Okay so i got the 550 replaced, this was the 4th replacement, LOL, i couldn't update about my side of the progress since i was busy with some work of my own, so anyways mine is still the april model, but the good thing is this screen is flawless, no dead pixels, flashing pixels, hot pixels, no specs of dust, no uniformity issues, plus even the green pixels don't show up till level 57 of brightness.
I guess everyone else has got a call about the firmware update except me, does the new firmware do anything regarding the green pixels ?
Also i am not breaking this one In using the break in images, just regular TV viewing and gaming with no HUDS, since i won't be getting it calibrated, cos we don't have high tech calibrators in INDIA, and i don't want LG touching the display, cos i know how those people are.