You will have to select the specific file on the chip that has the lake you are fishing. My hotmaps chip has 4 or 5 files, thankfully Kerr and Falls are on the same file. Basically trial and error, pick a file, then use your crosshairs to pick the lake you want on the map. If it has contour lines when you zoom in, you got the right file, if not, pick another one and try again. I think it was the 2nd or 3rd file on my chip.

Lowrance units default to the Lowrance base map, if you don't go in and pick a file on the chip, you will never get it.

want structure and cover info.- www.bcfishingmaps.com

I installed a Navionics chip on my 332C and love it. There is so much detail from the stock maps it is unbeleivable. You do have to select which state to use for the upgraded maps, but that is no problem. Enjoy, I did/do.