1. Press the Open/Close button on your remote control
2. Press the Clear button on your remote control
NB: This is located next to the Zoom button
3. Using your remote control, press the buttons 1, 3, 6 and 9, in order, one at a time
4. Press the 1 button on your remote control to select region 1, 2 for region 2, and so on, or 0 for multi-region playback