Dell G5 15 broken

My Dell G5 15 screen won't turn on, I press the power button and it lights up for a second and then turns off. The screen stays black, not even the Dell logo shows up but the keyboard lights turn on. I don't know what to do I physically can't access anything. There are orange and white lights flashing on the bottom too, 2 orange 4 white to be exact, PLEASE HELP