So I just downloaded the map update last night (free for 2 years) and installed it on the SD card. Then the car said - incompatible and wouldn't install it. Looking at it in more detail, the mapnsoft site has my car listed as a 2018 Kona, not a 2019 Kona EV. So that's why I got the wrong software.... I already called them and they're resolving it. But be aware, according to the person I spoke with, this has happened before. I guess they have some issues with their VIN database. I did make a backup of the SD card before I let the updater overwrite it. Restoring the backup brought the nav back to life, fortunately ... Hopefully they'll send me a new link to download later today.