Mine's got part of the screen frozen, then restarted the kindle. Still frozen, but I see that there's a part of the previous frozen screen moving, now the screen got better, but there's still a part frozen, I reset it again, and this time I have 1 part frozen with the pencil's background , other part frozen with the restart tree screen and an other part showing the movement and working.
According to the screen that still working, the battery is over half it's capacity, I tried removing the battery and placing it back, and I still have the same problem.
The battery was charging fine, but the computer couldn't recognize it. I'll try fully charging it tonight, let's see what happens.