That is not a syscheck, that's actually the bootmii readme.
Is it of any help?
When you say partial brick do you mean full brick? A black screen, Wiimote flashing certainly sounds full to me.
More info please (useful if possible)
Oh and one final thing, why did you post this in Newbie section? We do actually have a Bricked Issues section just for things like this. **Moved** I'm such a nice bloke.