Hi i have a ps4 slim that wont read discs says unrecognised disc. It wouldnt update the console at first but i found if i disconect the bd drive it updates without error. I put a new laser tray in still wont recognise discs. I tried the tray in another ps4 slim and it worked. It takes in discs and spins up and the laser even lights up just wont read the discs.
Any thoughts on what it could be. New to consoles repairs.
Any help much appreciated.