The iOS 15.4 update is causing a decrease in the autonomy of some iPhones. According to testimonials, the firmware installation has a negative impact on the battery of Apple smartphones.
A few days ago, Apple started rolling out iOS 15.4 update for all compatible iPhones. This new version of the OS includes several major new features, such as better compatibility with the DualSense controller, 37 new emojis and the ability to install updates with mobile data. Above all, the update allows you to unlock your iPhone using Face ID even if you’re wearing a sanitary mask.
Unfortunately, the update also comes with reduced battery life on some iPhones. According to testimonials of some users on Twitter, installing the firmware has significantly reduced the endurance of their devices.
“Battery life in iOS 15.4 is really bad. After 24 hours I lost 80%, but the screen was active for no more than 2 hours and I only use Safari, YouTube, Instagram and Uber, one user attests. Another confirms that “my phone is stuck at 95% or 97% charge and then when I unplug it it shows 100% maybe after 5 minutes or after reboot and then drains fast.”
iPhone: iOS 15.4 update causes serious battery life issues
One can assume that the decrease in autonomy is related to the 120Hz screen activation of the iPhone 13 Pro. Apple has already activated the high refresh rate on social networking applications, such as Twitter or Instagram. So far, these applications have been limited to 60 Hz, which consumes less power. However, it will be noted that many older iPhone users (iPhone 11, iPhone 12…); Those without a 120Hz screen are also affected.
It is not uncommon to install an iOS update; To cause a sharp decrease in the autonomy of some iPhones. Recently, every OS update came with a series of complaints. However, this is a completely normal phenomenon, and is often temporary.
In fact, installing the update activates a series of tasks in the background. These miscellaneous tasks, such as battery calibration, drain battery life. It only takes a few days for the calibration to complete and everything is back to normal. However, Apple is never slow to offer a patch to resolve a potential failure.
Also, the new iOS 15.4 brought 37 new emoji, support for adaptive triggers on the DualSense controller, the ability to customize buttons on all connected gamepads, a widget for Wallet (in the US), notes for passwords saved in Keychain Access and more. The new mobile OS also supports new AirTag anti-surveillance features and new Siri voice.