how to enable siri when screen is locked on IOS 10.2
When you open Settings -> Siri, there is an option "Access When Locked" which is grayed out.
But there is an option to enable it if you open "Touch ID & Passcode". After you enter your passcode, scroll down to the section "Allow Access When Locked". Under this section Siri is disabled but you can slide the button to the right to enable it.
But once you leave this screen, it gets disabled again. Is there a way to fix this issue or it is a bug?
The reason I need it enabled is because I use Blueant Commute hands free speaker phone in the car which used to trigger Siri with voice prompts but after 10.2 update it does not trigger Siri when iPhone screen is locked. It works if screen is unlocked.
I will appreciate any help.
iPhone 6, iOS 10.2