Proximity sensor (&Recalibration Tool) not working anymore with Android 6

Kalibration sensor malfunctioning again…
How can this be fixed axap please?

I cannot acces voicemail because numberpad and othdr options during call are not accesible due to black screen… Pretry annoying

I had the proximity problem on the 5 version, but fixed it using the calibration tool. After the update to 6 the problem is back. Please help us! Groetjes Marika & Elina & papa

A temporary workaround for that is to dial but not put the phone next to your ear, just use it on speaker.

Interestingly, it seems to be working ok though if I am on a call using whatsapp.

I had the same problem with 5.1 but was very happy with the Proximity sensor tool that FP programmed into the maintenance section. It has been working perfect since. After updating to Android 6.0 the problems arose again: black screen during phone calls even before I move the phone to my ear. For now, cleaning the proximity sensor glass helped, but I would be very happy if the calibration tool could be up and running again.

Many thanks in advance!

I also have the same problem. The proximity sensor worked fine with recalibration under Android 5.1, but after updating to 6.0 recalibration no longer helps. Screen is always black during calls.

Same here, With Android 5.1 I was able to calibrate the proximity sensor through maintenance. Now I repeat the process and nothing changes. Hopefully FP will be able to fix this very annoying problem for those of us who use the phone (and keyboard) often.

Same problem for me… When I call someone, I get the black screen problem. Calibrate the proximity sensor two times, and the problem is always there. What can we do?

Same here… I’ll try to clean the backside…
I already success passing the second step of the calibration tool by cleaning very well the frontside of the captor.

Yep, same here since the update to Android 6.0 - screen goes blank when voice calling which makes it impossible to hang up or to navigate an automated telephone system. interestingly, i also get a blank screen when playing a voice message in whatsapp, which i don’t recall happening before.

like everyone above I have tried recalibrating the proximity sensor several times, as this worked with 5.1, and it seems to work the same as before, but to no avail as the problem remains. rebooting seems the only way to end a call or stop listening to a message.

frustrating to say the least, as the unit is now basically useless as a phone, and especially as this had been a problem with the old OS! I’m sure you’re working on it, though I can’t see any reply from official FP people on this thread…

Good luck fixing it, and hurry please!

edit - I wandered over to the bugtracker for Fairphone Android 6.0 and this wasn’t listed (that I could see). I have created an issue, if this is also a problem for you maybe you could upvote it? here’s the link:

People here are referring to cleaning the proximity sensor glass, can someone tell me where that is exactly? Is there a visual specification of the phone somewhere on the website? I couldn’t find any. Thanks!

Same problem here. Proximity sensor not working since updating to Android 6, and re-calibration utility useless. Must use the right-hand button to finish telephone conversations. Hoping to get as soon as possible a fix.

Ok since many people here don’t seem to remember that recalibrating the proximity sensor is not all there is to it, or don’t know how to clean the glass in front of the sensor:

###Here is the official troubleshooting tool

Go to > Calls > My display stays black (or on) during or after calls
and go through the whole guide and follow every suggestion there.


I have the same problem now after the upgrade . I have followed the official troubleshoot, it resets temporarily the sensor but as soon as I make a new call it get blocked again.
I really think it is a new problem linked with the upgrade.


I had the same issue. The display stays black during a call. The sensor tool had no effect. After a view times the sensor tool fails with step two. I’ve been trying a lot and also restarted the phone.
In the end: For me it worked to remove the display and clean the glass for the sensor from inside. It was quite a bit dirty.
After that I cloud recalibrate, restart and everything was fine. It worked like before. :slight_smile:



@fabio1 I removed your duplicate post.

It’s still not clear to me if you actually opened up the phone and cleaned it from the inside, since the troubleshooting tool finishes if after recalibrating you say “yes it works (for now)”.

As long as there is dust before the sensor the recalibration won’t work.

Yes. I have also opened the phone, removed the screen and cleaned the sensor from the inside (and then retried the calibration)
No change, the sensor still gets blocked after each call.

Yes there is actually a regression with Android 6 regarding the proximity sensor and the calibration :frowning: .
The calibration data is not taken into account and hence you are going back to the “old” behaviour if you had to calibrate in the first place.

  • Re-calibrating the proximity sensor will not solve the problem.
  • As pointed out by @paulakreuzer , cleaning the lens on the Display Module has always been a nice trick to improve the sensor behaviour without re-calibrating.

We have identified the root cause - hopefully we will be able to fix that soon in a system update. Sorry for the trouble.

Edit 20167-05-19:
As pointed out by @Chris_R, the next update (available in the beta section now) features the complete proximity sensor fix :sunglasses:


I agree that this is super annoying. How do I make calls in the meantime without having to reset the device each time someone doesn’t pick up?? Can’t even use quick menus at the moment… Please fix this as soon as possible, it’s kind of a deal breaker for me.

You could use the power button to switch off the screen before you put the phone to your ear and after the call to switch it on again.