iPhone Xs and Xr can work even when the battery is empty

Apple's new set of 3 iPhones has a better battery life than its previous products, of which Xr is a phone that is said to have the best battery life. And to help users still be able to perform a few specific operations when falling into a state of battery exhaustion before the opportunity to charge the device, Apple has integrated the "Express Card with energy reserves" into 3. My new iPhone. This feature allows users to use NFC chips built into the iPhone even when the device is completely empty.

Recently, detailed information about Express Card transaction feature has also been added by Apple in its iOS security documents. Accordingly, when clicking on the side button, the low battery icon and the message that Exress Card is ready for use will appear. Express Card transactions will be performed by NFC drivers just like when iOS is running. And of course, because the device runs out of battery, they are only shown with a vibrating notification, but no message is displayed on the screen.

This is a great feature for users who are using their iPhone to pay for the train or replace office cards but are not really effective for ordinary users.

This always-enabled NFC transaction support will not work if the user turns off the iPhone, rather than turning it off because the battery runs out. And when the phone is out of battery, Apple Pay transactions will not work either.

See more:

1. How to turn on the flashlight with the power key on the iPhone
2. Why is the iPhone battery icon yellow, how to fix it?
3. How many tricks have you missed using this iPhone?