i Just installed the Taiwan map img files ( the main img for mapset and the second img was address search ) after unlocking them with gimgunlock into a garmin Nuvi 50lm. Although after extracting the exe file there was a 3D img file, i did not copy that one cause on Garmin website it says Nuvi 50 doesnt have that capability. So i installed only additionally the JCV folder . The map was selectable under system settings inside the Nuvi 50LM and when i wanted to select Where to go , address, i couldn't select the COUNTRY to TAIWAN, because i guess the map files are all only in chinese. So if you would simply write TAIWAN with english characters it won't find it. But maybe if i could write it in chinese it would. Just wanted to clarify. If i did something wrong please let me know.