Not getting notification on WhatsApp. Only getting msgs when open that application
Tray turn off "developer options" from settings, it solves my problem
Go to settings>sounds and notifications and be sure that notifications are not muted
Go to security>speed>auto start management>then auto start apps you want
this is possible.. please go to
power manger-> background app management-> unrestricted "whats App"
successfully changed the problem..
Lenovo software is the worst i have ever come across i am going to root it and change the ui but the hardware is awesome..