Hi Davinchee,
this is the last FW of CQ: http://www.support.xerox.com/support/colorqube-9300-series/file-download/itit.html?contentId=117325
But the best solution is: upgrade the CQ 930x to connectkey, and after install the last CQ FW:
http://www.support.xerox.com/support/colorqube-9300-series/file-download/enus.html?contentId=126208
Bye.