Sony DVP-NS57P/B

  1. Plug the DVD Power Cord to the wall jack, but DO NOT turn on the player
  2. With the remote control, press: DISPLAY, TOP MENU, CLEAR and POWER
  3. It will enter in the Service Mode
  4. Choose option 2 and then 4
  5. It will ask for an Input Code and Current Code (its 5 spaces), press 1245 and then Zero
  6. Leave all Zero erasing 1245, and on the bottom field all Zero too, then press Enter
  7. So the DVD Display will show a Zero (all Region-Free), then press Power to turn off