... or you've used bluetooth after setting it up, without a hitch for years on some old computer and one day suddenly you need to pull out a smart phone and take some snaps for a report that needs to be finished in two hours ... arrive back and find nothing works wasting half a hour until realising that updating via a proper broadcom driver package might have seemed so clever and the interface looks pretty now, but it's basically f'in useless.

Sneaker net is why sd cards in my smart phones are not encrypted ...