I was notified of a firmware update for my thermostats a couple of days ago 1.7 I think.

Shortly after hitting the upgrade button all of my thermostats have stopped working.

They still show in the app but with firmware verson 1.0.

The valves are stuck in the position that they were at the time of the update (on or off)

The rotary control on the valve does nothing

The only visual output is the connection light blinks every couple of seconds

Reset / re-pair does nothing to improve the situation

Any ideas or is every valve in my house bricked?