Activating Lowrance Hook 7 Reveal tps

[Diamondan]

For me, a bit embarrassed to ask this question. But this 77  year old can't activate his new Lowrance Hook 7 reveal tps. If I don't turn off the "DEMO," that is all I get.  When I do turn it off, and go to my "Sonar" icon, it shows the sonar box with one word on it...all caps...STOPPED....when I attempt to use the sonar, fill in all the required fields (custom mode) it does not show the results. 

 

So my question is, in addition to powering up my Lowrance, do I need to do something else to avoid the conundrum of: (1) staying in the "Demo" mode or (2) getting the message that sonar has STOPPED?

 

In advance, thanks for the assistance.

 

Dan