This Advanced NFC application shows how to work with an NFC tag using the NfcA technology class. You get the version data, read from the tag and write to the tag.

This is an Explorer Application for working with MIFARE Ultralight C NFC tags. You can read the complete content of the tag, read and increase the 16-bit counter, protect the data by setting Lock Bits, write data to the free user memory and use a memory protection on base of Triple DES Encryption.