Well, I bought an all-manual camera on eBay a few years ago on which the seller said the meter wasn't working, maybe a battery issue. Later, evidence pointed to the camera having been dunked in seawater and left sitting so that the meter circuitry in the baseplate was all corroded. So the electronic parts were DOA, yet the camera functioned fine otherwise.
My oldest camera with electronic shutter dates to the early 1970s, and it's working fine. Actually I've never had an electronic dependent camera just die except through impact damage, or Coca Cola spilled on it, etc...