It seems that my transducer stopped working correctly cause I only get a black and white screen without any images. I get water temps. and the dept. flashes on the screen but no images. Without the transducer plugged into the unit it goes into demo mode and the unit demos fine but when the transducer is plugged in it doesnt work correct. I updated the software after the unit wasn't correct but that also didn't help. Any info. would be really appreciated. Thanks.