Chosen Solution
Hi everyone! My NFC stop working, I was reading anothers post and I have detected some problems. The first problem is the standoff screw the holds antenna extension, I tried to tie it with a rubber and didn’t work. The second problem is the sensor cable of the front camera, I accidentally ripped the cable. I bought another one, but it will take a while to arrive. Can this sensor cable interfere on the NFC? Is it possible check the NFC with a continuity test? I changed the antenna extension but it didn’t work either and I check all the screws. I’m out of option, could you guys help me? Sorry about my english.
The begin and the end of the red line is where I did the multimeter test.
Blocking the signal from the NFC chip and its antenna will prevent it from woking. From what you describe you need to replace the screw as its part of the electrical pathway. Basically, the mount screw is a part of the signals pathway. The Yellow outlined chip is the NFC chip
While not very obvious the mount points along the top are also connections to imbedded antennas within the body shell so each screw needs to be present other wise you don’t have the needed electrical pathway. In fact corrosion can also effect things here.
Update (09/29/2022) Maybe this can help you visualize. This is an X-Ray image of the iPhone 7 (click on it to get a zoom)
