@Dasilvarsa after reading the whole thread i managed to install the voices on the device with success!
@Neil I took your idea, and copy the map to the device. It worked perfect.
@lolypop I have an almost 500mb map, i guess it is working for this maps size.

Now the GPS is working fine and with maps in Internal Memory. Bad news is no matter what i do, USB connection doesn't work. I don't care now as the SD card update was a great method and GPS charges fine so, thanks everyone!! You just saved my GPS :D