apparently it wasn't the actual update and if you just used whats on there it could brick the system
from albert http://www.neogaf.com/forum/showpost.php?p=90704535&postcount=21
That file was never designed to replace the day one update. Its a recovery file in case something goes wrong. Instead of risking customers get themselves into a bad state by installing the file, we are going to troubleshoot on a case-by-case basis. It is not a replacement for the online update.








