Hello,
New poster here and I am starting into this so please bear with me. I have done a lot of reading and I am a litle lost on something.

Here is my situation. I am only dealing with Marine maps G2 digital.
1. An original sd card has two files on it for the visual G2 maps the img file and the unl file.

2. Now i have downloaded a map that I have copied to a blank SD card but there is only one file.

3. How do i find or create the second file unl to put on the SD card so that it will work properly?

New here and just trying to learn.. Thank you for all your help and what a great site.

Here is the issue that I seem to have using this app. Is that what do I select from the pull down from in this utility for the GPSMAP model? This is the BIG issue, do not know what to select here for Vision G2 cards for GPSMAP Marine units?

Also, where do I find, determine or figure out the SD cards serial # from? I mean do I need to copy the serial of an original Garmin Vision G2? Sorry to sound stupid, but if I have a new SD card, what do I use for a serail#?
I found the serial # to the gps so I will try that first, but I would like to figure out the SD way as well.

I am itching to try this out... Thanks for the help.


Thank you catymag
stimpy2300