Nokia Lumia 930 has a purple tint problem
Microsoft is still concerned about the problem, however, and is said to be recalling some test samples from the Norwegian market, where the phone recently launched. According to one person, when the brightness levels changes automatically, or when brightness is set to low, gray turns into a more dark purple color.
The Nokia Lumia 930 and the Nokia Lumia 630/635, are the first two new Lumia models to come out of the box with Windows Phone 8.1 on board. If your Lumia 930 came with the purple tint problem, let us know if the quick fix helped you, by dropping your comments in the box below.
source: Henning.ms via WMPoweruser