My Asus X454M crashed/shut down (I am not good at technological terms) while I was typing a document. The indicator lights are not lit, and I tried pressing the power button and it won't turn on. I pressed it again, and it suddenly started up, and shut down again after a sec or less. No indicator lights again and nothing is happening. Please help meee. I tried pressing the power button for 20 secs and nothing happens. My laptop is more than 3 years old, and I currently have no money to fix it. And I need the files in my laptop ASAP. Please help me.