Can't operate my printer after changing the extruder (too long extrusion prevented)

[madding]

I've changed my printer (mega x) extruder (titan) to a bmg dual drive extruder. now I have the options in reverse (retract for extrude). after changing the extruder steps/mm to a negative value, when I try to extrude I get: Recv: echo: too long extrusion prevented

I don't know how to solve this. Any idea? From what I've heard, anycubic is a pain to change the firmware, and I can't dissassemble the printer rn.

Any help would be highly appreciated.

TIA

[Hairyloon]

@madding

after changing the extruder steps/mm to a negative value,

Why would you do this?

[madding]

I was researching about how to invert the direction of an axis via gcode commands, and it was one of the solutions I found. in the end, I changed the cables order to invert the motor

[Ewald_Ikemann]

You could swap stepper motor wires:

Part 3/3 Reversing feeding direction by swapping a coil's wires

[Hairyloon]

@madding

was researching about how to invert the direction of an axis via gcode commands, and it was one of the solutions I found. in the end, I changed the cables order to invert the motor

Did you change anything else?
If no, then are you sure?