A bit of history.

On September 5, 1977,
the Voyager 1 hardware
was yeeted towards interstellar space.

Four years later, in 1981, the backup S-band portion of the communications hardware was shut off.

In October of 2024, after a partial degradation of the primary X-band communications interface, the backup S-band communications automatically came back online due to the fault, after a period of 43 years offline.

THAT is appliance-grade engineering.