Chip card e.g. payment card, operating method, involves delivering information about necessary exchange of chip card to card issuer using data connection with transaction receiver by chip software, which is embedded in terminal

摘要

The method involves embedding chip software (14) in a terminal (16), a monitor (17), and a keyboard (18). The chip software detects defective storage cells (12) i.e. electrically EPROM cells, and produces information about necessary exchange of a chip card during exceeding a preset threshold and during reaching an end of a service life of the card. The threshold is calculated based on a number of defective storage cells. The software delivers information about the necessary exchange of the chip card to a card issuer (27) e.g. bank, using a data connection (26) with a transaction receiver.