Hi, I have a motorola droid razr XT912 with official android version 4.1.2, and I'm new in this model because only use samsung, and let me know if you install cyanogenmod ROM 10.1 or another for this model, I want to know if the DROID RAZR Utility XT912 Jellybean, I can turn back to the official version 4.1.2 android jelly bean????????