If you buy a new bittboy (v3) and want to replace the included OS with CFW v3.6 you need to write it with win32diskimager or similar, not just copy the files to the fat32 partition as the pdf guide shows.
Personally I'd use a new microsd not the included one, mine came with some corrupt/unreadable files.
Well, i own a V2 Bittboy with CFW 3.4. I just want to update to 3.6. Is it Ok to just follow the pdf guide?