Encountered this issue with Samsung Galaxy S7 Edge within almost a month, I had kept my phone on ultra power saving mode at night to test battery back up stats this week, on switching back to the normal mode <br /> <br />Phone started to heat rapidly and battery draining super fast, the moment it fell below 66% screen started flickering and this purple static flashing frequently <br /> <br />Did not expect Samsung's quality to be so pathetic with a Premium Flagship Phone, be cautious while buying this expensive toy