i have been currently using S8 plus for last two months. It was performing in a perfectly smooth way, but last week i updated my mobile as in settings "update notification" was popping up. That system update was for more than 650mbs. After that update i am facing system ptoblem, like my mobile screen gets semi black if i am shifting from one app to another app. When my mobile screen is semi black most of the functions are semi stopped, like volume gets to half. Then i need to close all the "Running apps" and then reopen the specific mobile application.This happens mostly when i am using whatsapp. Kindly tell me why this is happening? Is this some software update glitch or what ?
