Black screen on incoming calls in Xiaomi Redmi note 9 pro 128GB. - Redmi Note 9 Pro (International Model) General and

One question, they brought me the Xiaomi Redmi Note 9 Pro (128GB) Interstellar Gray (GLOBAL VERSION) as a gift and while it worked perfectly for a week until I installed MIUI 12.0.1.0 (QJZEUXM) and for 2-3 days it worked well and suddenly yesterday it showed me some messages when I went to unlock it for not covering the headphone jack and in incoming calls the screen turns black and I can not end the call!
I turned off the pocket function and the 1st problem is almost solved, while the 2nd with the screen tan remains.
Has it happened to you or a Redmi Note 9 Pro user?
How can it be solved?
From searching the internet in general I found various articles that other users have it and most likely it is a problem of proximity or proximity sensor!
Thanks in advance.

looks like the proximity sensor is covered somehow. the proximity sensor is located under the earpiece grill more towards the right side end. could be a piece of dust has become lodged just on top of it. try cleaning/blowing that area and see

I have clean the area in screen where the proximity is and blow but the problem still remaining.
Also I have return back to factory settings, reset it and do anything.
So it surprises me that there is no the function to enable or disable in settings-call incoming settings.!
I think to return back to the company-e-shop to bought it.

Agotel said:
So it surprises me that there is no the function to enable or disable in settings-call incoming settings.!
I think to return back to the company-e-shop to bought it.
Click to expand...
Click to collapse
no phones (even other brands) feature disabling of proximity sensor in-call UI. i think you l have to return the phone.

koshikas said:
no phones (even other brands) feature disabling of proximity sensor in-call UI. i think you l have to return the phone.
Click to expand...
Click to collapse
Thank you, I will search it again and very likely Ι will return it back!
Sincerely...
Agotel

Related

[Q] Proximity sensor calibration

I am having an issue with my proximity sensor and believe it may be some sort of calibration issue. It works (ie when I am in calls, if I cover it with my finger, it shuts off the screen) but the sensitivity has become very poor. I've had the phone since the day it was released and the proximity sensor had no trouble reflecting off my head and keeping the screen off during calls. Over the last few months I've noticed I started hitting buttons with my ear during calls because the screen is not shutting down. It seems like the sensitivity has decreased by some fixed amount in the last few months. It is very annoying because I keep accidentally hanging up on people or hitting the hold call button while I am talking.
The only two things I thought it could be would be either the sensor needs to be calibrated or possibly the sensor is going bad. I'm running the cyanogen 7 nightlies but have also tried reverting to some of the more stable RCs and still had the issue. I will try going back to a t-mobile rom tonight to see if that helps.
Has anyone else experienced this? Or does anyone know how to re-calibrate the sensor?
z test from market calibrates (im pretty sure)
smokeuout said:
z test from market calibrates (im pretty sure)
Click to expand...
Click to collapse
I gave it a shot, but I didn't see anything for calibrating the proxy sensor in that app.
I did however do a test using the camera on my transformer and compared the intensity of the proxy sensor LED to that on other phones. It appears as if mine is very dim and barely blinks. I think the infrared LED is burning out or the circuit that supplies it is not putting out the correct power.
Has anyone ever tried replacing a bad proxy LED before?
try sucking over the surface with a vaccum...i know it sounds crazy but its fixed alot of proxy sensors
smokeuout said:
try sucking over the surface with a vaccum...i know it sounds crazy but its fixed alot of proxy sensors
Click to expand...
Click to collapse
That, or use one of those compressed-air cans for cleaning stuff and blow it into the speaker hole towards the proximity sensor (to the left of the speaker hole.) The proximity sensor seems very sensitive to dust particles.
You haven't installed or changed screen protectors recently, by any chance? Those have been known to mess up the sensor. Also, make sure the protector or glass is nice and clean in the area of the sensor.
Thanks for all the great advice! I'm going to give the vacuum and air can a shot.
Oh and to answer redpoint, I haven't installed any screen protectors on this phone ever, but thanks for the advice.
My GF's Vision behaves the same...
Still looking for a calibration tool, i found only one, but that don't work.
Also tried to "clean" the sensor
I think we have to return it to htc...
Same problem with my DZ since I put Virtuous G Lite on it. Did you guys find a solution for your proximity sensor ?
Cleaning or software ?
cri-cri16 said:
Same problem with my DZ since I put Virtuous G Lite on it. Did you guys find a solution for your proximity sensor ?
Cleaning or software ?
Click to expand...
Click to collapse
I am having the same problem. I keep hitting the hold button. Any fixes?

[Q] Proximity Sensor dead. Suggestions to simulate its working?

Alright. My proximity sensor has been dead for a while now. (And yes, it indeed is dead. I've used Proximity Sensor Recallibrator and different apps for testing it.)
It's not a very big issue to use the phone without a working Proximity Sensor. But it gets annoying while attending calls. With a functional sensor, the phone locks itself when you place the phone next to your ear. However, as expected mine doesn't. I've made it a habit to manually lock the screen by pressing the power button before making a call or after receiving a call. However, there are times when I forget in the rush and it leads to very annoying things, the notification drawer slides down and apparently 'my ear' presses and activates wifi, bluetooth and almost everything on the power widget in the notification drawer.
Its really annoying.
I know there's no real way of actually simulating a proximity sensor. So I just need suggestions from you guys as to how to tackle this problem. Any suggestions with creative ideas or workarounds would be welcome.
When i had an htc hd2 i had the same proble and i was using one out of two apps the problem is i can't fully remember the names, one was ditching the proximity sensor and using the light sensor for proximity and the other one was suposed to make the proximity sensor much snappier using partial info from light sensor. Search the play store for "proximity".
P.S. did you dismantle the phone to see if you have dust behind the speaker gril? I had the same problem with my handset , i could have swore that my sensor was dead but after i cleaned it it worked. Hoped i helped
Sent from my Desire HD using xda app-developers app
bondocel said:
When i had an htc hd2 i had the same proble and i was using one out of two apps the problem is i can't fully remember the names, one was ditching the proximity sensor and using the light sensor for proximity and the other one was suposed to make the proximity sensor much snappier using partial info from light sensor. Search the play store for "proximity".
P.S. did you dismantle the phone to see if you have dust behind the speaker gril? I had the same problem with my handset , i could have swore that my sensor was dead but after i cleaned it it worked. Hoped i helped
Sent from my Desire HD using xda app-developers app
Click to expand...
Click to collapse
Light sensor data for proximity checks. Its an innovative idea... although wouldn't that make my phone lock itself when the lights are turned off?
Also, the dust thing might be a problem, I'll give it a try to see if it helps. Thanks.
if4ct0r said:
Light sensor data for proximity checks. Its an innovative idea... although wouldn't that make my phone lock itself when the lights are turned off?
Also, the dust thing might be a problem, I'll give it a try to see if it helps. Thanks.
Click to expand...
Click to collapse
1 No that app activates only in call, it bypasses the the sensor data from proximity to light while in call then reverts back after call ends the only downside is that it is not as snappy but it is better than nothing
2 Dismantle your back casing and you will find the motherload of dust in speaker grill, if you didn't check that out first then i'm 99% sure this is your problem: filth in speaker grill and on proxy and light sensors you will find a carpet of dust
Caution!!!!
-watch a dismantling video before you start
-if you want to use compressed air to clean the speaker funnel don't exceed 2 bar max and blow at a distance of 15-25 cm not closer
For further support i will help you over forum but check google or xda for a tutorial
bondocel said:
1 No that app activates only in call, it bypasses the the sensor data from proximity to light while in call then reverts back after call ends the only downside is that it is not as snappy but it is better than nothing
2 Dismantle your back casing and you will find the motherload of dust in speaker grill, if you didn't check that out first then i'm 99% sure this is your problem: filth in speaker grill and on proxy and light sensors you will find a carpet of dust
Caution!!!!
-watch a dismantling video before you start
-if you want to use compressed air to clean the speaker funnel don't exceed 2 bar max and blow at a distance of 15-25 cm not closer
For further support i will help you over forum but check google or xda for a tutorial
Click to expand...
Click to collapse
Can you recall the name of the apps? A bit more help than "proximity" would do.. there are a ton load of crappy apps out there with proximity in their names
And thanks for the suggestion I was indeed watching a dismantling video just now.
https://play.google.com/store/apps/details?id=TomReay.proxSensor&feature=search_result
This was the app i initialy used but back then it was't only for htc hero it was only fot htc
But i can't seem to find the second one it was something like :
https://play.google.com/store/apps/details?id=com.hardrock.smartscreenoff&feature=search_result
But i am not 100 % sure this is it
Any progres on dismanteling? i do the cleaning about once in 2 months and it works perfect
bondocel said:
https://play.google.com/store/apps/details?id=TomReay.proxSensor&feature=search_result
This was the app i initialy used but back then it was't only for htc hero it was only fot htc
But i can't seem to find the second one it was something like :
https://play.google.com/store/apps/details?id=com.hardrock.smartscreenoff&feature=search_result
But i am not 100 % sure this is it
Any progres on dismanteling? i do the cleaning about once in 2 months and it works perfect
Click to expand...
Click to collapse
These were the apps that I found. The first one does not work. (I tried it out of desperation even though it stated it was only for HTC Hero ). I read the description of the second one you mentioned and it does not state any such feature about using the light sensor. The closest thing that app would do is to turn the screen off by shaking.
Anyway, you've given me the idea about using the light sensor data only when there is a phone call to lock the screen. I'll try to use Tasker to see if I can make a setting for that scenario. Otherwise I'll just go ahead and make the app.
As for the dismantling, I've seen the video and to get to the grill all I have to do is to remove the gps cover, remove the agency sticker, unscrew 5 screws of the main body cover and remove the cover... right? But unfortunately I don't have the screwdrivers right now, I'll get them first tomorrow and then definitely clean the grill.
if4ct0r said:
These were the apps that I found. The first one does not work. (I tried it out of desperation even though it stated it was only for HTC Hero ). I read the description of the second one you mentioned and it does not state any such feature about using the light sensor. The closest thing that app would do is to turn the screen off by shaking.
Anyway, you've given me the idea about using the light sensor data only when there is a phone call to lock the screen. I'll try to use Tasker to see if I can make a setting for that scenario. Otherwise I'll just go ahead and make the app.
As for the dismantling, I've seen the video and to get to the grill all I have to do is to remove the gps cover, remove the agency sticker, unscrew 5 screws of the main body cover and remove the cover... right? But unfortunately I don't have the screwdrivers right now, I'll get them first tomorrow and then definitely clean the grill.
Click to expand...
Click to collapse
If you have the phone for a long time and you never cleaned it , that might be your problem.
Btw didn't you notice that the phone would turn off harder and sometimes sporadickly while in call before it stoped working?
bondocel said:
If you have the phone for a long time and you never cleaned it , that might be your problem.
Btw didn't you notice that the phone would turn off harder and sometimes sporadickly while in call before it stoped working?
Click to expand...
Click to collapse
Actually.. I don't recall when it actually stopped working. So no, I have no recollection of such happenings. But I do believe you that it might be a possible cause because of the way I handle the phone, dust is a very real possibility.
Ok my friend i will stay tuned on the topic. i will go to bed now but i will be here tomorow to help and assist with whatever i can.
Good luck m8!
Tell me if you mannaged to fix anything.
First of all try to clean the sensor
I've got a simple one... Call a friend and place your hand over the sensor. If the screens turns off its working lol

Question Any software solution to proximity sensor failure on calls?

Hello,
Before buying the Poco F3 I've never had a phone with this system without a proximity sensor, and the truth is that after using the phone for two weeks I'm sick of it. I'm even thinking of selling the phone.
Due to the fact that the problem is related to the lack of appropriate hardware, I think that a possible solution for phone calls could be that the screen would automatically lock when answering calls, and then to manipulate the screen again it would be necessary to unlock a via a slider, pattern, fingerprint, or facial recognition.
Do you know any solution or calling app that allows to do something about this? Root wouldn't be a problem.
Thank you.
I tried the recalibration but did not work. Also I am using a new tempered glass screen protector but no luck. It would be interesting to hear from someone who is using a custom ROM if the problem is solved there
you want poco f3 to go screensaver mode/ blackscreen when your calling/talking to someone?
Unfortunately, they have to use palm rejection in conjunction with the camera to get it to work but it will never be as good... I know that feeling bro... hate how when listening to audios on Instagram or whatsapp this **** doesn't even work at all
I checked the proximity sensor test in CIT and it is very inconsistent for me too. I guess this device has an ultrasonic proximity sensor instead of the infrared sensor that is generally used, and it hasn't been calibrated correctly. Maybe future updates could fix it hopefully
i use this app name "proximity service" when you cover the proximity sensor near front camera the screen would turn off while the running apps does not get shutdown i use it to stream call of duty without my phone screen running so phone don't get overheat
so is the proximity sensor actually broken on everyones device. what the hell something as simple as that they messed up.
sam00561 said:
so is the proximity sensor actually broken on everyones device. what the hell something as simple as that they messed up.
Click to expand...
Click to collapse
provably intentional they sacrifice some hardware to fit its price range this explain why the phone cost $200 on some country while other have it at $400
business my friend lol
ineedroot69 said:
provably intentional they sacrifice some hardware to fit its price range this explain why the phone cost $200 on some country while other have it at $400
business my friend lol
Click to expand...
Click to collapse
I think proximity sensor is an essential part of a phone during they haven't left it out. Must be software bug.
As far I know, this phone don't have any proximity sensor, I guess that this is because design reasons, don't think that the proximity sensor hardware cost more thant cents. The phone uses an ultrasonic "sensor" combined with the gyroscope, because of that, the sensor only works (when it works) with the phone in vertical.
For Whatsapp, instagram or other audios I don't think there is a solution for this, even with future updates, since the main problem is the lack of hardware and isn't possible to modify the apps.
I thought that a "solution" for phone calls could be that if when answering calls the touchscreen locks automatically (even if the sensor malfunctions and don't turn off the screen), and for unlock a slider on screen or something similar was necessary, could be a solution for misstouching the touchscreen with the face. Even using screensaver mode/blackscreen for this purpose could be a solution, but I can't figure out if this is possible with some other third party telephone app.
Are proximity sensors needed?
I am thinking about buying this phone, but this concerns me.
CoolGuyOnTheInternet said:
Are proximity sensors needed?
I am thinking about buying this phone, but this concerns me.
Click to expand...
Click to collapse
I already bought it and found out about this sensor issue after purchase the phone is on its way and i am kind of regretting the purchase because sensor is quite important so that the screen can go off when the phone is near your ear and also for some reason when playing voice note on whats app people are saying the screen turns off and doesnt come back on which is a huge flaw in my opinion. I cant think how this could possibly be fixed without the option of a physical IR proximity sensor.
sam00561 said:
I already bought it and found out about this sensor issue after purchase the phone is on its way and i am kind of regretting the purchase because sensor is quite important so that the screen can go off when the phone is near your ear and also for some reason when playing voice note on whats app people are saying the screen turns off and doesnt come back on which is a huge flaw in my opinion. I cant think how this could possibly be fixed without the option of a physical IR proximity sensor.
Click to expand...
Click to collapse
Dang, I wonder if software can fix it?
CoolGuyOnTheInternet said:
Dang, I wonder if software ca
Click to expand...
Click to collapse
CoolGuyOnTheInternet said:
Dang, I wonder if software can fix it?
Click to expand...
Click to collapse
i really need to know this too. Have you got the phone yet
sam00561 said:
i really need to know this too. Have you got the phone yet
Click to expand...
Click to collapse
No, I have not ordered it yes since I am in Canada.
CoolGuyOnTheInternet said:
No, I have not ordered it yes since I am in Canada.
Click to expand...
Click to collapse
Ok maybe Hold off a while until more is known
I am also experiencing this same issue. Due to this, I had sold my previous device Mi 11Lite to a friend of mine since he isn't bothered about the issue. Now in Poco F3, I am facing this issue. Sometimes it gets off and sometimes it doesn't. Initially, I first experience this issue in Redmi Note 9S but then the same issue arises in Mi 11 Lite. But in Poco F3 it does more frequently then my previous devices.
I think it's due to wired location of the proximity sensor which controls it in these thin bezels devices since the earphone grill is too small. Its driver or software should be tweaked by developers or Xiaomi in sort of patch or update.
If there is any fix or workaround for this then kindly share since it's very annoying especially listening to WhatsApp messages is a pain in the ass.
Also my f3 when I make a call and phone is upright and my face is facing it then the screen goes off. This does not happen when the phone is lying down
sam00561 said:
Also my f3 when I make a call and phone is upright and my face is facing it then the screen goes off. This does not happen when the phone is lying down
Click to expand...
Click to collapse
i thought that what supposed to happen? also forcing your proximity sensor to "always run" and detect if your phone put down on table lying down and turn off screen would eat more battery
ineedroot69 said:
i thought that what supposed to happen? also forcing your proximity sensor to "always run" and detect if your phone put down on table lying down and turn off screen would eat more battery
Click to expand...
Click to collapse
Yes, for example when you're lying on the bed or the couch and want to attend phone calls and hear whatsapp audios.

[SOLVED] Mi 10T Pro low microphone volume

I have a serious problem with my mi 10T Pro, the microphone volume Is too low. This happens on all third-party apps and also the stock recorder / camera app. The phone has not suffered any particular damage in recent times. This problem has been occurring for about 2 days. I need help, it's a really big problem especially during calls. I am now with MIUI 13.0.5.0 Global, updated 1 month ago. Locked bootloader.
Most probably that the microphone hole has dust or stuff in it, you should try cleaning it, also it could be that the phone was dropped or shook, even of it was dropped on a soft pillow it still could've moved the microphone away from it's slot.
Confused Gamer said:
Most probably that the microphone hole has dust or stuff in it, you should try cleaning it, also it could be that the phone was dropped or shook, even of it was dropped on a soft pillow it still could've moved the microphone away from it's slot.
Click to expand...
Click to collapse
I solved by completely disabling Google assistant. Thanks for the help anyway.

[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...
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
You are the best thanks a lot
Works 100% fine after new calibration.

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