Try this

* Open the drawer
Press 0, 1, 2, 3, Play in sequence on the remote control
Play a region 1, 2 ,3 ,4 or any other region to see if the hack has worked!

The disc drawer can obscure the Infra-Red sensor when open, so ensure that you compensate for this when entereing the hack.

You can also return the player to Region 2 only mode using the following sequence:

* Open the drawer
* Press ZOOM
* Press RETURN
* Press POWER