Answer to: Flickering screen on low back lightFinally got this fixed. it sounds like the reason for this is that since the latest update your phone cannot decide whether to use hardware or software back light settings. I managed to make the problem go away by doing this: Go to settings >> system >> About device. Find "Build number" and click 6 times fast on it. You will then get the message saying: "You are now a developer" Come back to Home Screen, and then go back to Settings >> system >> Now you will see the "Developer Options" Now go to Developer options >> Drawing Section or Rendering Section >> Find "Turn off hardware overlays" or "disable hardware overlays" >> This will force the phone to always use GPU for screen adjustments. no more flickering.