I know the solution you all wrong and missleading poor people ,
The solution: when you replace the screen , make sure that the battery have to be perfectly leveld , you can see that the stick that hold the battery its not only for stickin it in place , its also for levelin the battery in perfect height with the screen , if you have even tiny gap betwen the battery and the screen , the 3d wont work for some parts of the screen , try to level the battery with something ot just buy original white stick strip and place it from scratch ,
Thank you please notice me if it helped you -uri kaspi