Hi @Jon_I. I am definitely glad that your Ring Pro is working now! After watching that video and reading your post, I want you to know that doing this is not something we recommend, as it may void the warranty, found here. I think this working out for you was merely coincidental.
Allowing the Ring Pro to completely drain from power is what we call a Hard Power Cycle. Once power is reintroduced, it allows the device to boot up properly. It looks like this was also the case with your Ring Pro. Again, very happy you were able to get this work!