The minimum brightness is just too bright for using this smartphone in dark environment. Every night i have to use a screen filter app ( Darker-screen filter ) to minic the 0 brightness functionality. It would be great if the brightness could be lowered a little bit more on this already osm smartphone. @Anders_ASUS Thank you.
IMO the LCD's quality is good but not excellent. Also you can't lower brightness level below minimum due to display's design, not software. I don't complain though as my previous Samsung Galaxy S4 and S6's amoleds had a slight burn-in
@shiv1g Do you have enabled adaptive brightness? If not, try it. If it doesn't help check your phone against another ZF6 whether this is not a hardware problem. For me is minimum brightness on mine ZF6 perfectly ok, so I have no need to install any screen filter apps as on my previous LG phones with OLED & LCD displays.
The minimum screen brightness is controlled here core/res/res/values/config.xml - platform/frameworks/base - Git at Google10 The default in android is 10 which is pretty high, maybe Asus could lower it to 2, I'd recommend lowering it to 1 (which is the absolute minimum) but I doubt an oem would do that since it could potentially cause screen flickering although I've never seen that happen on my old leeco le pro 3 which has a cheap LCD