First disappointment on amazon!

From all the reviews I've read on various models, I opted for the version "signature" Hoping to have a meter that works .. Alas this is not the case!
It is true that the feelings are terrible being beginner, but I liked a meter that works just to learn my progressions and compare scores with friends ...
Will there a way to fix this counter ?? I feel it lacks bcp not to operate because I managed to see (1 time) 3000tr / min, it must operate randomly and it does not keep records nonplus. A small disappointment so especially since the investigative CD was received broken !!