Please help! My Aspire A515-51G laptop powered down suddenly, and now it won't turn on. I was watching YouTube, and suddenly the screen stopped working but it was still on. I turned it off and shut the lid for about a minute, opened it again, turned it on but the screen doesn't work!! The blue light on the side comes on, flashes off briefly and then comes back on. The screen lightens when this happens but it still won't turn on. I'm gonna be screwed when my mum wakes up. Any ideas on how to fix it or will I have to go see a technician...? I really don't have the money for that, so it will have to be a last resort. Thanks!