Problem in CriminalIntent Camera

#1

Good evening,
I have finished CriminalIntent app, and tested it on Genymotion many times and it works good, but when i tested it on real mobiles such as my Lenovo K5 plus, Camera Button is disables ! … i have checked permissions in my mobile and seemed permissions are set good as default … i have tested the app on other Samsung mobile such as Galaxy S4 and Galaxy Premium and the app works correctly …
Can you please help me ?

sorry for my English and Thank you …