I bought a G505 5 month ago. There is one time the laptop cant start. All of the LED were lid but the screen shows nothing. Even the bios or monitor backlight(you know, when any monitor turns on and shows black but you can still see a dim light on the screen) did not came out. It just dark like it was turn off. The fan turns on for a few second and it stop. So, I restarted my laptop and it work again.
But today, after playing Red alert 3,I restart my laptop to boot my second OS to do other job. After shutdown, it does not restart. The problem came back again. Now, my laptop still won't turn on. All the LED were lid, but nothing shows on the screen.