Recently, I won a broken PSP on eBay that I hoped to use for parts in case my other PSP dies. I just received it yesterday and it turns out to be in better condition than described, as it powers on and loads UMDs.
However, there is one problem about it, and that's with the right shoulder button. It does not feel or appear to be stuck, yet when I load GTA on it, it does not work at all, yet seems to be stuck because when I try to drive a vehicle, it acts as if the right shoulder button is being held down.
What could the issue for this be? Just a simple case of the button being stucked somehow? Or could it be a more serious firmware/software problem? It is version 2.70, so should I try an update to see if it fixes it, or should I break the seal and take it apart?