6z Intz March 21 news, Apple released the official version of iOS15.4, users have received the system update push and upgraded to iOS15.4, some users said that the upgrade of the iPhone battery life time is reduced, to which Apple's official support account replied.Apple responds to iOS 15.4 official range flops: "Within 48 hours of installing the new version of iOS, applications and phone functions need to be automatically adjusted/adaptive stage, this stage of the battery life decline or phone heating is normal, the follow-up if there is a problem you can then contact the official customer service to deal with."
iOS 15.4 adds support for wearing masks to use face unlockingand other features.
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