Grundig 520 region-free hack

Note that this hack will ONLY work until your player is unplugged from a power outlet, after which time it will need to be re-applied

This hack also works on the Grundig GDV-520

Reports indicate that newer versions of this player's firmware may not allow playback some Region 1 titles from Warner Brothers

To convert this player to Multi-Region

1. Press the Menu button on your remote control

2. Press the buttons 1, 6 and then 7 on your remote control in order, one at a time

3. Press the Mute button on your remote control

4. Exit the Menu and insert the disc to play

Added on the Forum by Jon