Carefully insert an iFixit "Jimmy" Tool (flat flexible steel blade) between the hard white plastic housing and edge of the LED light ring.

Pry the "Jimmy" tool slightly sideways and insert an iFixit "Metal Spudger" into the gap created. Slide it down inside the housing around half an inch.

Use the metal spudger to pry carefully slowly working your way in a circle around the LED Light ring to attempt to slowly work it backwards out of the housing.