Your Blue Ray or DVD's are no longer read as before? The laser is an expendable part of the PS4 and must be replaced after some time.
We offer you here a replacement laser. Unfortunately there are several models of PS4 on the market with different lasers. Here we offer the KES496 Laser, which suits in the following PS4 Models
Also this laser has been found in the PS3 Super Slim CECH4xxx as well. So here it is not possible to see the difference just in the model number.
Other models use the laser 490A or 860A, which we also offer. As always there will also appear new models with new lasers, so be sure you have the correct model.
All parts you buy from us have the usual warranty.