So my laptop had this problem where it wouldn't wake up from sleep when I would press or hold down the power button. I'm not sure eactly what state it would be in, wether it would shut down, hibernate or e.t.c. All I know is that the blue light on the side would blink. I would have to either plug in the chrger or reset the battery using the pin on the bottom .A nyways I can't remember if I was the one to fix it or if the problem was fixed when I sent the laptops in for repair to acer for a somewhat related reason and they updated the bios. Recently I decided to update to the the lastest bios and the problem's back, and honestly it's just really annoying. I regret doing it but I just wanted to be up to date with all my drivers and BIOS.