RNS 510 It doesn't save the mapa - GPS only with the DVD in

[elarvi]

Hi guys,

I have a 1T0035680H with a 3970 firmware RNS 510 with an European old map and when I tried to instal the last map version the old map disappears and the only way to use may gps i with the dvd map in.

It is like my HDD has been disappeared.

Do you have any idea?

Thanks in advance.