im rooting my cdma htc hero with google from sprint and one thing people say to do is nandroid. i read that you do this after rooting and before updating roms, but i have to ruu before i can root because my build number is 2.27.651.6 and has to be .5 so this will clear it off... anyway to backup device before i do this? anything other than nandroid? or a way to do it before rooting?