Violet or blue screen appears when: surf on Google Maps and Earth, read news Play store (Photo and caption by Design Material), use the Chamber of Google (before and after removing a photo are the 6 blue zones but not affect the image); blink graphics in games like Monument Valley although Plants vs Zombies 2 does not affect them at all. There were no problems at first and my G2 was purchased with KitKat factory. It could be an app or a problem with the LG PC Suite in which he failed to back the first time and I had to restart the other hand, I keep processes in the 2nd level when I play or read but persists. If I need to format the G2, could you explain to me how, please? Thanks for the help ...