OK, still having no joy here.
This is the process that I used, maybe some can spot an error I have made.
Again, reported firmware versions:
APP; 2.8.0
Version: 1.7.00.90+
Camera: 1.5.00.30
RC: 1.5.80
Power on on A/C, R/C, App up and running, Galaxy S5 has good WiFi connection to internet. Go...