VeiledPrivateer There is a lot to unpack.
Maybe you are missing the point, if you want to use HC with your headset, then nothing changed, you have to follow the same workflow as before.
Now if you want to watch videos on you smartphone and sync your toys, then please read the original post again. Since you already have HC and Toy paired, all you need to do is to open mobile browser (chrome, safari, firefox...), go to SLR, login, find scripted video, and press the button as shown in the 1st post.