I bought my Wii in Hong Kong, and noticed it was a Korean one:
RVL-001(KOR), which is NTSC-M.
Before I got it they installed a modchip and changed it to US firmware NTSC.
But I live in Europe and would like to use some regional functions, but I can only select some South American countries, US and Canada.
Can I change my Wii to EUR? I read that changing from NTSC to PAL doesn't work?
And is there a way to find out which modchip is installed without having to open it?
1) Ask Superman to come round and use his x-ray vision. :P
2) Open it (tri-wing screwdriver)
3) Download every configuration disc you can think of and try them uintil you get lucky and find the one for yours.
I hear that 3 quick presses of reset on start-up aloso does something.
As for the region changing, well that's not my area of expertise but I think anyregionchanger AnyRegion Changer - WiiBrew
Not really doing much Wii stuff these days.