According to a report, the issue that's causing iPhone 6s batteries to unexpected shutdown is bigger than originally anticipated. To address the issue, Apple started offering free replacement batteries to the affected customers. And that is also why Apple decided to update its iOS to diagnose the problem on iPhone 6S battery issues.
Apple Will Update iOS For Diagnose
According to MacRumors, a few days after issuing a message on its Chinese website regarding the battery shutdown issue plaguing some iPhone 6S users, Apple today added a new message onto the site. The update reiterates on the cause of the issue -- some batteries were exposed to "controlled ambient air" during manufacturing -- while also expanding the scope of the affected range of customers facing the problem.
In the original message, Apple noted that "a small number" of iPhone 6s smartphones made in September and October of 2015 were facing unexpected shutdowns due to their prolonged exposure to controlled ambient air. Now, Apple said that it's discovered a few customers "outside of the affected range" who have also been facing unexpected shutdowns of their iPhone 6S devices and "will add an additional diagnostic feature to the iOS software update that is [to be] released next week."
“We are including additional diagnostic capability in an iOS software update which will be available next week. This will allow us to gather information over the coming weeks which may potentially help us improve the algorithms used to manage battery performance and shutdown. If such improvements can be made, they will be delivered in future software updates.”
Apple Insider reported that tool will gather data that could contribute to algorithms for managing battery performance and shutdowns, Apple said, noting that if it can make improvements, they'll be delivered in subsequent software releases. The iOS update coming next week is presumably iOS 10.2, which is already in its sixth beta and likely close to completion. Its main features will actually be a dedicated "TV" app and single sign-on support for TV providers.
