How can I calibrate my fingerprint sensor

If the sensor is not working, you will have to recalibrate your Samsung Galaxy A52s. This can be done in several ways. The first way is to go to settings and click biometrics. Then, select security. Scroll down to the fingerprint section. You will see the option to delete existing fingerprints. Erase all your fingerprints. This should clear up the problem. Then, you can try setting your fingers again.