Can you please tell me what the square flex circuit (with 2 square contacts) is for, which is surrounding the FP Sensor? Mine was damaged, when my back cover was cracked. I have replaced the back cover, and will be getting another FP sensor (as mine is inoperable), but that large square flex is also damaged. I have no idea what this is for? I thought it was connected to the NFC circuit, but the phone still charges wirelessly.
Same question, I am having great difficulty in locating the PARTS to complete these repairs. Can someone please list where we can actually purchase the replacement parts that are shown in these guides??