FingerPrint not working after screen replacement

Hi There,

Firstly Understand This:-

This Phone Comes with AMOLED(LED) Screen With In-Display Fingerprint Sensor

There Could Be 2 Scenarios

1rst) In Market There Are Two Types Of Aftermarket Screens For This Phone Namely LCD And LED, LCD Is Cheap And And Does Not Support In Display Fingerprint Sensor, In Your Case Its Possible That The Vendor Charged You For LED Which Is Costly But Instead Installed LCD .If This Is The Case Contact The Vendor To Rectify It

2nd) IF Vendor Installed The LED Then Fingerprint Sensor Needs To Be Calibrated In Accordance With New Display, For Calibration You Need To Visit Service Center As Calibration Is Not Possible In Aftermarket