City Navigator North America NT 2017.20

@llancman I believe without to be sure that your device support simple maps so you need only gmapprom.img but your device may have a limit of supported space of 2GB so it may not recognise this file almost 4GB.
You have to install the PC map version and then with mapinstall to create a smaller map with the regions that you need.

Hi,
Which of the JCV files would you recommend installing onto a Garmin 775T?

• D3060210A jcv_LaneAssistFull
  D3080210A jcv_LaneAssistMedium
  D3153210A jcv_FullScreen
  D3191200A jcv_LaneAssistPortraitFull
  D3192200A jcv_SplitScreen
  D3836160A jcv_Nuvi4x_5x_Android
  D5296070A jcv_nuvi6x

The unit is like this one https://buy.garmin.com/en-US/US/p/14925#specs.

Thanks