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.
If your Orba seems to have met its doom, try the steps on this Solution Guide. This should revive your little friend. If not, open up a support ticket and send us the Log File. We'll go from there. Thx