I am upgrading from 1. When asked to update firmware on my phone, I said no. The on-board app then performed the update… no problems. All pieces are recognized and, knock on wood, all is working as expected.
Suggestion for 3 — have magnetic pieces so more portable.
Also it would be nice to have the sensors so custom pieces could be user created… ala Chessnut. I like Zagreb style or Dubrovnik… easier to tell small pieces apart.
Overall… GREAT JOB, Kudos to the team at Bryght Labs. Well worth the upgrade.