iOS 9.3 allow button not works

[HowardCsie]

iOS 10.0 all works fine.
However, on iOS 9 Device, when i tapped allowButton , then it just turned into denied.
Is there anyone knows what 's going on?
I will be grateful for any help you can provide.

[bre7]

Please test using a real device 👍

[rajubd49]

I'm also having problems in iOS 10.2 simulator. Contacts permission is denied automatically If I press enable button. Location permission enable button tap is not working.

[nickoneill]

If it wasn't clear before @rajubd49, please test on a real device. The simulator is not a reliable place for permissions testing.

[rajubd49]

Yes, it works on real device. But we don't always get the chance to test on real device. That's why I raised this issue. Anyway, thanks for your reply.