The same hack as for the DVX350 works on the DVX440
You need: lg.dvx276.vdx286.region.code.hack.zip
You may find it here: http://www.sendspace.com/file/ryt1gz
Instructions:
-open the zip and burn the ISO file on a CD (e.g. with NERO-Burning ROM);
-turn on the DVD
-insert the CD in the DVD tray;
-close the tray;
-wait till the on-screen region menu appears;
-select "0" (zero) on the DVD remote (0=multi regions);
-select "pause".
Done