Troubleshooting 'Invalid Signature' error on a Poynt Terminal. Focus on software integrity, external interfaces and preventive maintenance in a retail environment.
The software version is located under the 'Settings' menu, under 'About'.
The network signal strength can be found in the 'Settings' menu, under 'Network'.
The error code is displayed directly below the 'Invalid Signature' message.
Digital signatures rely on cryptographic keys to ensure data integrity. The Poynt Terminal's secure element validates these signatures during transactions and software updates. Failure points can include corrupted firmware, tampered data, clock drift affecting certificate validity, or issues with the certificate authority (CA) chain.
The Poynt Terminal displays an "Invalid Signature" error, indicating a failure in digital signature verification during a transaction or software update process.
Try accessing the terminal's diagnostic menu (if available) using a specific key combination (refer to the Poynt documentation). This menu may provide detailed error logs and diagnostic information that can help pinpoint the cause of the issue. Ensure the payment processing application is the latest version.