I have another question
with a Drivetrack (2268) or Camper 770 (2684),
once patched they read the unlocked TOPO maps, no worries (even if the contour lines are really too thick, which is not very readable)

I tried 3 installations :
- on micro-SD card, Garmin / .img + Garmin / SQL / .db

- I also tried to put the .db in the Device / .Sytem / Sqlite / .db

- I also tried to put the .db in the Device / .System / SQL / .db

but the active routing does not work well, the route is wrong

Are these GPS compatible with the Active Routing function of Topo maps?

if yes how to have a correct installation?
or maybe adjustments to make on device ?