Quote Originally Posted by Alex Choo View Post
hi experts,

I am currently owning a Garmin 3790, whilst updating the map, I found that I need to put 2 files in the ASR folder which is supposed to be under .System folder (hidden). When I do a "Show all hidden folders", I did not see the .System folder in my Garmin 3790. What should I do next?
You need to also put the GPS in Mass Storage Mode.

I don't have a 3790 but here's how it's done on a similar model. Try this!

To get into Mass storage mode....
go to the GPS speaker/volume screen and hold upper Right Hand corner ~10 sec until you get a hidden menu
from the pop-up menu select "MTP Settings"
There you should be able to a select Mass Storage Mode option
The device now looks like normal USB drive