The phone displays the error: "Fingerprint sensor calibration needed."
If you have tried all the steps, including re-registering your prints, and the does not solve the problem, it is possible your phone has a hardware failure, and you should visit a Samsung authorized service center . If you are still having trouble, samsung fingerprint calibration tool
After a physical repair, you download the app from the Galaxy Store. Ensure the protector is clean, thin, and officially
Using a non-certified, third-party, or damaged screen protector can cause issues. Ensure the protector is clean, thin, and officially certified. Calibration helps to:
Fingerprint calibration is essential to ensure that the fingerprint recognition system on your Samsung device works accurately and efficiently. When you first register your fingerprint on a Samsung device, the sensor captures a limited amount of data, which may not be sufficient to accurately identify your fingerprint in different environments or conditions. Calibration helps to: