Just use other POS machines with the latest system for trading.
That is, the POS system has not upgraded the latest system and does not support single-chip bank cards.
After upgrading to the standard version of POS, the screen prompts: Without this assistance or no application during processing, log in with 00 operator, enter the 8- Other menu, download the EMV public key and EMV parameters, log in again after downloading, and then insert the card for transaction.