When the device brightness is less than. 6% phone is flickering and sometimes display don't work.but hardware is working.when I watch movie with brightness less than 9% phone display is not working but I can herethe sound of movie.after adjusting brightness phone will work perfectly.is there any solution of brightness.when auto brightness is on phone is not working sometimes.so there is issue with brightness.iam is now using auto brightness off.still if brightness is less than 10% phone display is not working