What is the App saying? Is there a notice on the screen for firmware update?
If you can restart the device, and report whether it is still indicating a firmware update.
This is the exact problem I reported under the post "Setup frozen on "Update Available" screen". They say it has been escalated to engineering.
Then it is... Engineering will contact you.
Note that I am just saying this looks very similar to my problem - of course any further input from B Mann would be helpful to ensure they are indeed the same problem.
You don't have the access code (yet). That is for multi-device linking, which we have not yet enabled.
Our engineering is looking into this kernel problem as it has been reported a few times. We will resolve the issue as soon as we understand the reasons behind it. It is probably not a coincidence that this comes up during the reset procedure, as we have not seen this issue before, and we just released the reset on Android on Friday. So there are some clues.