I can get this dot to move around the picture with moving the phone. It always under light, even outside on a fairly bright day, I have received pretty bad iPhone! Build week 34, received yesterday! Have dents a scuffs, has clicky screen in one corner, has this green dot issues, has damaged the headphone jack causing the headphone connector to sit slanted, I even have damage to my Lightening Cable, and also a Home Button that doesn't sit straight. Have been in touch with Apple, should be receiving a replacement tomorrow!