A40 proximity sensor problem - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hi
I have two a40 and i have problems with the proximity sensors
Whene i am calling the screen doesn't switch off.
I have installed the last update.
Could you help me?
Thanks

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[Q] Proximity sensor

Hi,
How proximity sensor should work in X10?
Apparently mine doesn't work.
While I talk screen is not blank and I wondering how to enable or adjust proximity sensor to disable touch screen during conversation.
Any ideas?
Cheers!
edit: never mind, i found solution forum.xda-developers.com/showthread.php?t=736654

[Q] Proximity sensor not working suddenly!!

Hi all
I bought a new Samasung galaxy note 3
and had some issues with it..
1) I had to switch the network mode from "auto connect- LTE/WCDMA/GSM" to "GSM only" to make calls work. So is that fine? Now the phone receives calls normally but just before dialing it gives a message..
2) Yesterday, the proximity sensor was working ( with the sticker on the screen). Today it stopped working and it doesn't turn off the screen during calls.. and air gestures are not working. I tried cleaning the screen over the sensor but it didn't work so what should I do? I did a factory reset to the phone before checking the sensor today, so did that affect the sensor in any way?
please help!
Thanks for whoever tries to help!

Proximity sensor not working for yu yureka.

Hi,
I have yu yureka Mobile phone and its rooted, but everything running well except Proximity Sensor.When I call/Receive Someone the Sensor doesn't work. Can you please Suggest how to Solve this problem.
Upgrade to Lolipop and calibrate the proximity sensor.
To calibrate the Proximity sensor open phone dialer and enter *#*#7769#*#* (aka *#*#PROX#*#*) and tap on START. When Calibration Good appears, exit. Done.
didnt help- *#*#7769#*#* didnt help fix the issue.
Proximity sensor still doesn't work
*#*#7769#*#*....do it 4-5 times....and reboot..clear all the data of dialer.. ..then reboot

Disabling the proximity sensor

Got my screen replaced at a local shop after it cracked.
But now the proximity sensor is not working properly as it always detects that it is covered.
Proximity testing apps show that the sensor always shows the value as 0.0 (covered).
can someone help me on how to disable the proximity sensor completely as i face black screen during calls and can't record/hang-up/put on speaker....
I'm rooted and running cosmic os 7.1.1 so xposed is not a solution
Need help disabling it.
:bump:

Proximity sensor issues

hi friends,
Any body having issues with proximity switch / sensor with asus zenfone max?
The problem is when the call is on in cellphone / whatsapp the screen goes blank and displays only when the call is terminated by other side.
Please guide me if anybody facing this issue and your experience
Proximity sensor issue
I have issues with this sensor.

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