User's Manual

ACR350 Validator with QR Code Scanner – User Manual [e-mail]
Version 1.02 www.acs.com.hk
Page 40 of 61
3.2.1.1. DESfire TOP-UP
This function allows you to top-up an amount in your contactless card.
Figure 18: DESfire TOP-UP
1. Select “Contactless”.
2. Select “DESfire TOP-UP”.
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. After completing the top-up,
a “SUCCESS” message will
be shown together with card’s
updated balance
5. b. Otherwise, an “ERROR”
message will be displayed.