- The terminal cannot operate normally after being powered on
- The touch screen malfunctions
- There is a communication problem between the terminal and the background
- The coin validator malfunctions
- The banknote validator malfunctions
- The printer malfunctions
- The scanner malfunctions
- Faults occur in RFID card reading/writing
- The message “Door open” is prompted, and transactions cannot be carried out
- The advertisement pictures are displayed without background music