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hi guyz!!!!!! i have an issue with my phone and i hope to help me
after my new update '.201' on xperia sp ,everytime i call to someone,my screen turns black,so i cant use my keyboard or loudspeaker and the most , if i want to press a number to put card i cant .....so, anyone can help me? thank u 
What was the result of testing the proximity sensor?
im sorry...what ? :$
You must have missed my reply of las Saturday
During a call it is designed that the screen goes off while the 'phone is against your ear (to reduce battery drain and prevent inadvertant button presses). Do you have some sort of case or screen protector that is obstructing the Proximity Sensor which is just left of the speaker mesh at the top of the 'phone?
There is a test for the Proximity Sensor. In the dialler enter *#*#7378423#*#* that gets you to Service Test. Under this option, near the bottom of the list, is Proximity Sensor, once selected the sensor status should change from off to on when covering the top part of the screen.
Dave
ooohh that was u!!!!i didnt miss...i pressed it, and it show me 4 things, but i understood wrong and my sp return to original settings, did tempering
I got the name wrong, in the service tests menu it is called "Proximity Switch" there is no proximity sensor option for the X-SP. But same effect, it should change from off to on when the top of the screen is covered.
ok my friend!!!i will try it !! thank u for help again

what if you press power button during call?
is it turn on your screen?
well,it didnt work 😕
Then it seems you have a fault with the proximity switch. Suggest you return it to Sony for repair.