Vyom said:Else, think why you didn't go for N7.
How can an app fix a hardware issue?
it CAN! !! !!!
If the pixel become white on black wallpapers and become black on white wallpapers, then its not dead and can be fix by such apps...
@ op do you have this kind of problem?
try this app and run it for 20-30min *play.google.com/store/apps/details?id=ru.androidteachscreentest
I think in your case they are stuck one and not DEAD.
Google/wiki about STUCK PIXELSApps wont fix hardware issues no matter how much you want...