My xbox was Avalaunch and then i uppdate so it changed inte Evox. I want to get back avalaunch. so i rename the file Evox to somethigs else in C drive and put Avalaunch.xbc and reboot my xbox. Now i cannot go inte my Dash board. What happend, I try many time it won't work. When i start my xbox it shows.... XBMC and in the site EVOX and then a message come upp Service Required. Call customre support. Any body can help me with this, I would be very thank ful.