burg3r wrote:

I had the same problem. After I reset the calibration it worked. After that in engineer mode it worked perfect.

I hope this help u guys

Could you explain this in detail? How do you reset the calibration?

admin wrote:

In the dialing interface, input the *#87#*, and try to test the calibration. If you success, there will be a "pass"; If not, you should change another sensor.

I've gone into "Single Test" -> "Calibration" and it says "FAIL". Does it mean that I need a replacement for the proximity sensor?

It only worked after cleared the configuration in engineer mode.

Going there if you try to call *#9646633#

burg3r wrote:

It only worked after cleared the the configuration in engineer mode.

Going there if you try to call *#9646633#

Thanks for your feedback