OK. Managed to get the MS flag changed to 0. Opened the Ibycus 4.0 in basecamp and installed map from basecamp. Still shows up as map format not supported.
I've yet to get these Ibycus maps to work on a marine chartplotter but have no problems with the topo canada maps. Also the Ibycus maps seem to work on other Garmin handheld devices.
Has anyone gotten the Ibycus maps to work on a marine chartplotter and if so how did you do it?