I am not exactly sure since you seem to have tried various methods. So I’ll just throw out some ideas.
For hardware, you should troubleshoot to isolate if the problem is the transmitter, receiver, esc, motor, wiring or even the flight controller. I often swap out a component to see if it makes a difference, but in this case it seems to be a software issue.
For software, you should verify that you are using the transmitter sw setup correctly, and that you have uploaded the correct firmware to the flight controller. Actually, since this is an older flight controller, you might even try uploading an older firmware version if all else fails. I haven’t tried using the latest firmware on this flight controller if that is what you are doing. (The current developers would frown on this idea and probably tell you to get a newer version of flight controller.)
The Mission Planner esc calibration method normally works.
Using the manual method you should be following the exact steps described here.
I noticed you pushed the safety switch after the first battery connection, but the instructions don’t say to do that. It might not matter at all. The fact you are not getting the expected tones is a problem.
BTW, I don’t recommend plugging in all UBECs - only one - although you don’t need any unless you plan to use the servo rail to power up a device.
When you calibrate the radios with MP, what pwm values are shown?
When connected to MP what messages do you see when you power up? Do you get a pre-arm check?
Using MP does the Motor Test routine work?
The video doesn’t show a smoke-stopper, but that could prevent motor spin-up.
If all else fails, you can try posting the question to the Ardupilot forum.
Here are some other related posts in this forum:
https://community.dojofordrones.com/t/solved-calibrating-escs-pixhawk/532/2
https://community.dojofordrones.com/t/brownout-during-esc-calibration/568/3