1. Sign-in: To sign-in, generally press 1 key----enter teller number 01----enter password 0000----wait for connection---show successful sign-in.

2. Swipe the card: Press the confirm button in any state to enter the system----The machine displays the card swipe (or press 1 button to consume)----Swipe the card----Check the card number and press OK--- -Input the amount (the "0" key carries forward, the "Clear" key advances)----Press OK when correct----Let the customer enter the password on the small keyboard and press OK (if there is no password, just press OK)--- -Automatically print the consumption receipt (the card is swiped successfully at this time)----The customer signs the receipt----Check whether the signature is consistent with the signature on the back of the card----Complete, more professional mobile POS machine services are available in Ding Fengming .