Lowrance Elite Ti2 - Whitescreened sonar

[Bassun]

Hey folks - running a new Ti2 9, and things work fine except for the normal sonar.  Running an Active Imaging 3 in 1 transducer, downscan, sidescan both work fine (charts, etc do too) but when I try to use regular sonar nothing happens.  It is just a white screen like it has been stopped (but it hasn't and doesn't say "stopped").
I've tried stopping and restarting, resetting sonar settings, and power cycling and fiddled with every option I could find, but nothing.  I did some google fu, and found there was an issue with an older SW version where the sonar would show a version of 0.0.0, but this shows 5.4.0.  I also read to update the overall software, but it is current with 20.0.1.  I assume there is some goofy setting that I'm not thinking about, any ideas?

[Bassun]

So apparently a proper soft reset seems to have been the ticket.  Cut power supply (switch or unplug) reconnect.  Press the "pages" button and continue to hold it in, while still holding the pages button, power on the unit.  Continue to hold the pages button through out, and for an additional 15+ seconds.

 

Once done, it started the basic set up questions (language, knots vs MPH, english, etc).  Following that the sonar appears to be working (hard to tell in the garage, but - it at least has some info scrolling at the top vs just a solid white screen before.  Hopefully this worked and helps someone else down the road.