Just got back from the dealership with the latest firmware upgrade.Not true - we have a '19 in the family and the non-nav can also update over Wi-Fi. Don't believe everything a dealer tells you... 😸
I'm not sure about this but it may require being brought up to a more recent firmware level to be able to then do OTA.
Still no update over Wi-Fi option in the menus. 2019 Premium, non-nav and no HK upgrade. Do you have the HK upgrade?