I have a friend that just bought an old home monitoring kit with the ETH-250 v2 hub that was new in box, but it’s 4-5 years old and has never been powered on. It will set up and show connected but then it flip flops between connected and disconnected and will not add any of the sensors that came with it. Actually he bought two of these kits and both hubs act exactly the same. The sensors work because they will add instantly to mine but neither of his hubs will detect anything. I added one of his hubs to my account and have been looking at it in the IDE website and it has lots of fields missing that mine shows, like it doesnt even show the firmware version. It says zigbee is at version 2.1.6 whereas my own v2 hub shows zigbee FUNCTIONAL and 2.9.0.
My question is, are these old stock hubs so far behind in firmware that they aren’t going to work? Is there a way to manually update them or if left plugged in for days will they get up to date and work?