Writing to an NFC card s done by NFC - which is an electrical fild (which is why the range is so short - it's not an electromagnetic field, just electrical.) Writing to a smart card is with a physical contact to the card, like writing to a SIM card. You need a smart card reader (which is also a writer). There may be some that plug into a microUSB port, and there might be apps for them that run on an S3, but being able to send out an electrical field isn't going to do anything to a smart card. (NFC isn't even as much as an RFID, and a smart card is a lot more than an RFID.)
03-30-2015 01:02 AM