For most images, it's possible, and there are comfortable tools for doing it. However, country protection can be performed twice, once by the console (this can be patched easily) and once by the game, this is more difficult to overcome, some games refuse to play on any but their "native" consoles. Visit SegaXtreme and click on "Help & FAQ" in the menu on the left. Find SatConv 1.2 there
With this tool you can change the country code setting of an image.
If it doesn't help you... tough luck.
Oh and btw you need to perform the swap trick or have a modboard installed for your copy to work