Database Users

Proximity Sensor help needed!

Hi all,
I think my Proximity sensor is broken..... can one try the following:
*#0588# (Proximity Sensor Test Mode)
And tell me what happens when the sensor is covered?
Also anyone got suggestions on how I can fix this?
Thanks
Tony

It works for me with *#0*# then select sensors and then move your hand close to the phone.
It also works with your code, the phone vibrates and the background changes colour when my hand is 5cm above the sensor.

LouisJB said:
It works for me with *#0*# then select sensors and then move your hand close to the phone.
Your code did not start anything running.
Click to expand...
Click to collapse
Can you please tell me what it says in Sensor?
In Proximity Sensor I have:
Proximity Sensor (Min/Avg/Max)
------------------------------------------
PROXIMITY: null ADC: 0 (0,0,1)
and sometimes when I cover the sensor it changes to : ADC: 2 (0, 1, 2)
Thanks

Looks like it is broken ACC 78(83,85,89) with my thumb over the sensor.
The important number is the first number (78). This must go over 10 to register as near at about 5cms , then the background turns green.

LouisJB said:
Looks like it is broken ACC 78(83,85,89) with my thumb over the sensor.
The important number is the first number (78). This must go over 10 to register as near at about 5cms , then the background turns green.
Click to expand...
Click to collapse
Thanks for that. Do you know if it's a firmware (I do have original Firmware on it but had CM7 on it for a while)

Looking like a faulty phone to me. These are hardware sensor tests.

a friend of mine has the same problem. We bought the telephone together but , after 1 month, his proximity sensor stopped working.
We tried the samsung diagnostic tool receiving the same information (ADC reach maximum 4).
we noticed that it stopped working after the change of the rom (with the installation of the clock recover) but I'm sure this is the real cause.
Is there a configuration file where proximity sensor parameter like gain/offset are stored?
Maybe some buggy application has changed these values.

if you have no warrenty, you can buy a replacement sensor, only about £10, it's front cam/sensors in one component

problem fixed!
Using phonetester it took 5 minutes to connect to the sensor (while with my phone it took 1 minute) but once connected , the proximity sensor started to work again also with samsung diagnostic and phone application.

donomark said:
problem fixed!
Using phonetester it took 5 minutes to connect to the sensor (while with my phone it took 1 minute) but once connected , the proximity sensor started to work again also with samsung diagnostic and phone application.
Click to expand...
Click to collapse
what did u use to repair ?, mines says proximity: null ADC range from 1 when nothing is in it;s way to 255 when coverd...

install only apps that you trust fully
Sent from my GT-I9100 using xda premium

Proximity sensor problem! [SOLVED!]

Hi everyone, welcome to the next thread of mine where I would like to share with you an interesting case of a'faulty' proximity sensor. The issue with the sensor started a few weeks ago (I own my defy for a few months) and the problem I had with it was that sometimes during I was making a call the screen was not being turned off, and more whats more annoying - the screen was never turned on again after finishing the call.
I do not have a screen protector and the screen glass is original.
I downloaded an application that showed the state of the sensor and after a many examinations i found out that many times the sensor does not distinguish between the states of being covered and uncovered.
I tried everything - factory reset, clean installations, different ROMs - nothing helped. The only thing that helped a little was a tweak availale in the CM7 ROM by Quarx (not available in the STABLE CM7 though!) in the screen settings menu -which forced the screen to be turned on after finihing a call, and I could also set the power button to end a call in the accessibility options. So this helped but did not solve my problem.
Fortunately, after many questions asked on so many threads, the user monecafe PMed me with a link to a video where its clrealy shown what is the problem and how easy it is to fix it!
without sayng more - here is the solution for anybody experiencing this issue:
http://youtu.be/uMk1S90MjbY
I hope this helps !
& a BIG THANK YOU to monecafe who sent me this video

this is great, very simple solution but...
how will that affect the water resistant feature of our defys?

try turning off auto-brightness
posting to say... try turning off auto-brightness (worked for me)

I used to have this problem. Stable CM7.2 solves this issue for me. I used to get the screen to turn on before by just rubbing the area with the proximity sensor with my thumb as if it was dirty.

i still have this problem. , after the Waterproof failed with my phone ( i dont leave it in water, i just wash it !! the proximity sensor failed too when i make a call screen is black cant see anything..so my question is if i change the screen touch proximity sensor work?? or its on the board ? where is the proximity sensor place?..how can i solve this problem by myself.
i saw the video but not solve the problem..
i back to stock ROM _there_ if i press power button the screen back but in coustoms ROMs the screen off not back till remove the battery!! any software make screen on at call and disible the proximity sensor ?
thank you inadvance

dlshad said:
...if i change the screen touch proximity sensor work?? or its on the board ? where is the proximity sensor place?
Click to expand...
Click to collapse
No, it's on the board.

Auris 1.6 vvt-i said:
No, it's on the board.
Click to expand...
Click to collapse
THANK YOU PROBLEM SOLVED ITS WAS ABOUT A SMALL PLASTIC IT WAS OFFICER OF WORK PROXIMITY SENSOR A SMALL PLASTIC!! THANK YOU ALL THIS VIEDO HELPED ME TOO AT TIME 2:50
http://www.youtube.com/watch?feature=endscreen&NR=1&v=5eiFQ39Ypmc
CAN I GET THE TECHNICAL GUIDE(MAP) OF BOARD?

I also have problems with proximity sensor. With pressure on the screen where the sensor is located it is working again.
So I can believe that changing the screw pressure might solve the problem. But what is the initial reason for this? It is not a pressure sensor!

Hello All, I've been using the proximity sensor app on my DHD for quite some time now... LOVE IT ! However, now when I open the app & tap on Start & cover the proximity sensor on the phone, there is NO RESPONSE... Meaning the msg stays FAR... It DOES NOT change to NEAR.... Can anyone help me out ? CHEERS !

Proximity sensor Star N8000
asimriz said:
Hello All, I've been using the proximity sensor app on my DHD for quite some time now... LOVE IT ! However, now when I open the app & tap on Start & cover the proximity sensor on the phone, there is NO RESPONSE... Meaning the msg stays FAR... It DOES NOT change to NEAR.... Can anyone help me out ? CHEERS !
Click to expand...
Click to collapse
Hello all,
My 1st post. Pls i dont want any lectures on chinese clones, thats what some of us can afford! i Just got a Star N8000 which is a clone of a Samsung Note. I LOVE the phone. The only problem is that when make a call lets say to check voicemail, the screen goes black, the proximity sensor flashes continuosly (small red flashes) & nothing i do brings the screen back unless the call ends from the other side or i take out the battery. I dont want to root my phone just yet. It uses a tmd2771 proximity sensor. HELP! anybody

Solution??
Davyin04 said:
Hello all,
My 1st post. Pls i dont want any lectures on chinese clones, thats what some of us can afford! i Just got a Star N8000 which is a clone of a Samsung Note. I LOVE the phone. The only problem is that when make a call lets say to check voicemail, the screen goes black, the proximity sensor flashes continuosly (small red flashes) & nothing i do brings the screen back unless the call ends from the other side or i take out the battery. I dont want to root my phone just yet. It uses a tmd2771 proximity sensor. HELP! anybody
Click to expand...
Click to collapse
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.

Davyin04 said:
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.
Click to expand...
Click to collapse
I have the same problem with proximity sensor tmd2771 my phone is htc one x clone (E1911)
i make the calibration but its still have the problem it saws me the sensor goes up and then goes down from itself and at the calls the screen goes black and opens again from itself is there a solution for that???

Davyin04 said:
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.
Click to expand...
Click to collapse
Is this applicable for Motorola Defy or for the Chinese clone?
I tried this on my Defy running JB 4.1.2. I cannot get into the "factory testmode" even after pressing the VOL down key at boot up.
I just get a screen with an exclamation and the android bot.
Nothing happens after that.
BTW: What size of screw driver should I use to perform the trick in the video posted by the OP.

Not applicable to original defy
Sent from my MB526 using xda premium

Holy sh't it worked <333333333333

I cannot believe. IT WORKS. Its bugging me from the start..

your_login
thank you for the useful posting

queBurro said:
posting to say... try turning off auto-brightness (worked for me)
Click to expand...
Click to collapse
Yes finally this seems to be working for me too. Thanks

Thank you for so excelent video. I have same problem but just for sometimes. I will check will this help.

Can anybody post this video on dailymotion or any other video hosting site as youtube is blocked in my country. I really would appreciate that as I am having problem with my Desire HD's proximity sensor.

Screen locks immediately during calls - proximity sensor not working?

I have two SGS4's. On one, when I place a call, the call screen stays on and it turns off when I raise it to my ear. It then turns on when I pull it away.
On the other, as soon as I place I call the screen goes dark. The only way to get it back is to push the power button and unlock the phone.
The "Turn screen off during a call" setting is set on both phones.
Anyone have any idea what is causing this? Next step is to do a wipe, but that just sucks.
I'm on stock and not rooted.
Thanks!

Sadly I have the same issue on mine but not my wifes.... hope somebody knows something or maybe the rumored update thats going to be coming out will have a fix?? I dunno...

jprocket45 said:
Sadly I have the same issue on mine but not my wifes.... hope somebody knows something or maybe the rumored update thats going to be coming out will have a fix?? I dunno...
Click to expand...
Click to collapse
Have you tried doing a reset yet? I'm hesitant since it's a pain to restore everything the way I like it. Definitely a weekend task.

Sirchuk said:
Have you tried doing a reset yet? I'm hesitant since it's a pain to restore everything the way I like it. Definitely a weekend task.
Click to expand...
Click to collapse
I have done a reset it solved it a little I guess but still having issues once in a great while all works well id blame it on the otterbox case but my wife has one so dunno if that could be the issue you have a case on urs never really played with the phone outside of the case lol
Sent from my SPH-L720 using xda app-developers app

jprocket45 said:
I have done a reset it solved it a little I guess but still having issues once in a great while all works well id blame it on the otterbox case but my wife has one so dunno if that could be the issue you have a case on urs never really played with the phone outside of the case lol
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Nope, mine is naked for now. I'll have to do a reset today/tomorrow and see if that solves my issue. If not, I'm taking back to the store for an exchange. It's only been a couple of weeks.

To late for me to take it back but suppose to be a update coming soon that does alot of fixes so we will see Good luck like I said reset I did notice fixed it a bit let me know how it goes I'm threw sprint just curious if you have them only reason I ask if it's just a carrier issue with software or something I doubt it but just figured to see who you had lol
Sent from my SPH-L720 using xda app-developers app

Dial *#7353# and make a test
sent from my Galaxy

samersh72 said:
Dial *#7353# and make a test
sent from my Galaxy
Click to expand...
Click to collapse
That's what I was looking for!
Sure enough,the proximity sensor was always on and wouldn't go off.
I'm with T-Mobile and they have a 30 return/exchange policy if you buy it outright, which I had, so it only took about 10 minutes for them to exchange it!
Thanks for the testing code! XDA comes through once again!

Same problem when I'm making a call, the screen goes blank when I put it to my head and when I remove it nothing happens.
I tried *#7353# and the proximity sensor goes of but will not stop..
I'm currently rooted, could it solve the problem to go back to stock?

Possible Fix
jprocket45 said:
Sadly I have the same issue on mine but not my wifes.... hope somebody knows something or maybe the rumored update thats going to be coming out will have a fix?? I dunno...
Click to expand...
Click to collapse
I have had the same problem over the last 3 weeks and decided to take a gamble. I tightened up all the screws on the device and squeezed real hard on the area where the prox sensor is and poof... it works. I have no idea what was up but I feel like the sensor is loose and the pressure resolved the issue. Many other post have talked about cleaning the area over the prox real good and it works but I think its the pressure that is actually fixing the issue. Anyone else have any ideas? Sorry if this was posted incorrectly, I have never posted before but I felt this issue is a PITA.

I have i9500. Unrooted with latest OTA update installed (Build XXUBMG1).
I've been having the same problem with proximity sensor. When proximity sensor is enabled during phone calls (both regular calls and Viber calls), the screen is disabled. Also, my screen sometimes remains on during the call until I place it to my ear and sometimes it turns off immediately during the call. It wasn't always like this, but I can't remember when it started happening, but I suspect it was since the last OTA update.
I've searched around online and have noticed several comments.
Apparently this is an issue with several Galaxy models over the years (sorry, I lost the reference) and this thread: http://forum.xda-developers.com/showthread.php?t=2208440&page=2 mentions Galaxy Note 2 and SGS3 having the issue where there is something wrong with the threshold setting in the calibration settings. Mine appears to have the same issue where it always reads 0cm (i.e. always covered). However this thread also suggests a fix to input some code to adjust the calibration if your phone is rooted.
One suggestion is there is a misalignment of the sensor and so it might be partially covered by the phone's front fascia, causing the sensor to always read as covered or "1" or 0cm. But looking carefully at mine, it looks centred dead-on.
This thread http://forum.xda-developers.com/showthread.php?t=2417401 indicates that the sensor is always on as can be seen through a digital camera LCD (but not with your naked eye). I've tried this with my DSLR and confirmed this also happens with mine, even when the option is set to turn it off during calls, and also even when air gesture (which uses the prox sensor) is turned off. Not sure if this affects the problem or not though.
Can't remember where I read this, but someone mentioned that when shining a bright light over the phone, it works. So I downloaded two sensor apps from Google Play: Android Sensor Box, and Proximity Sensor Finder. And also used the inbuilt *#7353* feature. All three report that my proximity sensor is always reading that something is constantly covering it..... EXCEPT when a bright light (the sun works) is shining on the light sensor - not the proximity sensor. I tested this by using a torch on both sensors. When blocking light from the light sensor, the problem persists, but not when I allow the light to shine on the sensor. So it appears that they both act in unison.
Similar issue with air gestures, which used to work when my phone was new, even in relatively ambient light (but obviously not in a dark room), but now doesn't under similar conditions, and again... EXCEPT when a bright light is shining on the light sensor, or when I'm out in the sun.
Anyway, I'm not willing to root my phone at this point, just to try the fix suggested in http://forum.xda-developers.com/showthread.php?t=2208440&page=2 (my phone was bought overseas and returning it wouldn't be convenient for me). And since this wasn't always a problem with my phone, I suspect it is a software problem related to one of the recent OTA updates.
Edit: After further testing, it seems that air gestures use the front camera as well as the light and proximity sensors.

My proximity sensor works - when I go into diagnostic, it goes green when I bring a hand near the sensor - my issue is that it doesn't seem to notice when I remove my hand and there no longer is anything proximal - until I hit the back button to exit the test. Other than blowing out the earphone jack, does anyone have a suggestion?
Thx.
divche said:
I have i9500. Unrooted with latest OTA update installed (Build XXUBMG1).
I've been having the same problem with proximity sensor. When proximity sensor is enabled during phone calls (both regular calls and Viber calls), the screen is disabled. Also, my screen sometimes remains on during the call until I place it to my ear and sometimes it turns off immediately during the call. It wasn't always like this, but I can't remember when it started happening, but I suspect it was since the last OTA update.
I've searched around online and have noticed several comments.
Apparently this is an issue with several Galaxy models over the years (sorry, I lost the reference) and this thread: http://forum.xda-developers.com/showthread.php?t=2208440&page=2 mentions Galaxy Note 2 and SGS3 having the issue where there is something wrong with the threshold setting in the calibration settings. Mine appears to have the same issue where it always reads 0cm (i.e. always covered). However this thread also suggests a fix to input some code to adjust the calibration if your phone is rooted.
One suggestion is there is a misalignment of the sensor and so it might be partially covered by the phone's front fascia, causing the sensor to always read as covered or "1" or 0cm. But looking carefully at mine, it looks centred dead-on.
This thread http://forum.xda-developers.com/showthread.php?t=2417401 indicates that the sensor is always on as can be seen through a digital camera LCD (but not with your naked eye). I've tried this with my DSLR and confirmed this also happens with mine, even when the option is set to turn it off during calls, and also even when air gesture (which uses the prox sensor) is turned off. Not sure if this affects the problem or not though.
Can't remember where I read this, but someone mentioned that when shining a bright light over the phone, it works. So I downloaded two sensor apps from Google Play: Android Sensor Box, and Proximity Sensor Finder. And also used the inbuilt *#7353* feature. All three report that my proximity sensor is always reading that something is constantly covering it..... EXCEPT when a bright light (the sun works) is shining on the light sensor - not the proximity sensor. I tested this by using a torch on both sensors. When blocking light from the light sensor, the problem persists, but not when I allow the light to shine on the sensor. So it appears that they both act in unison.
Similar issue with air gestures, which used to work when my phone was new, even in relatively ambient light (but obviously not in a dark room), but now doesn't under similar conditions, and again... EXCEPT when a bright light is shining on the light sensor, or when I'm out in the sun.
Anyway, I'm not willing to root my phone at this point, just to try the fix suggested in http://forum.xda-developers.com/showthread.php?t=2208440&page=2 (my phone was bought overseas and returning it wouldn't be convenient for me). And since this wasn't always a problem with my phone, I suspect it is a software problem related to one of the recent OTA updates.
Edit: After further testing, it seems that air gestures use the front camera as well as the light and proximity sensors.
Click to expand...
Click to collapse

Proximity sensor
I had problem with proximity sensor in my galaxy s3 mini but my rear camera had error and fc also.I tried everything and nothing work.Finaly I open device and disconect camera and connect it again and camera started to work.But for my suprise proximity sensor now works perfect and I did not touch it.I can't explain what happend but I am happy.

I guess what it comes down to is.....for some you can reset the sensor, for some they can blow it out with compressed air, but others actually have to take apart their phone to fix this issue.
marduj5 said:
I had problem with proximity sensor in my galaxy s3 mini but my rear camera had error and fc also.I tried everything and nothing work.Finaly I open device and disconect camera and connect it again and camera started to work.But for my suprise proximity sensor now works perfect and I did not touch it.I can't explain what happend but I am happy.
Click to expand...
Click to collapse

hi
i have the same problem. any solution guys ?
( BTW - im on NB3 INS firmware )

I think I summarized the available solutions just before your post. There is no single thing which always works, you'll need to go through and see which fixes yours. This happens primarily because of hardware, with the sensor getting dirty - so it comes down to how invasive the procedure to clean it.
Shohat said:
i have the same problem. any solution guys ?
( BTW - im on NB3 INS firmware )
Click to expand...
Click to collapse

Hubris2 said:
I think I summarized the available solutions just before your post. There is no single thing which always works, you'll need to go through and see which fixes yours. This happens primarily because of hardware, with the sensor getting dirty - so it comes down to how invasive the procedure to clean it.
Click to expand...
Click to collapse
i'm sorry. i already tried your first solution and it worked like charm ! thank you ! :good:

HOw to solve, none of this works. How cann i clean proximity?

Air Gestures not working

Hey everyone! I am having a big problem. Previously, my air gestures used to work perfectly but now they are not. I've even enabled Quick Glance, air browse etc under settimgs but still I can't use air gestures! :'(
I've tried rebooting too. Is there any fix except for factory reset or flashing firmware?
My device is gti9500 with android lollipop stock rom.

I would suggest downloading sensor test from the play store and checking if the proximity sensor works as intended.

GDReaper said:
I would suggest downloading sensor test from the play store and checking if the proximity sensor works as intended.
Click to expand...
Click to collapse
Yep. Proximity sensor is working fine.

munimjaffer said:
Yep. Proximity sensor is working fine.
Click to expand...
Click to collapse
Yeah, but the proximity sensor and air gesture sensors are separate. If one works it doesn't mean the other one works.

GDReaper said:
Yeah, but the proximity sensor and air gesture sensors are separate. If one works it doesn't mean the other one works.
Click to expand...
Click to collapse
I did as you said. Downloaded app to check proximity sensor and that was working fine, now what's the fix?

munimjaffer said:
I did as you said. Downloaded app to check proximity sensor and that was working fine, now what's the fix?
Click to expand...
Click to collapse
Did you read what I said?
The air gesture sensor has nothing to do with the proximity sensor. They are 2 different sensors.
If you want to fix it, re-flash the stock ROM. If that doesn't work, you might have to tear the phone apart and clean the sensor.

GDReaper said:
Did you read what I said?
The air gesture sensor has nothing to do with the proximity sensor. They are 2 different sensors.
If you want to fix it, re-flash the stock ROM. If that doesn't work, you might have to tear the phone apart and clean the sensor.
Click to expand...
Click to collapse
Ok

@GDReaper , I've detected the problem. It is hardware related. The problem is that from the top(where there is Samsung logo) the screen is slightly raised upwards. When I press the screen tightly inwards and then try to air browse, it works fine. Is there any way I could bring screen back to its position?
Sorry for little bit of bad English.

munimjaffer said:
@GDReaper , I've detected the problem. It is hardware related. The problem is that from the top(where there is Samsung logo) the screen is slightly raised upwards. When I press the screen tightly inwards and then try to air browse, it works fine. Is there any way I could bring screen back to its position?
Sorry for little bit of bad English.
Click to expand...
Click to collapse
Try using a blow dryer to heat up the screen and then put something fairly heavy on the screen to keep it pressed down.
Hopefully the glue should become liquid from heating and harden again with cooling. Otherwise you might have to change the glass.

GDReaper said:
Try using a blow dryer to heat up the screen and then put something fairly heavy on the screen to keep it pressed down.
Hopefully the glue should become liquid from heating and harden again with cooling. Otherwise you might have to change the glass.
Click to expand...
Click to collapse
Ohh ok bro

Proximity sensor not working

Hi.
I have problem with proximity sensor. While making a phone call, display is always on.
I tried to enable it in settings. Turned it on, rebooted my phone and nothing happened.
Also tried *#*#6484#*#* solution, and when I open proximity sensor, there are 'test' and 'error' buttons on the screen and I can't click anything.
Does anyone know how to fix this?

In the engineering menu * # * # 6484 # * # * we find 27 - Proximity sensor
When approaching the palm to the front camera should show "0".
I always showed "5", did not want to be calibrated.
I pressed Error, went out and went to the engineering menu, a miracle happened - it was calibrated.

stanley56 said:
In the engineering menu * # * # 6484 # * # * we find 27 - Proximity sensor
When approaching the palm to the front camera should show "0".
I always showed "5", did not want to be calibrated.
I pressed Error, went out and went to the engineering menu, a miracle happened - it was calibrated.
Click to expand...
Click to collapse
No, nothing happened. As usuall, screen is always on.
Yes, proximity sensor in settings was on and I have rebooted the phone.
I really don't know what to do. Is it because of bug in Global Rom or is it hardware malfunction?

Fortis10 said:
No, nothing happened. As usuall, screen is always on.
Yes, proximity sensor in settings was on and I have rebooted the phone.
I really don't know what to do. Is it because of bug in Global Rom or is it hardware malfunction?
Click to expand...
Click to collapse
Hold your phone with your left hand. The placement sensor gets blocked by your right ear when you make calls using your right hand. Give it a go and get back to us.

DelphinusMinor said:
Hold your phone with your left hand. The placement sensor gets blocked by your right ear when you make calls using your right hand. Give it a go and get back to us.
Click to expand...
Click to collapse
Ok, non-related to left and right hand.. Now my phone gets black screen all the time during calls. I can't put it on speaker or do anything while talking with someone. I really don't know what's happening...

Fortis10 said:
Ok, non-related to left and right hand.. Now my phone gets black screen all the time during calls. I can't put it on speaker or do anything while talking with someone. I really don't know what's happening...
Click to expand...
Click to collapse
I can't help there but left/right holding is an issue I guess with this phone. Or maybe it's the Pro. I forget offhand.

Fortis10 said:
Ok, non-related to left and right hand.. Now my phone gets black screen all the time during calls. I can't put it on speaker or do anything while talking with someone. I really don't know what's happening...
Click to expand...
Click to collapse
Obviously the proximity sensor is at fault. Enter the menu using the code mentioned above, then press the menu/options button and select Calibrate proximity sensor. Once you're there, hold your hand over the proximity sensor (to the right of the front camera) and tap the Calibrate button. That's one thing that could fix it.
Failing that, go to incoming call settings and turn off the proximity sensor (turn off screen in call). Restart your phone, go to the same toggle and turn it on.
If neither of these works, you likely have a faulty piece of hardware. Your last option is to have the phone repaired or try a different kernel/ROM.

Fortis10 said:
Hi.
I have problem with proximity sensor. While making a phone call, display is always on.
I tried to enable it in settings. Turned it on, rebooted my phone and nothing happened.
Also tried *#*#6484#*#* solution, and when I open proximity sensor, there are 'test' and 'error' buttons on the screen and I can't click anything.
Does anyone know how to fix this?
Click to expand...
Click to collapse
Hi , are you on miui global stock rom? Or custom rom?
I just had the same issue , but in my case , I recently opened the bootloader and installed xiaomi.eu rom, everything was working fine. I got notification of update ,I downloaded the update , but flash it thru TWRP , and then with the new update, the proximity was not working at all. Flash again the new rom, but wiping everything , and now works.

jonathan_jon said:
Hi , are you on miui global stock rom? Or custom rom?
I just had the same issue , but in my case , I recently opened the bootloader and installed xiaomi.eu rom, everything was working fine. I got notification of update ,I downloaded the update , but flash it thru TWRP , and then with the new update, the proximity was not working at all. Flash again the new rom, but wiping everything , and now works.
Click to expand...
Click to collapse
Is the EU rom that better?
I mean is there any plane to compare the known issues between the global and EU ?

I'm using the miui global 10.3.3.0 PFGEUXM and definitely have some "issues" with the proximity sensor.
I'm still trying to tie down the exact nature of the problem:
With a quick test, or doing calibration, it seems to work exactly as I would expect; the screen switches off as you approach closer than about 2 inches.
However during a long call I notice the display start to flash "on" frequently in the corner of my eye and soft keys can get inadvertently pressed.
It kinda feels like it gets worse during the call, is it time or perhaps the phone warming up in my hand? Not sure.

hi @All!
is there still no permanent solution for fixing proximity bug?
its really annoying and making me crazy....
even after making it working again using quicktune app - doing one call it is broken again

fasty said:
I'm using the miui global 10.3.3.0 PFGEUXM and definitely have some "issues" with the proximity sensor.
I'm still trying to tie down the exact nature of the problem:
With a quick test, or doing calibration, it seems to work exactly as I would expect; the screen switches off as you approach closer than about 2 inches.
However during a long call I notice the display start to flash "on" frequently in the corner of my eye and soft keys can get inadvertently pressed.
It kinda feels like it gets worse during the call, is it time or perhaps the phone warming up in my hand? Not sure.
Click to expand...
Click to collapse
Exactly what i've experienced.
Super annoying when you accidentally hang up during a call.
It happend countless times so far.
I'm on eu beta btw.
Wish there would be a solution.. . But afaik proximity is even more bugged in non miui custom roms.

I had this problem to. my proximity sensor what not responding at all. I thought it was defective because the calibration was not working to.
Then i went to the system update settings, downloaded the latest package and flashed it. After reflashing it started working with no problem at all.

Factory reset did the trick for me. Working normally now.

Install Quick Tuneup. Then do Sensor Celebration & Restart your device twice.

Two solutions
Fortis10 said:
Hi.
I have problem with proximity sensor. While making a phone call, display is always on.
I tried to enable it in settings. Turned it on, rebooted my phone and nothing happened.
Also tried *#*#6484#*#* solution, and when I open proximity sensor, there are 'test' and 'error' buttons on the screen and I can't click anything.
Does anyone know how to fix this?
Click to expand...
Click to collapse
It turns out that the problem is because MIUI does not activate the proximity sensor when the smartphone is turning on.
To force MIUI to ALWAYS activate the sensor at each start, we can do two things:
1- Always have "Automatic brightness" activated
2- Activate the "Pocket mode" (the best choice)
After applying one of these situations, it is necessary to restart the phone.
Only by activating the pocket mode it is no longer necessary to have automatic brightness activated all the time.
In the video I show how to activate the "pocket mode"
w w w . youtube.com/watch?v=2dfrqmH02O8
I published this solution in a forum in my country (Colombia).
w w w . laneros.com/temas/soluci%C3%B3n-sensor-de-proximidad-xiaomi.239997
I don't speak English, I had to use the google translator, sorry for any translation error.

2- Activate the "Pocket mode" (the best choice)
After applying one of these situations said:
KMILO_PARRA is a KING .........................
above is proof to SOLVE the Proximity Sensor no reaction in my Redmi Note 7.
I was having lots of TASKER Profile depending on whether or not Proximity Sensor is covered.
I found all those Profiles no more function due to the issue after I believe OTA to Global rom the latest ( August-2019 )
Thanks again to KMILO_PARRA
Click to expand...
Click to collapse

Actually, the proximity sensor for Redmi Note 7 isn't in the "usual" top-center position, it's a little bit on the top-right edge (if you watch the phone "against the light" you can actually see a small dot on that side).
If you're calling\responding try to put your ear at that angle, you'll never have those problem anymore.
I know it seems crazy, and of course the first times could be "unusual" to put the ear there, but it actually worked out flawlessly for me.

Mr
Quaresma_7 said:
Obviously the proximity sensor is at fault. Enter the menu using the code mentioned above, then press the menu/options button and select Calibrate proximity sensor. Once you're there, hold your hand over the proximity sensor (to the right of the front camera) and tap the Calibrate button. That's one thing that could fix it.
Failing that, go to incoming call settings and turn off the proximity sensor (turn off screen in call). Restart your phone, go to the same toggle and turn it on.
If neither of these works, you likely have a faulty piece of hardware. Your last option is to have the phone repaired or try a different kernel/ROM.
Click to expand...
Click to collapse
Thanks.....
It works for me

Hi guys,
I have made a little workaround, using the suggestion of @KMILO_PARRA user. (pocket)
https://taskerprofilecenter.blogspot.com/2019/09/project-proximity-sensor-workaround-for.html
This is mainly for Tasker users, but I have generated an APK to be installed too. So any user can use it. But what is needed, by now, is root, as it needs to write to Settings table.
Please, report me back if it does the job or not.
Note1: For those users that don't know how Tasker works, just install the app, and give it root permissions, and allow Write System Settings permission (Android option). I recommend you to not set it as an app to be killed from the OS using the battery optimization, as it could be killed. It acts on every shutdown and device boot.
Note2: It will generate two permanent notifications: Place holder, and the one that is the mini-Tasker code monitor (required). Just, disable the Place holder one, as described in the same notification (click on it), and disable notifications completely for the installed app to get rid of the last one.
---------- Post added at 12:44 AM ---------- Previous post was at 12:31 AM ----------
What it does exactly?
Well, as I explained on my web, it just changes the value (0/1) from the 'enable_screen_on_proximity_sensor' Global Settings table, that makes the pocket option to be toggleable in an automated way.
So, be sure not to use that option as a daily one, as the project/app uses it to allow the sensor be available at startup. And do not forget that you will need root too! Sorry.
What to download if I don't know what Tasker is?
You will only have to download the APK from the 'Kid App (APK)' link, provided under the 'DOWNLOAD' section. Nothing else.
If you know Tasker, you will know what to do.
Does it work really?
I'm currently testing this workaround, but as I could see, at least on my device (lavender too), seems to be working as expected. But needs to be tested a little more.
So, if it does not what it's intented for, please, report it me back.
After installing the app, giving root permissions, and allow it to modify system settings, reboot the device to take it effect.