The iOS 15.4 update causes a decrease in the autonomy of some iPhones. According to testimonials, installing the firmware has a negative impact on the battery of Apple smartphones.
A few days ago, Apple started rolling out the iOS 15.4 update to all compatible iPhones. This new version of the operating system includes several major new features, such as better compatibility with the DualSense controller, 37 new emojis and the possibility of installing updates with mobile data. Above all, the update allows you to unlock the iPhone with Face ID even if you are wearing a sanitary mask.
Unfortunately, the update also comes with a drop in battery life on some iPhones. According to the testimonials of some users on Twitter, installing the firmware has greatly reduced the endurance of their device.
“Battery life on iOS 15.4 is really bad. After 24 hours, I lost 80%, but the screen was active no more than 2 hours and I only use Safari, YouTube, Instagram, Uber”, testifies a user. Another assures that “my phone is stuck at 95% or 97% charging, then when I unplug it, it shows 100% maybe 5 minutes later or after a reboot then quickly drain”.
iPhone: iOS 15.4 update is causing serious battery life problems
One could assume that the drop in autonomy associates with the activation of the 120 Hz screen of the iPhone 13 Pro. Apple has indeed activated the high refresh rate on social network applications, such as Twitter or Instagram. Until now, these apps had 60 Hz limitation, which consumes less energy. However, it will be noticed that many older iPhone users (iPhone 11, iPhone 12 …); who do not have a 120Hz screen, are also affected.
It is not uncommon for the installation of an iOS update; to cause a sharp drop in the autonomy of some iPhones. In recent times, each operating system update has come with a series of complaints. However, this is a completely normal phenomenon, and, most of the time, temporary.
Indeed, the installation of an update activates a series of tasks in the background. These various tasks, such as battery calibration, drain battery life. It only takes a few days for the calibration to be complete and everything to be back to normal. Nevertheless, Apple is never slow to offer a patch to resolve a possible failure.
Also, the new iOS 15.4 brought 37 new emoji, support for adaptive triggers in the DualSense controller, as well as the ability to customize buttons on all connected gamepads, a widget for the Wallet app (in the US), notes for saved passwords in Keychain Access, and others. The new mobile OS also supports new AirTag anti-surveillance features and a new Siri voice.