Notification Lights Problem

[whosnext]

Hi,

I'm using xperia xz1. I'm chancing notification lights for whatsapp and other app. but doesn't not work.

Do you have this problem? And how this fix?

Thanks

[Uliwooly]

@whosnext

Elaborate as much as possible

[whosnext]

I want to see a purple light when a message from WhatsApp comes up. I am changing settings but not working.