HOW DO i UNLOCK THE CODE MODEL NO QPD130B [63120

Ensure the child lock feature is disabled. Attempt to open the disc tray. If the issue is not resolved, turn off the DVD player. Unplug the power cord from the electrical outlet for 30 seconds. Plug the power cord back into the electrical outlet. Attempt to open the disc tray. If the disc tray still does not open, simultaneously press the POWER + STOP + EJECT buttons.
If the disc tray still does not open, simultaneously press the DISC1 + STOP + EJECT buttons or the RETURN + ENTER+ POWER buttons.
If the issue is still unresolved, service may be required. The Sony eService Web site at http://eservice.sony.com/ can assist you in obtaining service from a Sony Service Center or locating a Sony Authorized Servicer.