I'm fairly new root user and I rooted my Razr Maxx prior to any Update hitting the phone. I'm still on version 6.12.173 and I did not do a back up when I rooted. After root I changed some things such as the boot logo and batter icon etc. I never put a different rom on the phone but again with all these changes I did not do a stock back up. I can't update to version 6.12.181 and I want to be able to do this to get ICS. Please help!!!