If the money in the electronic cash account of credit card and debit card wants to be swiped by POS machine, it can only be swiped by POS machine with flash payment sign, and POS machine without flash payment sign can only swipe magnetic stripe card. The following are the steps for POS to swipe the electronic cash of chip card: first, in the interface of "Please swipe the card and insert the card" displayed by POS, press Enter to enter the main menu, then press 8 to enter "Other", then press 1 to enter the electronic cash, then press 1 to enter the quick payment, then enter the amount, and then press Enter. Finally, put the card in the sensing area, commonly known as waving the card, and then swipe the card successfully.