Why aren't incoming calls appearing on the screen?

[AC Question]

Incoming calls not appearing on screen

The phone rings but the incoming call screen is not popping up

 

[VW Maverick]

Re: Incoming calls not appearing on screen

Welcome.
What device do you have?

Mav.

 

[Sergio77]

Re: Incoming calls not appearing on screen

Welcome.
What device do you have?

Mav.

Hi
I have a Lenovo Vibe K5, it comes with Lollipop.
It's new, i have only installed a launcher(zeam) and changed the ringtone to a custom one