MacDevil7334
Contributor
My conclusion is that I don't think that the serial number will really make any difference on the phone production quality.
This. I had a space gray that was a DNP serial number and the display was noticeably yellow. Decided to switch to silver this weekend. My new unit is a DNR serial and the screen is much better. Keep in mind that the factory identifier on the serial number tells you where the final phone was assembled. It doesn't tell you anything about which factory the display panel (or any of the other components) was sourced from.