Hello,
I have a Folio 13 1020us which works fine when it turns on, but 75% of the time I try to turn it on or bring it out of sleep mode, the power button simply doesn't work. I'll push down the button as much as I can, but nothing will happen. When I've turned it off, no lights come on around the keyboard or anything. When I've only put it to sleep/hibernation, some lights will blink, and I can see the faintest image of the first booting screen for a few seconds before it goes black again. I tried configuring it so that it will turn on with a button press, but that did not work. It also has a non-removable battery so I can't easily take it apart and see if it's a battery issue. I would like to see if there is another potential solution before I go through the process of removing/replacing the battery. I've had the computer for a few years now and haven't used it very much because of this issue, so it's off warranty.