Catalina Install Bricking Some Macs

It appears that the new Catalina update to macOS is Bricking some Macs. This is not a wide spread problem, but it is occurring enough to cause people (and hopefully Apple) to take notice. The problems seems to be with the Firmware update that Catalina installs. I guess this might be another reason to wait for Catalina 10.15.1. This article describes what people are experiencing.