I bought a radio shack pro 651 at a pawn shop the other day got it home and turned it on and noticed on the welcome screen it says psr-500 and the scanner is not receiving correctly. It will not receive p25 truncking systems on the uhf band. I think it might have something to do with it saying psr-500 instead of radio shack on the start up screen. its definitely not working as well as my pro 106. my question is how do I fix the problem of it saying psr-500 on start up.