my Binatone carrera sat nav has a fatal error how do i fix?

I want to put tomtom maps onto my binatone sat nav?

how can i fix my binatone sat nav ?

Will not navigate ?

frozen Binatone sat nav?

Binatone A430 wont navigate?

Sat nav won't work?

My binatone b430 does not turn on?

my binatone x350?

upgrade software sat nav binatone f350?

converting from old location under new owner location?

binatone a350?

my sat nav wont connect to grs why?