Confirm that the pos machine has electricity, and press and hold the ON key to open the pos machine;

Enter the operator number 0 1 and press OK, then enter the operator password 0000 and press OK;

The pos machine will open automatically. Then you can swipe your card, enter the amount and let the cardholder enter the password. After issuing two small receipts, the first one is signed by the cardholder and the other one is kept for reconciliation.