After 2 min. play game I found few days ago purple line, after 3-4 minuts it´s gone again. As I understand then it comes with temperature adn leave when temp get lower. Phone rooted. So my phone seems to move to repair? Was that phone what was in market in showcase and as I understut then it was that first phone what arreived to tah shop. Always have in silicone/plastic armory case.
