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Fixed an 11 Pro, changed full housing with an other 11 Pro, and sold it.. The only parts not changed are the motherboard, FaceID parts and the Taptic Engine… Everything worked while testing ( i couldn’t test NFC ). Now the buyer says his NFC doesn’t work. He broke the back glass so I will be charging him, where or wich one is the antenna for the NFC or what parts work together to make it work? Please answer ASAP ( with pictures ), he wants me to repair his back glass so I will be doing a full housing repair ( keeping the same parts ), + new antenna(’s) for NFC Thanks

Why is my NFC not working on iPhone? It’s possible that even if an Apple Pay-ready terminal will work with your phone, its NFC reader hasn’t properly detected Apple Pay. If you find that simply holding your phone up to the terminal doesn’t work, try selecting a card manually. To do this, go into the Wallet app, then select the card you want to use. How do I turn on NFC on my iPhone XS? First open the Settings app on your iPhone. Then select the option “Control Center”. Scroll down and tap the green plus button to the left of “NFC Tag Reader”. Regards, Will

The NFC antenna feed is around the rear camera housing from top bezel to one of the screw posts for the logic board. Check if you forgot to transplant all the flex cables and the metal clips over to the new housing and assembled them correctly. You supply pictures, I’m too lazy to upload pictures for a free answer.