Originally Posted by
Wayne P.
I have in my lap now, a Helix 12 CHIRP MEGA SI+ GPS G3N. I have updated the unit software to 2.280.
In the SYSTEM STATUS view it has no Humminbird Basemap version number displayed, I have not installed the new basemap.
Still has the Humminbird Basemap menu item in the Chart/Map Source.
I have used this unit a few times since the update with no issues.
Lakemaster has no coverage where I fish so I use Navionics or Auto Chart Live.
I have some Chart Select maps of lakes I rarely go to and those are read by the unit.
When I insert a Chart Select card in, an extra Map Source is added ( Humminbird Legacy). In that setting or Auto, the unit reads the Chart Select map.
I am not going to install the new basemap in this unit so I have a reference for threads like this.