iOS 11.3 Update Does Not Fix The iPhone X Apple Pay NFC Problem

The iPhone X Suica problem is NFC issue that causes reader errors and double reads on transit gates or store readers on a regular basis: on average 1 out of 3 NFC attempts is an error. Evidence points to a iPhone X NFC hardware flaw that affects all iPhone X production before April 2018 and that Apple has fixed the problem on post April 2018 production units which I call Revision B iPhone X. Readers report that Rev-B iPhone X NFC performance is error free, substantially better and immediately noticeable.

It’s a problem in Japan because transit cards like Suica require much higher performance than low performance EMV contactless credit cards. Transit gates are not cash registers. EMV was developed for slow pokey credit card payments at your local supermarket, not whizzing through a transit gate at Tokyo rush crush hour. This is why EMV sucks at transit.

Complaints on Twitter and Japanese blog sites have been constant. Japanese iPhone X customers who depend on Suica for their daily commute are frustrated with Apple’s lack of action:

Summary
iPhone X users outside of Japan using Apple Pay for store payments rather than transit seem unaware of the iPhone X NFC problem. If your iPhone X requires double reads on a regular basis check your iPhone X manufacture date by pasting the serial number here. If it was manufactured before April 2018 you should consider contacting Apple Support and exchanging it.

Apple needs to fix iPhone X NFC problems that have plagued users since iPhone X went on sale.

UPDATE
The original post reported that iOS 11.3 did not fix the iPhone X Suica problem. iPhone X has a NFC hardware problem, for more information see:
iPhone X Suica Problem Q&A Exchange Guide (English Version)
iPhone X Suica問題Q&A交換ガイド（日本語版）

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