Apple's iOS 10.2 update has been getting bad reviews lately for intensifying the bad battery life issue seen in the previous version of the operating system. Many consumers have reported experiencing the so-called 30 percent battery bug after updating their Apple devices to iOS 10.2.

According to the news, the 30 percent battery bug in iOS 10.2 can be present in iPhones that are compatible with iOS 10, except the iPhone 7 and 7 Plus. The bug causes the device to shut down abruptly when its battery falls to the 30 percent mark.

As of late, Apple fixed the 30 percent battery bug in some batches of iPhone 6S models, but the tech giant stressed that the problem wasn't seen in other phone variants. The tech giant recently made iOS 10.1 and 10.11 illegitimate, which means that iPhone, iPad, and iPod touch users aren't allowed to downgrade to those versions from iOS 10.2 anymore.

Apple announced that it will provide free repair to affected iPhone 6S models as long as those units were bought between September and October 2015, though some users also spotted the same battery issue in older iPhone models such as the iPhone 6 and iPhone 5S. It should be noted as well that Apple hasn't updated its battery replacement program yet for all those affected iPhone models.

Apple said that the battery bug in iPhone 6S models was caused by air-contaminated individual battery components. They said that some of the shutdowns "may be normal because the iPhone will shut down to protect its electronic components," according to a notice from Apple's China site earlier this month.

Apple's iOS 10.2 update introduced 72 new emojis, a brand-new TV app, and new wallpapers for the iPhone 7 and 7 Plus. Changes were also made to the camera settings and the Messages, News, Photos and Music apps.

In other news, it's quite common for many iPhone users to fret about dwindling space on their devices. When this happens, users can free up space by clearing out their website cache and history, stream music instead of downloading songs locally, delete text messages, and backing up photos and videos.

Here's the video about how to save battery:

Source: university herald