my mpx had 8 gigas, but it did not play fm, no record, the I actualized from 3.5.35 to 3.5.37, but it¨s screen turned gray.
My pc did not recognized it, but thanks to tadad1 my pc is recognizing it.

now I know, i must to find the correct firmware, but the big problem is thah may mpx now is 100 megas only, how can i return it to 8 gigas?