Thread: 788ci question.

Originally Posted by Humminbird_Greg

Performing a Format All Nav Data menu function will do this. Look in the Set-up menu tab for this menu.

If it does not have this menu (due to software versions) than you will have to use the “Delete All Nav Data” menu (under the Nav menu tab). Again, depending on the software version your 788ci unit has this could be under the Nav menu tab or in the waypoint management menus (Waypoints, Routes, Tracks menu – Options – Select All and… - Delete – Yes).

Thanks a lot. It has the latest update.