The disk drive won't take disks or eject. Force eject works however. It plays games. The drive always thinks there is a disk inserted when there is not. It does this no matter what position gears are in. Manually pressing the two sensors on the right front of the drive doesn't do anything and won't turn the system on when on standby. I have swapped the sensor board with a good one. Still nothing. Swapped intire drive including board. Still nada. It has the 410 laser and so it has no top mounted disk sensor.
What's going on here. Will some options in the service menu fix it like rebuild database and so on. Maybe reload firmware?
Any thought would be appreciated. Thanks in advance.

