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What does NFC mean? If your bus card has no battery, where does the power come from? Bumping your phone into the router and connecting to WiFi are the same trick
During the morning rush hour, I was suddenly stuck by a question when using a bus card: If the card has no battery, where does the electricity come from? After looking through it, I realized that NFC is a card reader that supplies power to the card through the air. Touching a router with a phone to connect WiFi, simulating access cards, or touching QuickPass all follow this principle, and the truth behind access card simulation failure is also here....
