use z3x box
Operation: Reset FRP UFS
Selected model: SM-N920C
Selected port: COM12 USB Serial Port
Hold 'Vol down' and press 'POWER ON' for 2-3 seconds
Checking phone at COM12 OK
Phone detected, do not release 'Vol down'
Reading data from phone... OK
Release 'Vol down' now
Comparing selected model... match (N920C)
Setup connection... OK
Reseting FRP... OK
Rebooting phone... OK
Reset FRP done
Done with Samsung Tool PRO v.31.5.1
Operation: Reset FRP UFS
Selected model: SM-N920C
Selected port: COM12 USB Serial Port
Hold 'Vol down' and press 'POWER ON' for 2-3 seconds
Checking phone at COM12 OK
Phone detected, do not release 'Vol down'
Reading data from phone... OK
Release 'Vol down' now
Comparing selected model... match (N920C)
Setup connection... OK
Reseting FRP... OK
Rebooting phone... OK
Reset FRP done
Done with Samsung Tool PRO v.31.5.1