Indicates that the map labels and search functionality are in Cyrillic script.
If you do not have a paid subscription, OpenStreetMap (OSM) provides frequently updated, free Garmin-compatible maps for Bulgaria. Download File Geotrade 2020 Q2 TOPO CITY CYR.rar
Downloading this from a third-party source (implied by the .rar file name and "Download File" prefix) carries significant risks: Indicates that the map labels and search functionality