Why does hitting ELECTRONIC things sometimes fix them?
In: Technology
Because electronics are still made up of mechanical connections.
Batteries and fuses have spring pressure keeping them touching the terminals.
Circuit boards have solder connections that can crack and break or header pins that make contact with cables or other components.
Relays and switches have metal contacts that must touch and make good connection in order to work.
If any of these mechanical connections get old or worn out or loose or broken, then jostling them around can sometimes cause them to reconnect and start working.
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