I wanted to know if you ? ever, this bobl? enters into an authorized repair shop fiat x routine maintenance is performed after the cutting, from the portal of the fiat is communicated that needs an update unit on the cold start, apparently means both in diagnosis and in the road test does not have any anomaly, but since? it is authorized workshop fiat, the update is executed as proposed, the updated control unit, starts a series of problems, on the road, a medium that has seghettamento to low very little torque, speed? maximum 90 km / h, in the diagnosis of mass air flow sensor is not working, at this point they decided to put back the original file since everything was working perfectly, but reloaded the old file, the means is not v? + in the bike, put again the updated one put in motion, but the music does not change,at this point called fiat x their not ? possible.. what do you think? this ? one of my curiosities?, place the two files that I have been forwarded the x *****.