Step-by-Step: How to Recalibrate a Samsung Fingerprint Sensor

Before concluding it is a hardware failure, try these steps to improve recognition, as recommended by Samsung Support :

If your sensor is just acting sluggish, you might not need a "calibration tool," but rather these software adjustments: Increase Touch Sensitivity

There are two primary ways to access the Samsung fingerprint calibration tool: the official service route and the DIY software route. 1. The Official Route: Samsung Service Software

—they only fix software corruption.

The phone will display a grid or specific patterns to calibrate the sensor's depth and light sensitivity. 2. The Secret Diagnostic Menu (Self-Test)

Click on or trigger the factory diagnostic activity manually.

Validates if the physical sensor is broken or just uncalibrated. Wipe Biometric System App Data Removes corrupted calibration files from system updates. 3 Remove Screen Protector