The screen sleeps while scrolling instagram. The phone doesn't get locked. I can hear all the instagram video sounds but the screen gets blackened. Also while on a call, the screen is more sensitive to sensors. If I want to use another app during a call, I need to first lock the phone and then perform my task. I should be able to directly open other apps. Also in the app like telegram,the video keeps playing in the background even though I have pressed the home button.
