Why your iPhone and iPad don't fully disconnect from Wi-Fi and Bluetooth in iOS 11Don't worry, nothing's wrong with your phone: everything is as Apple intended it.
If you've recently installed iOS 11, you may have noticed that no matter how many times you toggle Bluetooth off in Control Center it's still automatically on when you reboot your phone. It's not just you. Nor is it a bug — that's actually just how the operating system works. Not a huge deal if you're privy to that particular information, but without seeking out the specific support page on Apple's website, most of us who were used to iOS 10 had no way of knowing about this feature change.
Now when you tap to power Bluetooth or Wi-Fi down in the new Control Center, it doesn't shut them off completely. Instead, it just disconnects you from most accessories or devices you may have been connected to and disables auto-join capabilities. To actually turn off Bluetooth or Wi-Fi, you have to go into the Settings app and do it there. All of this is because Apple wants to keep users' connection intact so...
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Why your iPhone and iPad don't fully disconnect from Wi-Fi and Bluetooth in iOS 11
