I have a Garmin Nuvi 42 LM that I purchased in Europe last year preloaded with maps for Southern Europe.
I went online to Garmin site, logged in and purchased map for UK and Ireland (City Navigator® Europe NT: U.K. and Ireland). I used Internet Explorer with the necessary Communicator Plugin to log in and download the map. The map downloaded but I cannot see it either on my device or on Garmin Express (or MapInstaller or Basecamp)
I have plenty of space on my Garmin Device (almost 2 GB and the map is only 351 MB) – so I tried first downloading on the device. Later, I inserted a micro SD card to the device and tried downloading on the card as well. Both times I got a message that download is complete. And I can see the files (D0391300A.img, D0391300A.gma, D0391300A.unl) downloaded to the /Garmin folder in my device
However I cannot see the map either in the device or in Garmin Express. Do I have to do anything further in order to be able to see the maps?