Troubleshooting an 'Erreur de Validation' error on an Opus card terminal. Includes diagnostic steps, safety warnings, and preventative maintenance.
Record the serial number for support inquiries.
This assists in identifying potentially compromised cards.
Determines if the fault is card-specific or terminal-related.
Validation errors on payment terminals can stem from several sources, including incorrect cryptographic keys, corrupted application data, communication failures between the terminal and the payment processor, or issues with the card reader hardware. These terminals employ cryptographic validation protocols for secure transactions. The 'Erreur de Validation' message indicates a failure within one or more of these protocols. Signal attenuation and electromagnetic interference (EMI) can also contribute.
Unplug the terminal before cleaning. Use a dry, lint-free cloth or a card reader cleaning card. Avoid using liquids directly on the terminal. If the terminal is connected to a power outlet, ensure the outlet is properly grounded. Avoid touching any exposed metal components. Observe posted safety guidelines related to electrical equipment in the kiosk environment. Ensure proper ventilation around the terminal to prevent overheating. Due to the unattended environment, promptly report any signs of vandalism or physical damage to the terminal.
Regularly clean the card reader slot. Ensure the terminal is placed away from sources of strong electromagnetic interference (e.g., microwave ovens, power supplies). Implement a scheduled terminal reboot (e.g., weekly) to clear temporary errors. Check and secure the power and network cables to prevent accidental disconnections. Inspect terminal for physical damage.
If the error persists, try performing a 'cold reset' of the terminal (if supported and documented by Opus). This usually involves holding down a specific key combination during startup, forcing a system reboot and clearing temporary memory. Note: A 'cold reset' is NOT the same as opening the terminal. Consult the Opus documentation for the correct procedure for the specific model. Also, try using an external USB ferrite choke on the power cable near the terminal connector to reduce electromagnetic interference. Consider testing another known 'good' network cable.