upgrade my nuvi 3597

Hi I just upgraded my Nuvi 3597 with the Driveluxe 50.

So far there are some things that I miss from previous one but the new ones of the Driveluxe seem better.

The main thing here is that I had a microSD with some unlocked maps, Garmin South America, Europe and the CityXpress for some cities.

When I plugin the memory inside the new GPS I got a damaged maps alert.

Can anyone help me with this?

Thanks