My VCSA was 6.5 u3f and now updated to u3n by using ISO. Everything is fine but there is no type / product / version shown in VCSA page
I used command vpxd -v to check the updated version, which shows me VMware VirtualCenter 6.5.0 build-17590285. And in vSphere Client and click About VMware vSphere which shows vSphere Client version 220.127.116.11000.
I think my issue is similar to the following, and the my update.conf in /etc/applmgmt/appliance is also empty.