Samsung Fingerprint Calibration Tool Jun 2026

: Calibration is required because the fingerprint sensor is often integrated into or situated beneath the display. Replacing the screen changes the optical properties the sensor relies on to read your fingerprint.

Open the Self-Repair Assistant software on your PC. samsung fingerprint calibration tool

Navigate back to Settings > Developer Options and toggle USB Debugging to ON. : Calibration is required because the fingerprint sensor

On some models (S10, S20, Note 20 Ultra), the ultrasonic sensor is a separate, thin piece of film glued to the back of the OLED screen. With extreme care, you can use a heated plate (80°C) and fine fishing wire to separate the original sensor from the broken screen and glue it onto the new screen. If you do this perfectly, the phone never knows the sensor changed, and no calibration is needed. Navigate back to Settings > Developer Options and

Follow the on-screen prompts. You will be asked to leave the screen completely untouched and clean while the sensor scans a blank matrix to set its baseline.

Method 1: Using the Samsung Self-Repair Assistant (Recommended)

If the calibration was successful but the scanner is still slow, go to and delete your existing prints, then register them again. Summary Checklist Potential Solution After screen repair failure Use Self Repair Assistant app or *#0*# . "Calibration Needed" error Perform calibration with proper lighting. Slow/Low accuracy Remove screen protector & re-register prints.