Yongnuo 568EX (not II version) will not work with 622C???

CliveyBoy wrote in post #17640881
Eastern European websites seem to list an USB port, but I have been unable to spot one in any of the photos. I hope they are right.

You and me both, Clive, you and me both.
It'd certainly be strange to make available USB port for updates on the YN-622C II and not be able to do the same thing on a concurrently released flash. Always assuming that the rumoured trigger actually does have update ability, I haven't seen any pix of this trigger. Let alone definitive ones.

The pic you linked to (on AliExpress) seems to have a rubber cover top left of rear panel while hkyongnuo own site (same pix as on Elv's site) has the more expected LINK indicator (but not in the same place as their YN600EX-RT so it's a different case, again). There are other differences as well; methinks that perhaps they're totally different flashes illustrated - or non-finalised development stages.