The is not a standalone consumer app, but a specialized utility used primarily by technicians at Samsung Service Centers or through the Samsung Self Repair Assistant app . It is essential for re-syncing optical fingerprint sensors with a new display after a screen replacement. Who Is This For?
Unlike optical sensors that take a 2D picture of your finger, ultrasonic sensors use sound waves to map the ridges, pores, and even sweat glands of your fingertip. This requires an incredibly precise physical alignment with the display. samsung fingerprint calibration tool
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