Some Samsung smart fridges stopped working on Tuesday due to a firmware update.
Korean outlets were the first to report the problems, which affect Samsung’s Bespoke AI line of fridges. Star News Korea, per a Google-provided translation, said that most of the affected devices were four-door fridges from 2024 or later.
You don’t even need separate controls. Just have the compressor and temperature controlled by a simple microcontroller which gets commands from the touch screen. Thus if the touch screen crashes the microcontroller keeps the food cold.
That of course requires adding a microcontroller rather than just putting a couple of relays attached to the touch screen…