Mine did the same thing keep clicking/opening the file until it show a little piece of paper next to the file . Once you see the white paper nx to the file move that file to your sd card then it will upload the 4.0 update.
Does anybody know what the 4.0 update for the non touch unit will improve. Mine needs updating.
Go to Lowrance , support, downloads. Click on download and it will tell you what it updates.
I guess I will check or have it updated. My Gen2 touch won't give me that blue channel marker line on some of the lakes that I fish but my Gen3 gives it to me on all the lakes, they are both insight units.
One good thing I discovered is the overlay for time, temp ect moved. Now pull up screen you want touch power button. This will bring up access to overlay menu Better than the blue bar I always had trouble scrolling down.
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