I took mine in saturday and showed them a couple of pictures i took indoors with normal to low lighting. I literally took 10 pics, some back to back with no movement.
Some came out with a green hue to them so once they saw that they did replace it.
I was wearing black shorts, took a close up of those and the very fine white threading embeded in some parts of the shorts came out greenish. That sealed the deal.
replacement device seems OK. But battery life is not as good. However i had the other one for a week. I am thinking i still need to break in the battery.