Yamaha DVD-S540 region-free hack

Also works on: DVD-S550

Multi-Region Hack:

Press the Open button on your DVD-player to Open the drive tray

Using the remote press 9 9 9 9 on your remote control

Press the 1 button on your remote control for region 1, 2 for region 2, and so on, or 0 for multi-region

Press OK and the tray will close

Reset the unit by powering Off and then back On again

Didn't work, or found a better way? Send us your version.