When installing leaked/beta OS's I've always deleted the vendor file as advised. In a recent ordeal with blackberry support, the "tech" guy (not so much, but...) made it sound like deleting vendor files caused problems within the operating system. I have never noticed any issues, but as i don't know the importance of the vendor file, i can't really say he's wrong.
My question is... would deleting the vendor file, and pasting a vendor file from an official operating system from your carrier (e.g. T-mobile) cause any issues? Can anyone see how this would affect anything?
Thanks for your thoughts!