How do you unfreeze the needle position dial on an Elna Super?

To unfreeze the needle position dial on an Elna Super sewing machine, gently wiggle the dial while ensuring that the machine is turned off. If it remains stuck, check for any debris or thread that might be obstructing the mechanism. Apply a small amount of sewing machine oil to the dial's pivot point, then turn the dial back and forth to help free it. If the issue persists, consult the machine's manual or a professional for further assistance.