PS4 Slim sometimes spins up, but displays "Unrecognized Disk Error"

Hello, there could be multiple reasons to why the PS4 slim is not detecting your disks, I listed down a few options you could try out before replacing the entire thing:

• Dirty or Scratched Disc
  • Try multiple discs, including a known working one.
  • Clean the disc with a microfiber cloth and isopropyl alcohol.
• Dirty or Faulty Laser Lens
  • Solution: Use a cleaning disc or manually clean the laser lens with isopropyl alcohol and a cotton swab.
  • Repair Option: If cleaning doesn’t work, the laser assembly might be failing and need replacement.
• Faulty Disc Drive Gears or Rollers
  • If the drive clicks and resets, the rollers might be dirty or slipping.
  • Solution: Open the PS4 and clean/lubricate the rollers.
• Mechanical Failure (Eject Mechanism Issues)
  • If the drive is struggling to grip and spin the disc properly, the motor or gears might be worn out.
  • Solution: Inspect and replace faulty gears or motors.
• Damaged or Failing Laser Module
  • If the laser is failing, it won’t read any disc.
  • Solution: Replace the Blu-ray laser or the entire disc drive.

Unrecognized disc, After installing lastest System Software version 12.02 ??

If Yes, I got the same problems, unrecognized disc after installing 12.02 system software.

I also found 3 User said unrecognized disc and 1 user unrecognized game digital license.