We have inspected your PS4 system. There are problems with the mechanism and timing assembly in the Blu Ray drive. In addition our technician found the electronics to have damage to the critical components to the married integrated circuit set. The total cost for repairing the Blu Ray DVD-ROM drive, resetting to the proper alignment, cleaning the unit and free return shipping is $137.95. That includes a 90 day warranty on the Blu Ray DVD-ROM Drive. As an alternative, we can ship back your unit to you. The cost for inspection and return shipping is $29.95. Please make payment below to proceed.