The good news is that 2K has already issued an official response about the problems and for those that want to know how to fix NBA 2K17 error code EFEAB30C or 4B538E50 here is the official fix from 2K.Īs you can see, 2K state that the problems are due to you not having the latest data download for the game and part of the issue may be that the download isn’t available automatically. However, 24 hours later we can see that the problems are continuing for a lot of players with many complaining about getting the NBA 2K17 error code EFEAB30C and asking how to fix it. We know that 2K have been having some serious issues with NBA 2K17 servers on December 11.