In the early hours of this morning, Apple officially pushed iOS 15.4.1 to iPhone users, which is also the first beta upgrade system after the release of the official version of iOS 15.4, and there is only a gap of more than a week between the two.
From Apple's official update information, iOS 15.4.1 is mainly "bug fix", before the iOS 15.4 official version has the problem of battery consumption too fast, at first Apple did not admit it, and finally through the iteration of iOS to fix the problem, it is recommended that users who have upgraded the iOS 15.4 official version immediately upgrade the iOS 15.4.1 system, and pay close attention to the battery life of the iPhone.
Previously, some iPhone 11 users said that in the case of only 2 hours of screen on, more than 80% of the power consumption in one day, even if it is the iPhone 13 series, the battery remaining in more than 95% of the users have not insisted on less than half a day!
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