First off nice Ciri profile picture! (big fan of the Witcher here, and im really hoping thats her). If Its turning on and the LCD is good thats a good start for sure. This may seem like something a little insane to think about, but I would consider trying to open up your Kindle and unplugging the LCD/Digitizer and plugging it back in. [guide|71768] This is a guide on how to do that as well. You don't have to take the screen out, just unplug the little lego connector and plug it back in.