Samsung — Fingerprint Calibration Tool [2021]

Type the secret code: *#0*# (Note: This code is blocked by certain carrier firmware versions). Tap on the box. Scroll down to the Fingerprint Test section.

This issue occurs because Samsung links the under-display fingerprint sensor directly to the security chip on your motherboard. When a display is swapped, the optical or ultrasonic sensor detects a change in light transmission or distance, requiring a recalibration to match the new hardware profile. samsung fingerprint calibration tool

Are you currently , or is your fingerprint sensor failing on its own ? Knowing this will help me give you the right technical instructions. Type the secret code: *#0*# (Note: This code