So there's a site, nba2k13skillmodfree.blogspot.com, that claims it has a mod for NBA 2K13, but its download has a survey that I tried to bypass for an hour, to no avail then at last complete a stupid survey and get the tool. I've heard of about 3 different offsets to modify when putting the .CMG file in Hex Editor/Workshop, but after I mod them, Modio recognize it as a package and refuses to rehash and resign it. (P.S. the flash drive issue has been solved, and I know the original .CMG isn't corrupted as, before modding, you can rehash and resign it)
survey sites are mostly fake sites,if you want unlimited skillpoints you should downloading cheatengine and use my download.