Also, check if your power saving is on or off. if its on that also reduces the brightness. You can even try keeping the adaptive brightness off and control the main brightness setting yourself. It might be that you are in a dark room and the adaptive...

Generally the phones brightness is being controlled by the app which is running, in our case i.e netflix. In the screen shot see that there is a verticle slider on the left side of the video controls which is controlling the brightness, if you increa...

When you watch netflix, it's netflix which controls the phones brightness. What you need to do is when you play a video on netflix. Touch once on the screen to bring up video controls, on the very left side of screen you'll see the slider to control ...