Samsung HT-DM150 region-free hack
Also works on: HT-DM550, HT-DS400, HT-DB600, HT-WP38
Switch Off player and Unplug from mains wait 30 seconds
Reconnect to mains
Turn On player with remote
Press Enter on the remote
Press 8 4 2 6 9 on the remote
Press Enter on the remote
The tray will Open and player will power Off and Close tray
Switch On power from remote
Player is now Region Free
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