The issue really comes to light when you use a screen filter, I use the app that is literally called screen filter. If you set the app to about 20% and then you go into the settings menu you start seeing microsecond white flashes when backing out of and entering new menus.
Does anyone else experience screen flicker on there M8. I like to know if its my phone thats the problem or the screen filter app. If someone wouldnt mind testing my steps above out, it also helps if you have the screen filter on in a dark room as the flashes become even more pronounced.