Griaule Biometrics

Problem: The fingerprint sensor is not working with GrFinger Desktop Login

Error message(s): "Invalid GrFinger license.", "Unable to read GrFinger license.", "GrFinger initialization failure.", "Unable to initialize the image capture at the fingerprint sensor."

Solution: First, check if your fingerprint sensor is compatible with GrFinger and if its driver is correctly installed. Second, check if you have a valid license. Finally, for further troubleshooting on this topic, please read the GrFinger Biometric Library manual.