Sorry, i am no expert but i do have this unit. All i can guess is to make sure the sideview cable is really pushed in all the way in the back of the unit....BUT if it wasnt plugged all the way in i am not sure if the unit would even let you go to the sideview screen? Garmin needs to make some kind of locking collars on these connections. I have never had an issue with my sideview beyond adjusting contrast or frequency to clear the view up a bit, so i am not sure what else to check. Hope you figure it out soon
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