Switch the power OFF, press the DIMMER SWITCH and BACK SKIP buttons at the same time.
STILL holding the keys down, power the machine ON
Four lines will appear in the front display. Using the remote press (1999) using the numeric keys.
The display will change to (A-0000 D-04) which is region 3
Set the region by using the following region input
On remote display to change to-
Region 1 code 00 (A-0000 D-00)
Region 2 code 01 (A-0000 D-01)
Region 3 code 04 (A-0000 D-04)
Region 4 code 08 (A-0000 D-08)
Region free code 00 (A-0000 D-00)
Push the ENTER key on the remote once the region is displayed
Turn OFF the unit using the ON OFF switch, not the standby.
Next time you start up it will be set to the new region
If you are unsuccesfull with the above code then it may be worth trying one of the resources below.