I was sold the f4 v3 version instead of the f4 pro v3 version and I cannot configure it now.
Maybe you have loaded the wrong firmware onto it. Try to load omnibusf4sd target to your FC
And no the F4 v3 (non pro) does not have a current sensor. Only the omnibus F4 Pro has a current sensor.
Non PRO = No sensor
PRO = sensor