Apologies for this confusion.
It was always the case that the SkyView Wi-Fi adapter (or the SkyView Video Input Adapter) could remain connected (plugged in) simultaneously with the USB flash drive for firmware updates, database updates, or charts access.
However, the SkyView display can only recognize the first USB flash drive plugged in. If a USB flash drive is plugged in, any subsequent USB flash drives that are plugged in will be ignored.
So if you have a USB flash drive plugged in for charts, that will need to be temporarily unplugged to before you can plug in another USB flash drive to load databases or firmware updates.
SkyView does have two USB ports on the rear of the display where the SkyView Wi-Fi Adapter and the SkyView Video Input Adapter can be plugged in semi-permanently, leaving the USB cable available for USB flash drives.
Thank you, I will do that. Is it correct that I can now leave the wifi dongle connected while doing a data update? That saves a panel opening!