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[Q] How to calibrate/ fix the proximity sensor of MTK 6589 [Konka V981 rebrand]

Hi, I've been having some problems with my proximity sensor lately.. I have only noticed it during my first call last January in which my girlfriend called me and upon finish I checked my screen to see that it's still black, tried to power on/ power off, but only the capacitive buttons would light not the screen.
I have used Phone tester to check my proximity sensor and tried it.. It says Waiting... then I put my finger on top of it, it says Near.. After I remove my finger, it's still stuck on Near.. So clearly , my proximity sensor is operational but is at fault or bugged.
Bottom line is, does anyone know how to calibrate or fix my issue? I have a Konka V981 phone, rebranded here in my country to what's now called Cosmos X2.. With an MTK 6589 chipset.
Thank you in advance to whoever could help me solve my problem. Hoping to find the solution from the professionals in this forum and/ or site.

custom rom
EnzoDC said:
Hi, I've been having some problems with my proximity sensor lately.. I have only noticed it during my first call last January in which my girlfriend called me and upon finish I checked my screen to see that it's still black, tried to power on/ power off, but only the capacitive buttons would light not the screen.
I have used Phone tester to check my proximity sensor and tried it.. It says Waiting... then I put my finger on top of it, it says Near.. After I remove my finger, it's still stuck on Near.. So clearly , my proximity sensor is operational but is at fault or bugged.
Bottom line is, does anyone know how to calibrate or fix my issue? I have a Konka V981 phone, rebranded here in my country to what's now called Cosmos X2.. With an MTK 6589 chipset.
Thank you in advance to whoever could help me solve my problem. Hoping to find the solution from the professionals in this forum and/ or site.
Click to expand...
Click to collapse
try flashing a custom rom

Oh I forgot to mention that I've flashed multiple ROMs onto my unit but the problem still persists... I've tried about 6 roms and all of them have the same output, my proximity sensor is still at fault.. From Waiting... to Near... and never going back to Far.. It should be, or the normal should be near upon putting my finger or something in front of it, to far, removing the object, or my finger from it..
I tried a Note 3 rom, whereas I noticed that the proximity sensor wasnt needed for call sessions, whereas I could just power off power on when Im on call so my face wont randomly tap the screen and make a mess.. But I don't want to keep the Note 3 rom, so I flashed back to our modified Stockrom Android 4.2.2.. And then the problem came back..
If only someone could help me calibrate or at most turn it off.. Id be grateful.. But Id be more grateful if we could just calibrate it rather than turning it off

proxymity sensor problem

Hi, I have noticed a problem on my M2: during call the display is turning on and off and i am pressing the display with my ears. when i have tried to put my finger on the sensor, the screen went black, but placing my finger a few millimetres over the sensor turned it on again. i have also noticed a strange faint pulsing red light coming out of the proxymity sensor during call.
do you think its a hw problem, or is it something what may be fixed via an update?

How to fix proximity sensor bug on xm2
molnartibor said:
Hi, I have noticed a problem on my M2: during call the display is turning on and off and i am pressing the display with my ears. when i have tried to put my finger on the sensor, the screen went black, but placing my finger a few millimetres over the sensor turned it on again. i have also noticed a strange faint pulsing red light coming out of the proxymity sensor during call.
do you think its a hw problem, or is it something what may be fixed via an update?
Click to expand...
Click to collapse
Hi, I had the same problem with you before.
then I fixed it, by doing this following steps :
1. Removing the screen protector(was not the default one you sometimes get with the phone), just check you don’t lose your warranty
and then, this is the stupid ( but magic ) steps:
2. Switch off the phone
3. Press firmly on the entire top of the phone for about 3-4seconds (top part of the screen, left side from your speaker)
4. Switch back on
5. Once started up, press again on the top part of the screen.
6. Finally you can try to dial *#*#7378423#*#* for check your Proximity Sensor is ON or OFF.
source: sony talk forum *sorry I can't link it, because I'm newbie*

artazael said:
Hi, I had the same problem with you before.
then I fixed it, by doing this following steps :
1. Removing the screen protector(was not the default one you sometimes get with the phone), just check you don’t lose your warranty
and then, this is the stupid ( but magic ) steps:
2. Switch off the phone
3. Press firmly on the entire top of the phone for about 3-4seconds (top part of the screen, left side from your speaker)
4. Switch back on
5. Once started up, press again on the top part of the screen.
6. Finally you can try to dial *#*#7378423#*#* for check your Proximity Sensor is ON or OFF.
source: sony talk forum *sorry I can't link it, because I'm newbie*
Click to expand...
Click to collapse
Profimity Sensor i see OFF, I can not change it.

[Q] Proximity sensor troubles, can it be disabled?

Lately, my proximity sensor has been giving me trouble - at least, I think it's the proximity sensor. The symptoms:
1) I can't unlock the phone unless there is enough ambient light. Generally not a problem, but a little inconvenient.
2) As soon as I start a call, the screen goes black and will not turn back on no matter what, making it impossible to bring up the dialpad or hang up. I've enabled the "power button to hang up" setting, but it doesn't seem to be doing anything. The only way to end a call is to wait for the other side to hang up or remove the battery. The former is fine if I'm actually talking to a person, but if I get into an auto-attendant tree I'm screwed. It happens regardless of whether I'm holding the phone to my face or not. Flat on a table, same behavior.
The phone is rooted, are there any apps or things I can do to verify that it's the proximity sensor? Is there any way to just disable the proximity sensor in software?

Use the hidden menu (3845#*850#) and go into device test.
There is a proximity sensor test there. As you move your hand near the sensor it wall say near and as you move it away it will give you a light reading.

Thanks - the top always says "Proximity: NEAR". The bottom one says "Light: off" If I wave my hand hear the sensor, it turns blue and give me a reading hovering around 10. Closer to the phone and it's red and gives me a lower reading. Holding my finger on the phone, completely blocking the sensor, gives me the "Light: off" reading again.
I'm not quite sure what to make of that.

I've had similar problems with my international version G3. Both times I have had to take off the back cover, remove the various screws around the top half of the phone, pull off the plastic casing, and then use compressed air to spray out the area around the proximity sensor. After this the phone works fine for a month or so.
Somehow dust seems to be getting into the phone quite easily. I'm wondering if the area around the speaker grill is not fully sealed.

I finally took the time to disassemble my phone and sure enough, the proximity sensor was filthy. A couple seconds with a can of compressed air and things seem to be back to normal.
Thanks!

I have a lg g stylo the sensor is so sensitive .. I wave my hand over my phone and the screen goes black I am trying to figure out how to turn it off ..

eriqjaffe said:
Lately, my proximity sensor has been giving me trouble - at least, I think it's the proximity sensor. The symptoms:
1) I can't unlock the phone unless there is enough ambient light. Generally not a problem, but a little inconvenient.
2) As soon as I start a call, the screen goes black and will not turn back on no matter what, making it impossible to bring up the dialpad or hang up. I've enabled the "power button to hang up" setting, but it doesn't seem to be doing anything. The only way to end a call is to wait for the other side to hang up or remove the battery. The former is fine if I'm actually talking to a person, but if I get into an auto-attendant tree I'm screwed. It happens regardless of whether I'm holding the phone to my face or not. Flat on a table, same behavior.
The phone is rooted, are there any apps or things I can do to verify that it's the proximity sensor? Is there any way to just disable the proximity sensor in software?
Click to expand...
Click to collapse
If it does become a problem there is an exposed module just for diabling prox sensor

Proximity Sensor Issue Solved
Just opened the Mobile yesterday night, and after a little hectic; i had managed to clean the dust from board sensors.
Working Perfect now, like a charm !

[FIX] Proximity Sensor stuck fix.

Solution on 2nd post.
Hi.
Lately I'm having problems with proximity sensor.
1. During phone calls, after getting phone to my ear, screen turns off and that's fine, but after ending the call screen never wakes up. I have to press the Power button to wake up the screen.
2. After pressing the power button, screen turns off and AOD screen shows up, that's ok, but after putting it to pocket or after covering the proximity sensor with hand and taking it off the AOD screen doesn't show up. It's black screen always. I have to wake up the phone and off for AOD screen to show up.
I was testing the proximity sensor with different testing apps and it is recognizing near proximity but it never recognize that there is nothing near anymore. Ex.: during testing I cover the proximity with hand and it is recognizing it, but when I take my hand off, proximity sensor is still saying there is something near.
Problems started some time ago occasionally but since yesterday it always like that. It started on Android 10. Downgraded to 9 (ver 1.9 from zte de site) and it was ok for 2 weeks like. Yet it started to get stuck for good, even upgrading back to Android 10 (v 2.4) didn't help.
I looked where the sensor is, left side from earpiece and I swear I could see some dust under the glass, but since the phone is waterproof (IP68) how there could be any dust inside? I was shaking the phone to get rid of the dust from the proximity sensor to no avail, sensor is still stuck.
No glass protector applied, no any cover.
What do you guys think? Should I get RMA for it? Or s there anything can be done? Anyone else having these problems?

FIX for proximity sensor getting stuck/not working properly
Found fix by myself.
Proximity sensor in my case got some dust in it or it de-calibrated itself. If proximity sensor is broken on hardware level, probably this solution won't work. Yet, you are free to try it anyway.
If your proximity sensor de-calibrated somehow or got dust on it and it is misbehaving, do the following:
1. Go to Phone app, enter:
Code:
*983*673636#
to enable EMODE (self-testing app), toast info about enabling EMODE will be shown,
2. In the Phone app enter:
Code:
*983*0#
to start the EMODE, menu for various test will be shown,
3. Go to SENSOR TEST
4. Cover the proximity sensor with your hand ? (upper side of the phone ), test will say something like PASS in green color),
5. Swipe to the bottom of the menu, place your phone flat on the table in not so bright environment and hit CALIBRATE.
6. Your sensors are now re-calibrated and proximity sensor will work like new, even if it is dusted.
7. If you want to disable EMODE, go back to Phone app and enter
Code:
*983*2567336#
but refrain from doing so, if you want to run EMODE again in case of any of sensors misbehaving again and wanting to recalibrate later.
That's it, my proximity sensor is working again like new.
Sidenote: if there is dust inside the phone, phone is not so waterproof (IP68) after all. Just be careful with water with it

mancom said:
FIX for proximity sensor getting stuck/not working properly
Found fix by myself.
Proximity sensor in my case got some dust in it or it de-calibrated itself. If proximity sensor is broken on hardware level, probably this solution won't work. Yet, you are free to try it anyway.
If your proximity sensor de-calibrated somehow or got dust on it and it is misbehaving, do the following:
1. Go to Phone app, enter:
Code:
*983*673636#
to enable EMODE (self-testing app), toast info about enabling EMODE will be shown,
2. In the Phone app enter:
Code:
*983*0#
to start the EMODE, menu for various test will be shown,
3. Go to SENSOR TEST
4. Cover the proximity sensor with your hand ? (upper side of the phone ), test will say something like PASS in green color),
5. Swipe to the bottom of the menu, place your phone flat on the table in not so bright environment and hit CALIBRATE.
6. Your sensors are now re-calibrated and proximity sensor will work like new, even if it is dusted.
7. If you want to disable EMODE, go back to Phone app and enter
Code:
*983*2567336#
but refrain from doing so, if you want to run EMODE again in case of any of sensors misbehaving again and wanting to recalibrate later.
That's it, my proximity sensor is working again like new.
Sidenote: if there is dust inside the phone, phone is not so waterproof (IP68) after all. Just be careful with water with it
Click to expand...
Click to collapse
Hey! I have the same problem with the proximity sensor and even though I did the same that you say, nothing changed.
Do you any other solution?

CharlyNews said:
Hey! I have the same problem with the proximity sensor and even though I did the same that you say, nothing changed.
Do you any other solution?
Click to expand...
Click to collapse
Sorry to hear that. I have no other solution. Take it to service center.

Proximity sensor

Good morning, i have a Note 20 Ultra exynos version and when i test the proximity sensor i have no response. It's possible ??
Thanks

yes, it is implemented differently. it works fine with apps that support it

What do you mean by "test"?
When you're on a phone call it should turn off the screen if you cover the sensor.

No if i cover the entire note the screen is always on.

trismet said:
No if i cover the entire note the screen is always on.
Click to expand...
Click to collapse
Using the mic not in speaker phone mode?
If so it sounds like it's not working... phone screen should go dark when it's against your face on a call.
Try clearing the system cache on the boot menu, this may fix it.
Try it in safe mode for the off chance a 3rd party is the cause.

When i try with a call it seems to work but after two or three attempts the screen remain on also if i close the cover..

trismet said:
No if i cover the entire note the screen is always on.
Click to expand...
Click to collapse
trismet said:
When i try with a call it seems to work but after two or three attempts the screen remain on also if i close the cover..
Click to expand...
Click to collapse
Not sure but that sounds like software.
You said cover as in a wallet case?
There may be a setting for that but if so I have no clue.
Doesn't sound like a normal operation unless it's a Samsung case and it's suppose to do that.
Don't think there's even a visible specific system apk for it. You could try clearing the Android Systems cache maybe data too but that may cause more trouble with lost settings... and end up worse off for the trouble.
On the note 10+ a small faint blinking circle is visible about a quarter inch to the right of the front cam cut out when the proximity sensor is active. Not flashing, not active.
If that helps you any...
Note: if it's active during a call and I trip it 2-4 times with a second or two spacing, the screen will remain off until I turn it back on.
This is normal operation.

Ok thaks a lot for your explanation..

I'm having the same issue which started today. Every time I put the phone up to my ear to place/ receive calls the proximity sensor isn't working and I'm pressing all random buttons accidentally with my cheek. I've turned my phone on and off to try to get it to work and no dice. It was working fine before today so I'm not sure what happened. I didn't drop my phone or anything. A google search showed this has been a problem since the S10 when Samsung embedded the sensor under the screen and dropped to turn on/ off this feature under call settings.
Advice anyone?

Try in safe mode. If it works there it's most likely a 3rd party app.
Was -anything- updated or just installed?
Did you change any settings?
Try a "hard" reboot and clear System Cache in boot menu.
Clear Android Systems cache.

blackhawk said:
Try a "hard" reboot and clear System Cache in boot menu.
Clear Android Systems cache.
Click to expand...
Click to collapse
Is a hard reboot restoring everything to factory settings? If not can you provide me the steps I need to complete to get there and If I need to back up everything and how to go about doing that? I'm a novice who's learning everyday so I appreciate your patience

dj24 said:
Is a hard reboot restoring everything to factory settings? If not can you provide me the steps I need to complete to get there and If I need to back up everything and how to go about doing that? I'm a novice who's learning everyday so I appreciate your patience
Click to expand...
Click to collapse
No! Not a hard reset!
Hard reboot simulates pulling the battery...

I think I got it to work again. Hard reboot I guess according to google is pressing the “Volume down” and Power / lock key for 10 to 20 seconds bypassing the options shown on the screen until the phone turns off by itself. I then pressed the volume up key and the power/ lock key until the android recovery menu came up on the screen. I then chose "wipe cache Partition" and rebooted the phone after that.
It seems to be working again and hope this helps anyone who starts encountering this problem like I did.

dj24 said:
Is a hard reboot restoring everything to factory settings? If not can you provide me the steps I need to complete to get there and If I need to back up everything and how to go about doing that? I'm a novice who's learning everyday so I appreciate your patience
Click to expand...
Click to collapse
dj24 said:
I think I got it to work again. Hard reboot I guess according to google is pressing the “Volume down” and Power / lock key for 10 to 20 seconds bypassing the options shown on the screen until the phone turns off by itself. I then pressed the volume up key and the power/ lock key until the android recovery menu came up on the screen. I then chose "wipe cache Partition" and rebooted the phone after that.
It seems to be working again and hope this helps anyone who starts encountering this problem like I did.
Click to expand...
Click to collapse
Clearing the System cache can fix a lot of Android voodoo gremlins. I clear mine regularly or if the Android is acting erratically.

Hello
I am the owner of a Note 20 Ultra starting today.
I previously had a Note 10 Plus, where the proximity sensor showed as a blinking white light near the front camera.
At Note 20 Ultra there is no sign of its presence, no blinking light. Is this normal? Can the real owners check and confirm?
I also checked with secret codes:
Using *#0*# and selecting Sensor opens a menu where I cant find any proximity sensor
Using *#77692# opens a window with proximity and light sensor; for proximity sensor I turn on and wave my hand over the front camera area, it vibrates and turns display green each time, but after several attempts (7-8) it stops working.
So, is this normal? It has a new algorithm or type of sensor?
Please check and confirm.
Thank you

ionutdicu said:
Hello
I am the owner of a Note 20 Ultra starting today.
I previously had a Note 10 Plus, where the proximity sensor showed as a blinking white light near the front camera.
At Note 20 Ultra there is no sign of its presence, no blinking light. Is this normal? Can the real owners check and confirm?
I also checked with secret codes:
Using *#0*# and selecting Sensor opens a menu where I cant find any proximity sensor
Using *#77692# opens a window with proximity and light sensor; for proximity sensor I turn on and wave my hand over the front camera area, it vibrates and turns display green each time, but after several attempts (7-8) it stops working.
So, is this normal? It has a new algorithm or type of sensor?
Please check and confirm.
Thank you
Click to expand...
Click to collapse
Its possible that there is no sensor, I have not done any research on this but it is possible to use front camera as proximity sensor. It would mean that the function would activate when you are on call and not on loudspeaker, it should not be tough to implement.

It has a discreet proximity sensor...
https://us.community.samsung.com/t5...ingerprint-and-proximity-sensors/td-p/1394254

blackhawk said:
It has a discreet proximity sensor...
https://us.community.samsung.com/t5...ingerprint-and-proximity-sensors/td-p/1394254
Click to expand...
Click to collapse
I have seen this article but it is useful only to locate the proximity sensor. But regarding how it is actually working, there are no details.
I was expecting something similar with Note 10 Plus but there was no blinking led/pixel to be found when having a call.
And honestly, I am not very impressed with its functioning. When using phone on left ear especially it skips activating many times.
Also, during a call (normally not on speaker), when I cover the top of the phone with my hand, the screen does not go black instantly (I must keep it covered about 3-4 seconds) but if I puck up the phone to my ear it seems to activate, which makes me think it has an algorythm that includes other sensors like gyroscope. Or maybe my proximity sensor is faulty... but as I said, if I test it with proper code, it seems to be present and work.... Which makes me thing it is a software problem.
So, I come back to my previous details and kindly ask other Note 20 Ultra users to replicate similar behaviour.
Thank you

My note 20 Ultra sensor works fine if the speaker is off. Turn the speaker on and the proximity sensor is disabled.

Try using this code in dialer.
*#77692# and then turn proximity sensor on and put hand over top part if it lits up green then it's working as it should. But if it remains white and nothing happens then there is an issue with sensor.
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