Sampo DVE-660 region-free hack

Checking the firmware revision:

Press Setup then enter 1 2 3 4 5 on the Remote Control

To change Region:

Press Setup then enter 3 8 8 8 3 on the Remote Control

Enter the required region ID or Bypass (Will Play ALL Regions except some Region Code Enhanced Discs)

Setting CSS and Macrovision:

Press Setup then enter 5 9 0 4 1 9 on the Remote Control

The CSS can be enabled or disabled

The MACROVISION can be enabled or disabled

Adjusting PAL/NTSC Modes:

Press Setup then enter 7 2 5 5 5 on the Remote Control

If the above modification fails to work then you may wish to try the modification for the Sampo DVD-520 above.