Yesterday evening, I was charging my MBP, and as I went to go plug in my phone to the USB port, the screen went completely black. I have NOT been able to re-start it. I changed electrical outlets, so I ruled out that possible problem of it not charging. Whenever I plug in the charger to the side, the green light comes on, but it is very dim and flashes. I know for a fact my MPB was not fully charged when my phone was plugged in. I also tried the SMC reboot instructions to the letter, and they have not worked either. Any suggestions are greatly appreciated; I really just want this thing to start!