I see there was an update (noticed that UI of p-sensor changed and screen goes off now when calling ), it is working correctly for me now, thank you.

Like I said, I blocked the light and tried different distances when calculating max value (got PS values between 6k and 20k). And non blocked for min values (about 200). Then I tried pressing calibrate button covered and not covered, but all say calibrati on failed. Did try to change order of calcul...

I tried some different max values (from 30k - 0,5 cm away to 100 - no cover) but they all get result failed. 

Yes the *#87# and *#9646633# did open a menu, but like I said, there was no option to calibrate distance (added screenshots)

I have similar issue as the OP, proximity sensor dosen't work/sense. I have BV 9900 (not pro) and I can't seem to find distance calibration I tried *#87* and *#9646633# but didn't find the setting (and *#*#33#*#* which dosen't do anything on this phone). Am I missing something or...?