I believe this is a documented issue already, at the very least it was covered when the 7250s were upgraded, at the Vrizon site, they were clear that it should not be attemted until such time as everything was first setup at their end. The few people that tried it without went through hell, and had to wipe their units and reload everything and wait till Verizon was through in order to try it. One thing I have learned about BBs in general and not carrier specific is that we need to exercise patience when doing upgrades and the like. We cant be in a hurry to get things working. Remember Gallo wines, "We will sell no wine before its time." That applies to BBs too.