Today I received my Xperia M5 phone. On the paper there was the same as I wrote above - mechanical repair and update of the firmware. I contacted service via email to ask about the detailed report after the repair. They've sent me a txt file with logs proving that the gsm thing is working perfectly.
They also wrote that these parts were exchanged: front camera, back camera, back cover of the phone, battery and one speaker. I don't know why they exchanged so many parts but it works fine so far.
Autofocus works perfecly now.
