iPhone 6s iOS 9.3.5 Problems
It should come as no surprise to learn that Apple's iPhone 6s iOS 9.3.5 update is still causing problems for some iPhone 6s users.
iPhone 6s users are complaining about battery life issues, problems with Bluetooth, issues with Wi-Fi, problems with iMessage, issues with links in certain apps, random reboots, and more. We expect the number of complaints to grow.
The good news is that we still haven't heard about any widespread iPhone 6s iOS 9.3.5 problems. For the moment, they appear to be isolated to a select group of iPhone 6s users.
That said, we fully expect complaints to pick up in the days ahead as more people discover the bug fix update. This is precisely why we recommend doing a little prep work before you install, even for an update of this size.