I have the exact same problem.
Many people have experienced the same issue and discussed in the other threads actively.
My Orba worked fine for 7 days and then nothing, no power, doesn’t appear to charge and doesn’t connect to app. An expensive paperweight.
Same problem with my Orba. (Three days old)
After installing & starting the Win-App (Win 10 Pro) the Firmware-Update failed.
The Power-Button does not compute, and charging my Orba failed, too.