User's Manual
ACR350 Validator with QR Code Scanner – User Manual info@acs.com.hk
Version 1.02 www.acs.com.hk
Page 41 of 61
3.2.1.2. DESfire PAY
This function allows you to pay the amount through your contactless card.
Figure 19: DESfire PAY
1. Select “Contactless”.
2. Select “DESfire PAY”.
3. Select the value by
adjusting the arrows.
Note: Successful and un-
successful top-ups are shown at
the bottom right
4. Present the card on the
tapping area
5. a. Once payment is completed,
a “SUCCESS” message will be
shown together with card’s
updated balance
5. b. Otherwise, an “ERROR”
message will be displayed.