasn't there)
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Click to collapse
Well, that's interesting... Do follow this up to let us know what's up.
Before I got my Mi 9 yesterday, I clocked a full 4 years on my Note 4, and never experienced burn in... In fact, I would argue that the display looks the same today, as it looked the day I bought it. (no noticeable brightness drop)
i have experienced this on every "in display fingerprint" phone i've owned, and all it it is the optical sensor slightly visible with the screen off .
Moischen said:
Since I have only had my Mi 9 for less than a month, it should be impossible that it already has a Burn In...
However on the part of the screen where the fingerprint sensor sits, I noticed a grey-ish circle, which is exactly the size of the fingerprint. Since Burn In after 2 weeks should be impossible I turned the phone off and restarted it after a Minute and the spot was gone.
Now 2 hours later it is there again.
I don't even use the fingerprint sensor very often, only if I can't use face unlock...
Did anyone experience a similar problem?
(Btw, it's not software, I took a screenshot and it wasn't there)
Click to expand...
Click to collapse
Hey Man sorry for telling you so but this gray spot is the actual hole that your phone needs for the indisplay fingerprint scanner to work. You cannot notice it in all conditions. To test it go out in the sun max out the brightness and use a completely white photo.
P.s. there is another hole near your notch which is your proximity sensor
Serbinhio said:
Hey Man sorry for telling you so but this gray spot is the actual hole that your phone needs for the indisplay fingerprint scanner to work. You cannot notice it in all conditions. To test it go out in the sun max out the brightness and use a completely white photo.
P.s. there is another hole near your notch which is your proximity sensor
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Click to collapse
yes thats correct the circle is only to assist you with the position of fingerprint sensor, its the same in my huawei mate 20 Pro, cheers
I wish I knew all this before I sold my Mi 8 Pro for dirt cheap lol
My Mi 9 display is starting to burn in the fingerprint image after just 2 months of usage. I'm going to turn off the fingerprint unlock to prevent it getting worse.
Does this sound normal?
Doesn't sound normal but AMOLED displays are know for burn in marks. For that to happen you need to have the fingerprint image always on display. I got a MI9 and the finger print image dissapear after some time and reappear if I lift the phone so its almost impossible in a normal usage to burn in the display.
What kind of burn-in is it? Is it the icon, or is it from the strong light that lights up the fingerprint at scanning? The fingerprint icon must show at the same place all the time unlike the rest of the AOD. I can se how keeeping the icon on at the exact same place all the time 24/7 may hurt an AMOLED display. I turned off, both AOD and fingerprint icon, after a day or so to save battery. Now it shows only on the lockscreen for a few seconds.
gerhard_wa said:
What kind of burn-in is it? Is it the icon, or is it from the strong light that lights up the fingerprint at scanning? The fingerprint icon must show at the same place all the time unlike the rest of the AOD. I can se how keeeping the icon on at the exact same place all the time 24/7 may hurt an AMOLED display. I turned off, both AOD and fingerprint icon, after a day or so to save battery. Now it shows only on the lockscreen for a few seconds.
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So I had seen it as a sort of retention of the fingerprint image that appears on the lockscreen. I saw it when I was walking outside in full sun today. I quickly installed an app to check different colours full screen (dead pixel fix) and it clearly showed the burn in for several colours.
But now that I'm home, I tried again the screen check app and the burn in is gone!
So I wonder if it was either just temporary retention, or if I need to be outside in full sun to see the burn.
dvanders said:
So I had seen it as a sort of retention of the fingerprint image that appears on the lockscreen. I saw it when I was walking outside in full sun today. I quickly installed an app to check different colours full screen (dead pixel fix) and it clearly showed the burn in for several colours.
But now that I'm home, I tried again the screen check app and the burn in is gone!
So I wonder if it was either just temporary retention, or if I need to be outside in full sun to see the burn.
Click to expand...
Click to collapse
Please come back here and tell us if you see it again. It would be good to know if the display is this sensitive to permanent burn-in. Keeping the icon shut off at the AOD would probably be a good idea, I find it rather easy to hit the right spot after some time of practice in the blind.
That what you have seen on sun isnt burn in, that is normal see-through screen becase sensor is under display.
No need to panic, i seen it too but that is not a problem.
Same as marko378, it's totally normal to see this on bright daylight, it's not a bur in.
Its the finger print sensor and i see it at day one
No problem bro enjoy your phone
---------- Post added at 12:13 AM ---------- Previous post was at 12:05 AM ----------
Its the finger print sensor and i see it at day one
No problem bro enjoy your phone
Nice, today in full sun I confirmed what you're all saying. It's the sensor, the hole behind the screen, and it's only visible at certain angles in full sun.
Thanks to you all for helping
That's normal because the scanner is under the screen so it has to be a little transoarent there to work that's why In screen scanners are mainly used by oled displays. Enjoy the phone
dvanders said:
So I had seen it as a sort of retention of the fingerprint image that appears on the lockscreen. I saw it when I was walking outside in full sun today. I quickly installed an app to check different colours full screen (dead pixel fix) and it clearly showed the burn in for several colours.
But now that I'm home, I tried again the screen check app and the burn in is gone!
So I wonder if it was either just temporary retention, or if I need to be outside in full sun to see the burn.
Click to expand...
Click to collapse
It is not safe for the screen in my opinion to maintain the figerprint area always lighted. I use it as per default setting that dimly lights it when I take the phone and then in few seconds it disappeared even if I touch the screen. More than 1 year with the phone and no burning in the screen.
I am having an issue where always on display is staying ON while in pocket/faced down on the table. Feels like the proximity sensor is not working while on the AOD.
Plus, the proximity sensor doesn't seem to work while in the pocket either. The setting 'prevent accidental touches' has been enabled, however it is still responding to 'double tap to wake' while in the pocket for whatever reason...
Is there any fix to this?
I noticed the AOD stays on in my pocket as well. I thought maybe it was by design that way, even though it makes no sense.
Have not had a single pocket wakeup though.
It does seem that the proximity sensor (which is really the camera) doesn't work especially well though, from reports of people noticing it on phone calls. Hopefully something that can be fixed in software.
jdock said:
I noticed the AOD stays on in my pocket as well. I thought maybe it was by design that way, even though it makes no sense.
Have not had a single pocket wakeup though.
It does seem that the proximity sensor (which is really the camera) doesn't work especially well though, from reports of people noticing it on phone calls. Hopefully something that can be fixed in software.
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Click to collapse
Thanks mate, appreciate your feedback. Proximity sensor works fine on my phone during calls. Can't think of any reason why Samsung would intend it this way...
Proximity sensor issue here as well
I have the same problem. I put phone into test mode and it was bad compared to my wife's s9 search proximity sensor s20fe on YouTube and see others with issue
There is no fix. This is apparently the way AOD works now. I can't remember if it started with the S10s or S20s.
uggies said:
I am having an issue where always on display is staying ON while in pocket/faced down on the table. Feels like the proximity sensor is not working while on the AOD.
Plus, the proximity sensor doesn't seem to work while in the pocket either. The setting 'prevent accidental touches' has been enabled, however it is still responding to 'double tap to wake' while in the pocket for whatever reason...
Is there any fix to this?
Click to expand...
Click to collapse
I did some research on s20fe proximity sensor, because I desperately wanted flip case to open and close the screen.
Here is what I have noticed: there are two "proximity sensors" both sides of the front camera. These sensors close the screen during call if you touch them (I'm not sure if it's enough to touch just 1 or do you have to touch both of them). You need to touch these with your cheek or finger cause they need a electric field.
Phone also utilizes front camera light sensor during call: if there is no light, it turns off the screen but for this to happen phone needs to be on up right position. Screen won't close if the phone is on desk and you cover the camera.
So anyways, my point is that the proximity sensor is not able to detect if your phone is in the pocket or not. Only way for the phone to detect this is with the front camera light sensor, and I guess this would increase the battery consumption so much, there is no point.
You can test your "proximity sensors" by typing *#0*# in dialer numpad, select sensors and touch from the side of the front camera. If the screen turns green sensors are working.
No problems with Verizon S20 FE 5G UW
Huberttus said:
I did some research on s20fe proximity sensor, because I desperately wanted flip case to open and close the screen.
Here is what I have noticed: there are two "proximity sensors" both sides of the front camera. These sensors close the screen during call if you touch them (I'm not sure if it's enough to touch just 1 or do you have to touch both of them). You need to touch these with your cheek or finger cause they need a electric field.
Phone also utilizes front camera light sensor during call: if there is no light, it turns off the screen but for this to happen phone needs to be on up right position. Screen won't close if the phone is on desk and you cover the camera.
So anyways, my point is that the proximity sensor is not able to detect if your phone is in the pocket or not. Only way for the phone to detect this is with the front camera light sensor, and I guess this would increase the battery consumption so much, there is no point.
You can test your "proximity sensors" by typing *#0*# in dialer numpad, select sensors and touch from the side of the front camera. If the screen turns green sensors are working.
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Click to collapse
I just purchased the Samsung S20 FE 5G UW (how about we shorten this to FE UW?) with all updates AND a glass screen protector and have no touch/proximity issues.
FYI I bought it at the Costco kiosk for a few dollars less per month, no activation charges and a 90 day return policy.
the Galaxy S20 FE (5G) has no physiscal proximity sensor.
Insted it uses a combination of the front camera, touch screen and gyroscope.
I have tested the proximity issues, luckily for me there were ok...turn green. The only thing that drive me crazy is the touch screen issues which never been fixed even after updates. Oh well at least its better than before.
Huberttus said:
I did some research on s20fe proximity sensor, because I desperately wanted flip case to open and close the screen.
Here is what I have noticed: there are two "proximity sensors" both sides of the front camera. These sensors close the screen during call if you touch them (I'm not sure if it's enough to touch just 1 or do you have to touch both of them). You need to touch these with your cheek or finger cause they need a electric field.
Phone also utilizes front camera light sensor during call: if there is no light, it turns off the screen but for this to happen phone needs to be on up right position. Screen won't close if the phone is on desk and you cover the camera.
So anyways, my point is that the proximity sensor is not able to detect if your phone is in the pocket or not. Only way for the phone to detect this is with the front camera light sensor, and I guess this would increase the battery consumption so much, there is no point.
You can test your "proximity sensors" by typing *#0*# in dialer numpad, select sensors and touch from the side of the front camera. If the screen turns green sensors are working.
Click to expand...
Click to collapse
Mate great information here, really appreciate this.
Tested the Proximity sensor using *#0*#, I agree with your analysis. The proximity must be using electric reaction to detect if my ears are touching it or not. Covering it with a book does not trigger a proximity sensor... This explain why my screen keeps waking up in the pocket.
As much as this is annoying, there appears to be no way out Just have to let the phone face outside rather than my legs.
I also have the same issue, while on a phone call, the phone's screen goes on and off constantly and I can see the notification bar moving. Very annoying.
This is a terrible design by Samsung. The punch hole usually goes in the "Empty" part of the ear, so the screen stays mostly on.
I might just return the phone because of this issue, I don't see it getting fixed by a software update.
I have the exact opposite issue with the proximity sensor on my Samsung S20 plus running Android 10 - i.e. it works well by turning the screen off when my ear/cheek/face is very close to the proximity sensor during phone calls; whereas, when the phone's screen is locked and turned off, the proximity sensor is turned off as well. Control by hardware? Software/firmware? Don't know?! To turn the screen on without using the Power hardware button, I had to enable the "Double Tap" feature in Settings.
On earlier/other Android mobile devices - Samsung included - the proximity sensor is always on - whether the screen is on, off, or currently locked. When it's always on, you can be innovative and build a widget, for instance, to turn the screen on by "waving" your hand above the proximity sensor to interrupt the laser. I suspect new(er) Samsung mobile devices like S20 and Note20 variants might be using a "virtual" proximity sensor setup/combo for controlling the device's screen - and that really sucks!
To test if the proximity sensor is always activated on Samsung S20 and Note20 variants, I type *#77692# - which displayed a hardware screen to test proximity and light sensors. Note: if you type *#0*#, the proximity and light sensor options are absent from the hardware test screen.
Has anyone found any method - via codes even - to permanently turn on the proximity sensor, even when the screen is locked and turned off?
I searched through AOSP framework vanilla codes and couldn't see anything out of the ordinary regarding control of the proximity sensor. Samsung might be doing something dubious with their firmwares/hardwares though - well, at least, the S20 and Note20 variants are having issues with the proximity sensor setup.
P.S: Not sure if you guys are aware, but Samsung mobile devices with odd designation tends to be more problematic than their even-designated counterparts, like screen's burn-ins/shadows on Samsung S3 devices, light sensor fluctuation (which affects screen brightness control) on Samsung S5s, and now proximity problems with the S20s and Note20. Samsung S20 variants are in fact "S11" variants renamed. So the trend continues with Samsung always stuffing up their odd-designated device releases.
I feel there is no proximity sensor in this phone..
Becuase while i am on call , even though the screen is touched to my ear , it will light up randomly as i am walking and turning.
Is that function managed by accelerometer and gyroscope as in new redmi phones ?
The autobrightness is also acting weird for me in some cases .
aj7400 said:
I feel there is no proximity sensor in this phone..
Becuase while i am on call , even though the screen is touched to my ear , it will light up randomly as i am walking and turning.
Is that function managed by accelerometer and gyroscope as in new redmi phones ?
The autobrightness is also acting weird for me in some cases .
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Click to collapse
It doesn't do so for me but yes if I move my face when talking the screen turns on but then goes back off immediately. It seems that proximity sensor is managed by the accelerometer combined with ai just like it was in my old OnePlus 7Pro. However, I could be totally wrong!
amirage said:
It doesn't do so for me but yes if I move my face when talking the screen turns on but then goes back off immediately. It seems that proximity sensor is managed by the accelerometer combined with ai just like it was in my old OnePlus 7Pro. However, I could be totally wrong!
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Click to collapse
While on call I tried to use another phone`s camera to search for proximity sensor ( it is ir based , so camera picks it up).
But couldnt find it
aj7400 said:
While on call I tried to use another phone`s camera to search for proximity sensor ( it is ir based , so camera picks it up).
But couldnt find it
Click to expand...
Click to collapse
So then, my suspicions are right..It's accelerometer+ai
I think it uses the camera too. If you try unlock the phone with the selfie camera covered, it will try to prevent it.
Likewise, if you make a call with your phone placed flat on a surface, you can get the screen to turn off by covering the camera.
adamlee2012 said:
Yes it has one. It's near the light sensor... They are both under the display.
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Click to collapse
I dont think it has .
Even when i am on call , phone just touching my ear , it randomly lets the screen turn on .
Also as far as i remember , always on display in the previous generations used to turn off when the phone was in pocket ( or screen was covered)
But here , the aod always remains on regardless if phone is in pocket or outside .
adamlee2012 said:
I’ve just tested mine during phone call. It’s definitely there… I’ve seen it.
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Click to collapse
Yes you are right. It has an ir based one like note 10,20, s10, s20...
Samsung probably is wondering if they should make it invisible with no indicator. That tiny flashing circle has caused more commotion than a midget hooker in the playpen. Every new model provokes this same discussion... talk about a fixation
Using the camera sensor be prohibitive because of power consumption. It would still need an IR emitter to work properly. Net zero gain... and a lot of added complexity at best.
You can test the light sensor with CPU-Z, cover the space to the right of the front camera, that's also what triggers display dimming no matter what adaptive brightness settings you have.
my S20 FE does the same thing on calls. super irritating... i wonder if Samsung will correct the SD card slot omission mistake on the S22. they did the same thing with the S6 and fixed it on the S7
inpression said:
You can test the light sensor with CPU-Z, cover the space to the right of the front camera, that's also what triggers display dimming no matter what adaptive brightness settings you have.
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Click to collapse
The light sensor is there , itried with cpuz , but i feel the proximity sensor does not work properly .
It wakes up the screen during calls