I bought a PSP 2000 (yuck) from a friend that had no battery.
The battery took ages to arrive, and when it did, everything was fine for about 20 minutes, then the screen developed vertical lines.
The image isnt mine, its from a YouTube video, but its the exact same issue.
Does anyone know a fix? Some one suggested an LCD replacement.
I have just modded a Vita and that is happy with PSP games, so I think I will just use that. If it was a 1000 I would be more inclined, but the 2000 feels a bit too cheap to bother