[,,,,Duplicate Thread,,,,,]

I know that’s really frustrating. There are already existing discussion threads on this issue, so you should add your post to one of those. Community members have been doing a lot of research on the problem, as well as discussing with ADT and smartthings support staff. The firmware that was updated was not the hub firmware, it was the firmware for the cellular communications module. Again, details in the existing thread.

ADT Hub System Test Required/Duplicate Sensors/Cellular Module Failure (July 2019)

Check that your ADT Panel is being monitored! (10 July 2019)