william Good Q. Quite hard. No tip or trick on my end. Just try your best.
If you do end up snapping it, it will cause the cover to pop off, which will then cause the hinge to come loose, which can allow for the top and bottom to separate and eventually and snapping the ribbon cable.
Yes I have many spare parts of those little black frames connected to the front screen, which can easily be swapped out when I snap one upon removing the cover.