Daer Ingbrzy,
finaly it is a hardware issue, my other M2 is detected fine as i told you
i thaught that can be something from the rom (wrong installation ??)
but in fact, the problem is from the connector itself because when i play a little bit up and down
the M2 is recognized
so or i have some dust in the connector or too much play inside,
but the strange is that the phone is powered when is pluged,
i think that the pin for the detection is not dammaged