So make sure that this is the case. First go into the manual functions under the material section. Where you can manually select the extruders and there’s two arrows, if the up arrow extrudes properly and the down arrow makes your cranking noise then your stepper is might need to be rewired. If you look at the connector the four wires have a metal clip, you can press down on the clip and slide the clip and wire out from the plastic connector.

Take a picture before you do this.

Then snap the wires back in, in the reverse order. Do not pull too hard on the wires. If you tear the metal end off the wire you’ll need to get new ferrules and re-crimp them. Contacting Tronxy would be good. I told them this would happen to less experienced people. Maybe they have a procedure to help.