iPhone XS NFC Problems

Hi, I appreciate any help that I can get. I have recently refurbished an iPhone XS for a customer which included the back panel. Everything seemed to be fine until the customer got back to me saying that when paying at a supermarket they were not able to pay with Apple pay. To me, this sounds like an NFC problem however I don’t know how to fix this. Is it the wireless charging coil that has the NFC or is it on the motherboard? Never had this happen so a but bizarre.

Thanks

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crwdns2931729:0crwdne2931729:0: Kho 24, 2020

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I was able to confirm that the NFC worked by ordering an NFC tag. I used my Samsung to program the tag (which can be anything) to open the ifixit page. I then touched the tag to the top of the iPhone and it worked. I noticed that the NFC is not in the wireless charging coil as when I put the tag there it doesn’t pick up.

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iPhone XS

iPhone XS NFC Problems

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