How do you change a flint on dunhill dress lighter?

To change the flint on a Dunhill dress lighter, first, locate the flint compartment, usually found at the bottom or side of the lighter. Use a small screwdriver or a similar tool to carefully open the compartment, then remove the old flint. Insert a new flint into the chamber, ensuring it fits snugly, and reassemble the lighter. Finally, test the lighter to ensure it ignites properly.