Hi, first sorry, English is not my native language. I bought an Iphone 6s, overall, the phone is good, except for a slightly darker tinge on the left side, but the display have in the lower left and almost at the bottom right corner a black dead pixel, or at least I thought so. But I found that,when the display is turned off,then i can saw white dots exactly where they are defective pixels, so it will probably be some dirt or dust. Pixels would do not go to see when the display is off,also when moving with screen on,sometimes dot is almost invisssible from angle. I was back in store(not Apple), but I can not replace it, only sent for repair and here in our country we have a very bad authorized repair, so I'll wait and at the end of the warranty will send it for repair. Do you have that experience, or similar dots?