Fingerprint sensor not working - Calibration needed

I am getting the following error : Fingerprint sensor not working , and on the lock screen : fingerprint not responding, i send the device to service and they return it with a comment we recalibrated the sensor and they send it back.
after resetting the device and installing all my apps again , one day after the sensor stop working again , the questions' is how to calibrate the fingerprint , * removing and adding fingerprint is not an option it blocked with the error above , even full hard rest for the device don't help that last time .

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