Troubleshoot Poynt terminal 'Unsupported Card' error. Diagnose card reader issues, EMV/NFC failures, and contactless payment problems. Expert solutions for retail.
Note any impacts or drops.
Ensure that the latest version is installed.
Track the pattern of failure and specific card brands.
EMV/NFC card readers rely on radio frequency identification (RFID) at 13.56 MHz for contactless transactions. The terminal's integrated circuit (IC) must correctly interpret the card's data transmitted via inductive coupling. Signal attenuation due to interference, antenna misalignment, or damage can prevent successful card reads. Incorrect firmware configurations or corrupted card whitelists can also cause card rejection. ESD events can damage the reader's analog front end.
The Poynt Terminal displays an "Unsupported Card" error during transaction attempts.
Regularly clean the card reader surface. Provide strain relief for power and network cables to prevent damage. Implement ESD prevention measures, especially during dry, winter months (e.g., anti-static mats).
If the terminal is near other electronic devices, temporarily move them away to rule out electromagnetic interference (EMI) as a cause of the "Unsupported Card" error. While unlikely, certain devices can emit signals that interfere with the card reader's operation. Power cycling the device may clear a temporary software glitch.