My problem: same device (Galaxy S9), but new Micro SD Card (containing a 1:1 copy of the old one - including the Android directory).
Now Navigator doesn't find either my Favourites/Routes or my Backup directories.
Today I could at least get one set of data back - by creating a new backup, finding it (in .../MapFactor Navigator Backups), deleting all files in that directory and copying the files from an older backup into it.
However, there must be an easier way - which is it?
J.
