Hello, I’m not sure what you are referring to with a QML file to fix the issue, but I don’t think this is the solution to your problem.
With QGC, you can calibrate your joystick on the Joystick tab of the Vehicle Setup page (click the gears icon). Click calibrate, then follow the instructions and the diagram in the upper right hand corner of the page.
Beyond that, it is not clear exactly what your issue is. Can you please explain it in more detail?