Ok. I was playing BattleField 3 then I had to leave for a sec so I left the match and when I came back the screen was black but not completely but it was glowing. I hit random buttons om the contoller to see what happen, nothing did. Next I try to hold the power button (not really for a long time) that didn't work. My last option was to unplug my PS3 slim from the back (which I did). It is working fine now..
Is there a way to prevent it or how to fix when when if it ever comes back?