Screen went black, except for narrow band at top
If your camera is not dead, It is surely dying. Perhaps just a flat cable lost connection inside your camera, But more likely the electronics is on the end of life. My DX7590, started to act strange a few year ago, but I managed to shoot pictures still. I could not look back what I had shot, but I still made lots of pictures, till also shooting was impossible. (I could get the pictures from the memory card with an external card reader on my computer. My next step was again (a better) compact, but since over 2 years now I'm using a DSLR. I have learned a lot about digital photography with my Kanon camera's.