So I bought a dodgy PS3 which was fully working when this guy shown it to me but seems to had deteriorted since then, so I thought I'd have a go at fixing it myself. So first thing is the disc wont always be accepted, maybe once every 10 times it will work and will play the disk fine without any problems and will also eject. However if I turn off the PS3 then it will not eject on the next boot. Also if I put in a disk when the console is off, then it powers on. I think the sensor board is the culprit.
Also on games which I have downloaded the first time I play them they are fine and work flawlessly, however, if I reboot my console it doesn't work after that and I just get a black screen after pressing x to start up the game. But this isn't my main priority. Any advice would be great.