I am running 3 Helix 12 g2's and recently updated one of them so i could upload a map too it off the humminbird app. When I updated the software my 2 console units started losing the transducer when i would get on pad. When I get off pad my units kinda freeze up and show a blurry slow moving screen of what I had before. Usually after a few minutes it will pick it back up again and start working fine. I thought maybe it was because I had only updated the software in one unit, so I updated them all. I am still getting the same issue. Is there anywhere to get old software updates? I want to go back to an older software version to see if my problem goes away. Thank you!