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I remember in Prisoner of Azkaban the anti-tech field around Hogwarts was briefly mentioned, though much ado was made over Arthur Weasley's flying Ford Anglia which he wasn't supposed to enchant but totally did. Arthur's department in the MoM is about regulating intersections between magic and tech, which implies there are problems that require legal prohibitions. My read is the laws are overly harsh and not well enforced, except when the state or some official wants to make someone go away.

That said, again, Rowling wasn't great at consistency in the canon, so it remains up to the writer if and how electronics might be affected by ensorcellments, and how they might be integrated.