Sat Nav problem

pedrothefish

when you switch on and get the map up, on the bottom left hand corner there are two indicators and a car, tap on that and it goes into
"quick menu"
in bottom right hand corner of that screen it says "GPS" click on that and it will take you into GPS data.
you can then see how its picking up the satellites, it should be showing "high"
there are red yellow and green dots. you want more green dots than the others. that should show you that the satellite data is ok.