hi everyone had the same issue few weeks back. i browsed regarding this problem. most of them said it was solved with changing the flex cable. i was then in vizag. showed it in lg service centre. they said we have to change the display. went to another shop he to said the same. i was not convinced. later i showed to in hyderabad at lg service centre again. i was ready to change the display. i just told him what i read in internet. to my shock he just changed the flex cable and issue was resolved. i just felt both guys in vizag wanted to make money. felt it is my responsibility to share this with u all. CHANGE THE FLEX CABLE.