April 8 news, foreign media MacRumors reported that Apple officially closed the iOS 15.4 verification channel, once you upgrade the latest iOS 15.4.1, it is impossible to downgrade back to the previous version. However, Xiao Lei suggested that everyone upgrade, because the new version solves many major problems.
On the 15th of last month, Apple pushed the official version of iOS 15.4, bringing a mask face recognition unlock, support for third-party applications 120Hz ProMotion, and adding universal control and 37 new symbol emoticons, which is a major version upgrade. Many users have been looking forward to the ability to unlock the mask for a long time, and now Apple has finally added this function in the official version, no longer need to press the digital password every time.
However, many users reported that after updating iOS 15.4, the mobile phone experienced abnormal power consumption, and the battery life was significantly reduced compared with the previous version. YouTube blogger iAppleBytes tested this phenomenon, selected several different models and upgraded to iOS 15.4, comparing it to the previous version of battery life.
The test results found that the iPhone 12/13 two generations of new aircraft after upgrading the new system, the battery life has indeed decreased, more than half an hour less than before. However, older models such as the iPhone 6/7/8 and the previous two generations of iPhone SE have improved their battery life. It can be seen that iOS 15.4 does have abnormal power consumption problems, but the performance of different models is different. Some netizens said that before the update, the iPhone 13 Pro Max can be charged one day or even two days a day, and the follow-up flight of the upgrade is only half a day, which must be charged twice a day, and the fever is serious.
On April 1, Apple urgently pushed the official version of iOS 15.4.1 update, mainly to solve the problem of abnormal power consumption in the previous version. In addition, the new version also fixes the problem of Apple AVD and improves system security. Apple recommends that all users upgrade to the latest version, and today the iOS 15.4 authentication channel is closed, which also encourages users to keep the system updated.
At present, Apple is still testing iOS 15.5, which is likely to be the last major version upgrade before the release of iOS 16. Apple officially announced that it will hold a global developer conference on June 7, and bring iOS 16, macOS 13, etc., hoping that Apple can add more interesting features to the new system, which is worth looking forward to.