Introduction to the new content and upgrade method for the update and release of Apple's official version of iOS11.2.1

­Apple officially released iOS 11.2.1 in the early hours of this morning, which is an incremental update to iOS 11.2, mainly to fix some bugs, such as a problem that shared users of "home" apps may not be able to access remotely.

­in the update of iOS 11.2, Apple officially launched the Apple Pay Cash personal money transfer function, which allows friends to pay and collect money through Apple Pay, which was proposed at this year's Apple developer Conference.

­in addition, for iPhone 8/Plus and iPhone X models, Qi wireless fast charging of up to 7.5W can be achieved after updating the official version of iOS 11.2.

­how to upgrade

­iOS official users can upgrade directly through OTA.

­in addition, in addition to upgrading through OTA, you can also download the corresponding firmware to upgrade through iTunes. The specific method is to download the firmware and open the latest version of iTunes on the desktop side, and press "Shift+ Update" to select the firmware to be brushed in.

­which devices can be upgraded

­iOS11 support devices include iPhone X, iPhone8, iPhone8 Plus, iPhone7, iPhone7 Plus, iPhone5s, iPhone SE, iPhone6/Plus, iPhone6s/Plus;9.7 inch iPad, iPad Air, iPad Air 2, iPad Pro, iPad mini 2, iPad mini 3, iPad mini 4 only iPod Touch 6 iPod.

­(Note: this time iOS11 is no longer compatible with iPhone5, iPhone5c, iPad4 devices)