I already fixed it, but what does this Wii brick mean? It's not like it says "The Wii is corrupted." or anything, but rather this. If you can't see the image, it's a bunch of random green pixels.

For how I fixed it, I just had PriiLoader and went back into WiiModLite to change the region back.I sometimes get the same, or something VERY similar, when I start my Wii. This only shows up for a second with my TV showing NTSC-[some numbers] and then it switches to PAL-60 when the health screen comes on.
My Wii is a PAL console and I set it to 60hz output otherwise I couldn't play Project Zero (Fatal Frame) 2 Wii Edition, don't know where that NTSC comes from.
EDIT:
@m1x3rr: You said you already fixed it, woul you like to share how? Maybe someone else might benefit from that in the future.