Some early adopters of the iPhone 6s and iPhone 6s Plus are reporting that their new device randomly shuts down without warning, despite sufficient battery power. It is unclear at this point what is causing the issue, but there are signs iOS 9 is to blame.
iPhone 6s and 6s Plus adopters have been reporting the issue on Reddit, Apple support communities, and the MacRumors forum. Many say that once their device has shutdown, the only way to turn it back on is to hold down the power and home buttons for ten seconds to force a restart.
A small number of iPhone 6 owners are also reporting the same issue, which suggests it could be related to iOS 9 rather than faulty hardware. A poll conducted by MacRumors found no common reason behind the shutdown, but those running iOS 9.0.1 appear to be most affected.
— David Barnard (@drbarnard) October 2, 2015
Interestingly, many also report that their home button feels abnormally warm when they attempt to restart their device.
Perhaps this is an issue that can be easily fixed in a future iOS 9 update, but for now, it’s causing a small but significant group of users a big problem. We’re yet to hear anything from Apple, and it’s unlikely the company will acknowledge this problem publicly, but we will of course update you if it does.