I just bought MBP Retina display and while I open AppStore icon, it gives a recommendation to do 3 updates (Itunes, Mountain Lion, and IPhoto).
I did one update (ITunes) and after that I reboot as the system required to reboot. While doing the update installation, I plug the adaptor for recharging the battery.
Unfortunately It won't restart and it keep shut off. I've tried to press power button several time, or pressed shift+control+option and power button same time for several times. But it still won't start up.
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)