2 years ago my left side quit working on my helix 12 g2n. went through all of their trouble shooting including trying a working transducer. and the left side still wasn't working at all. humminbird said it was in the unit and had me send it in for repair. well ups loses it for over a month and half! total cluster and I was dumb not to insure it. well I finally got it back from ups at end of the season. plus I bought a g4n. so decided not to mess with it until I ended up getting 360 last year so now I have a transducer. I didn't think it was worth it if I had to buy a new transducer.
so today I was on the phone with humminbird cause I want to repair it. the lady kept saying stuff like it's non refundable and likely it's not the unit cause it should be a transducer. the guys at humminbird 2 years ago said its the unit and something failed inside it. it's even making a clicking sound when its on. I'm crossing my fingers i get a g4n back but that's not my luck!
so have you guys heard of the units going bad on side imaging? it's damn frustrating