Hi, I own a S3 on Orange UK. I've randomly started having a screen turning off problem. It was working fine until this morning. When I turn it on it goes to the home-screen but 3 seconds later the screen turns off, and the notification lights turns on (despite having no notifications!). I tried shutting it off/restarting it, however after pressing the power button the options do not appear on screen. I've also took the battery out and put it back in but to no avail. Any help would be appreciated.