I bet you are correct, and I hope anyone with this issue calls in to complain.

I had to fight to get Lowrance to even take me seriously when I reported software issues trying to use Navionics SonarChart Live feature on my new Hook2-5 Splitshot sonar. They finally had me send in my unit, which is ridiculous since you can reproduce the issue on any Hook2 with any Navionics+ card. Then they sent it back saying that they would report the "software anomaly" to the product manager and I "might get a software update but not soon". In the meantime all their advertisements still claim this is a working feature, which is BS (30-yr HW and SW dev engineer here).

I am so sick of Lowrance's "crappie" customer service, I am selling the unit and buying something else.