I have just swapped my RNS510 for a DAB version P/N 1T0 035 686 C.
I can get into the secret menu but it does not show the HW Vehicle info (0x###) like my old 510 did so I'm not sure what firmware I can install.
What am I doing wrong or will it not show that?
Also, the sat nav doesn't give an option to enter postcodes, it starts with wanting the country then town, then street, I gave up then cause I didn't have the street name of where I was going, only the postcode