How do you replace flint in an omega lighter?

flip open the lighter,, looking down onto the top of the mechanism there is a bar about 8mm long which overlaps two parts. There is a groove in the front of this bar, simply push on the groove, moving the bar towards the hinge edge of the top. The flint housing will be released and swing out, pop a new flint in and push the houseing back into position. The bar will pop back into possition.