When I unplugged my phone from the charger this morning, I noticed that it took a while to wake up the screen and turn off the green LED. After that, it seemed to be working normally, until a few hours later. I went to plug in a USB drive through my USB OTG cable, and my S3 would not turn on at all. I've tried plugging it in, pulling the battery, booting into recovery, all with no response. I cannot get any lights, vibrations, or reaction from the screen. My computer will not recognize that anything is plugged in when I connect it either. I rooted the phone weeks ago, and have not flashed any kernals or ROMs, so I'm not sure what could have caused this. If anyone has any ideas, please help. Thanks.