How to really turn off Bluetooth and Wi-Fi in iOS 11 - CNET | iPads, MakerEd and More in Education | Scoop.it
From www.cnet.com - September 25, 2017 6:20 AM
There's something different about iOS 11 -- and whether or not it's a good thing is up for debate.

Ever since its debut, way back in iOS 7, Control Center has included convenient Bluetooth and Wi-Fi toggles. Tap one, the feature turns off. Tap again, it's back on.

In iOS 11, those same toggles are there, but they function differently: Instead of actually turning off the Bluetooth and Wi-Fi radios, they simply disconnect you from devices and networks. The radios stay on.