nfc-mfultralight is a MIFARE Ultralight tool that allows one to read or write
a tag data to/from a
MIFARE Ultralight tag is one of the most widely used RFID tags for ticketing application.
It uses a binary Mifare Dump file (MFD) to store data for all sectors.
Be cautious that some parts of a Ultralight memory can be written only once
and some parts are used as lock bits, so please read the tag documentation
before experimenting too much!
To set the UID of a special writeable UID card, edit the first 7 bytes of a dump file and
then write it back, answering Y to the question Write UID bytes?.