Unlocked, works on another Garmin unit - older, works on garmin mobile xt, tried with gmapsupp.img, Adria.img, cause at newer Garmin units, it's not importan name of img files, but same thing on this unit, can't see unlocked img from sd car, or see it like locked img and show message "can't unlock maps".

I repeat this is combination:

1. On internal memory in .System folder is gmapprom.img - original map img from Garmin, it came with this 2012 garmin nuvi unit

2. On SD card in Map folder, tried many combination like gmapsupp.img, Adria.img, didn't try AdriaRoute4.10.img, but i think name isn't important in this unit?

For some reason it sees AR map like locked!?

Map is created from MapSource, unlocked Mapsource of AR 4.10!?

Very strange thing... Or maybe this combination original map + unlocked map can't work together ?