Make my Amstrads region free

[dr_alk68]

Hi all,

I have a 2 player of Amstrad:
- DVD/VCR Combo with MPEG4 (DXV200) and
- Portable MPEG4 DVD Player with 7" TFT Screen (DTX703)
both a REGION 2.

How 2 make them REGION FREE?

thx 4 who can help me.
best regards
dr_alk68