Chosen Solution
Just an FYI, the iFixit iPhone app shows two guides: one for a “Rear Camera Replacement”, and this one, for “Rear-Facing Camera Replacement”. DO NOT use the other one! It is much less detailed and did not mention anything about severing the ribbon cables for the capacitive button lights… lesson learned the hard way.
Comparing two guides, i think “Rear facing cameara replacement” it better and much clear. Samsung Galaxy S5 Rear Facing Camera Replacement
