Bluetooth can't be turn on. No toggle - loading icon instead.
I'm recently experiencing an issue with my customers iPhone 6 Plus.
The problem is if you go to Settings -> Bluetooth you can only see the Bluetooth heading and instead of the enable/disable toggle switch there's some kind of 'loading' icon. It just keeps spinning forever.
Already restored it, installed latest firmware through iTunes (both normally and through DFU mode), tried reseting network settings alone - none of these would work.
Is this a good question?