It look more sleek with an uniform color (metal radome) . Beside the radome change, it also lost a pitot tube on the right near the nose cone.
On the right side of the fuselage, before the limit of the radome. It's present on the JF-17 with the metal radome but not the one with radar installed. I'm not talking about the one on the nose.No operational JF-17 with a radar fitted had a pitot on the front of the radome.