People don't like change, so this week when everyone updates to iOS 10 there is going to be a a lot of head scratching and complaining from friends and family who won't like the tweaks made to iOS. For most changes there is nothing you can do save for sticking with iOS9. Some changed can be returned back to their old ways.
Apple have changed the way in which the Home Button acts when unlocking due to the lock screen changes in iOS 10. You now can't rest your finger on the Home Button and expect it to unlock. You are required to press the Home Button in order for iOS to register that you want to unlock the device.
So, if you update your iPhone and hate the tweaks made, just folllow the directions in the below screenshot. Note that this will not help those of you who still prefer to use the swipe to unlock over the Touch ID sensor.
Update: The issue has reared its head again. It is looking more likely that I will have to do a full restore and not restore from a back up. I have noticed something curious though. Turning on low power mode leads to the the battery discharging all the way to 1%. Interesting...
Over the last few months I was seeing an unusual bug in iOS where by my iPhone would power down even at ~ 30% charge remaining. I managed to get the issue resolved after a quick visit to the Genius Bar but not before I tried every other trick in the book.
The issue arose a few months back while I was on the Public Beta for iOS 9.3. My first attempt to fix the issue was to remove myself from the beta once iOS 9.3 was made available for general release. The issue persisted. My next step was to go through the battery calibration steps. Again, the issue persisted. As a last resort before visiting the Genius Bar I restored my iPhone, again the issue lived on but I should mention that I restored from an encrypted backup. Looking back, this was never going to do any good given the root of the problem.
My next thought was that the battery itself was the issue, so I set up a Genius Appointment. The Apple Genius ran the usual diagnostics from which I was expecting to see a less than healthy battery. As it happens my iPhone 6 battery still has 84% of its original capacity. What the diagnostics did show up was a high level of third party and system applications crashing in the background. As there were no apparent hardware issues the next step was to wipe the device and start from scratch. Before doing so the Genius suggested the possibility that just wiping the settings back to the default might work. If not, I could go ahead with the full device restore myself.
As it happened, restoring just the settings worked in my case. The Apple Genius's theory was that carrying backups from phone to phone, which I have done since the 4S, resulted in something getting messed up in the background and the OS was tying itself up in knots until it shut itself down. Who knows, but if you are having mysterious shut-downs, restoring your settings could be worth a shot.