Hey Adam, sorry for the inconvenience here. Indeed the FW update is not so reliable on v2.17.2, and we fixed this once you get to v2.17.4+. It seems that sometimes the initial FW update during the setup flow fails, but you should be able to get a subsequent update to work via the app. Tap on the Bond Bridge Pro icon, go to Settings, then Firmware Update. If it fails the first time, please try it again. — Once you are on v2.17.4+, future updates should be smooth.
We did ship a number of units with v2.17.2 firmware, but are now upgrading them prior to shipment to avoid this hassle for others.