Hi guys, I've been searching for information on how to upgrade my version of CIOS to rev9 before updating my console to firmware 4.0 so that I can use the USB feature. I have a copy of the CIOS36 rev 9 installer, but I do not know what version of CIOS I have now (I think it might be rev5?). Does it matter what previous version I have if I want to upgrade to rev9? If not, then do I just run the CIOS installer like normal? I currently have firmware version 3.3U and have the Homebrew Channel and Wadmanager v1.3 installed. Sorry if this has been discussed already, I couldn't find any info in my search.