Begin here, take
MattLGroff’s DROID RAZR UTILITY and download it. For best result extract it to your desktop. Make sure usb debugging is enabled on your phone and open the DROID RAZR UTILITY and double click on the DROID_RAZR_HD_Utility. Let the program open. Your going to start by selecting the (1st) option, this will take you back to ICS 4.0.4, follow the instructions clearly. The end you will be instructed to take the update 0.7.2 (I think) and your phone will be starting completely over. Enter your gmail/Google info it is safe to start it up, once comfortable and most of the apps are downloading, go into > about phone> System Updates and accept the upgrade. It is okay if other apps are downloading or you play around with the phone while taking upgrade as downloads. Once this has been completed, go back to MattLGroff’s DROID RAZR HD UTILITY and double click on DROID_RAZR_HD_Utility, this time you are going to select (2.) follow the instructions correctly this will produce SuperUser and Root your phone, to be safe open superuser and update the Binaries, also go into the Market and download SuperSU and update the binaries. As an added I ad
BusyBox as keeps a strong root. Next go back into DROID RAZR HD UTILITY and select option (3.) this will install Voodoo OTA Rootkeeper. IMPORTANT download
Root Checker to make sure your phone has Root, select Verify Root should be Green. With Root go to Voodoo OTA Rootkeeper and press should be one button that will create copy of SuperUser , there will then be two buttons select (Temp. Un-Root- keeps backup). Once this has been done check Root Checker to verify Root should be RED. Now, is the main step go to Settings>About Phone> and take the update for JB. After phone has completed, wait for phone go to Voodoo OTA Rootkeeper and Restore root. Optional to install Safestrap from DROID RAZR HD Utility option 4. That’s it.
