I have a UAP LR which is EOL. The message is “Firmware and security updates are no longer supported. The device was fully supported until Mar 1, 2021.” From what I remember, the older controllers before March 1, 2021 were the only ones that were able to configure it.
I am currently using the latest version of hassio and the controller. What is the best way to downgrade the controller to regain function and control of the UAP LR?