ApplePay no longer works (NFC antenna?)
When iPhone 6 was new ApplePay worked fine. After 6 months it would work intermittently, then about a year from purchase stopped working entirely. I took it to Apple Genius Bar. They worked with it for about 2 hours and finally said it was a hardware problem-wanted $180 to fix. After I uploaded iOS 11 on a lark I tried ApplePay again. It worked flawlessly for 5 charges. Now it activates when held near merchant's reader, but when I try to pay message of 'Holder near reader' appears and I can't make payment.