Samsung Galaxy devices use either ultrasonic or optical under-display fingerprint sensors. When you replace a broken screen, the newly installed glass panel alters how light or sound waves pass through the display to reach the biometric scanner underneath.
Depending on your model and region, you can calibrate the sensor using either Samsung's official Self-Repair application or specialized workshop hardware utilities. Samsung Galaxy devices use either ultrasonic or optical
Confirm the prompt to authorize the installation of the signed Samsung driver. Step-by-Step Sensor Recalibration Workflows Samsung Galaxy devices use either ultrasonic or optical