My pc before my phone easily recognized Motorala EM25 after a while I stop rarely admit to, I plugged in thousands of ways and did not recognize him, but the battery load of, well now I have a cell change and when LG GS500 recognizes teaching and then I get that does not recognize it, when I put my p `c, leaving the innocent just plug it right there and then goes out, it feels as if the port or cable, but as it is possible that the same happened to the other phone, and I do not think q is the entrance to the pc, and when I use the flash drive I have no problem, it will be? AYUDAAAAAAAAAAA