Bluesky DV-710 region-free hack
Also works on: DV-900
With no disc in the drawer type the code 1 6 7 1 9
This brings up a hidden menu (If it doesn't work 1st time open & close the drawer & try again after a few seconds)
Select the 1st line of the menu and press Ok
Then select 0 for multi-region - CAUTION do not touch any other settings
Press Exit to leave the menu and the hack is complete
Didn't work, or found a better way? Send us your version.