Hello all,
Hope you are doing well.
In the past, both with Nuvi 3597 and Drive 61, I could just put TopoActive Europe Maps on a sdcard (either from my Forerunner 965 or from internet) and use it for light offroad. Same as OSM Topo maps like frikart.no or maprando.
On the Nuvi 3597 I am not sure if I patched the device, I think not.
On the Drive 61 I know I patched (only ...