Frustration level 100!!
Yes I have been there. I was so bent with the trouble and problems I had programming my er9x that I bought a Flysky i10. Of course after I get the i10 setup. I look and sit down and program my er9x in like 20 minutes. Missed one small step and it all went down hill.
You have made good steps forward. Now to get all 4 motors turning. When I first started, I was on the now close open pilot. No matter what I did I could not get all the way through the radio calibration. It would stop in different part of the cal, but never get all the way through. After many hours of trying, ready to use my Tx as a hammer on my CC3D, I tried another USB cable, well it worked this time. No idea why but the other 2 cables did not work. Work for my phone, card reader, ext HD, everything else but not the CC3D?
My mount for my CC3D will be here next week, then I can try again. I was told that mounting it with foam tape is not a good idea, so I ordered a mount and will see if it works with the mount.
Buzz.