PS4 Disk Drive Problem

So my PS4 Slim will take Disks but it will pop up with Unrecognizable Disk. I’ve noticed opening it up and putting one in that the disk doesn’t spin but it still tries to read the disk. How do I fix this problem cause I watched someone said the spinner just needs to be dusted off but I’ve tried and it didn’t work. After giving a push through the drive it spins perfectly though.