Rooting method 3 for Motorola Razr
1: Get the software
Download Odin from http://tiny.cc/s5v9x, XWKDD from http:// tiny.cc/2v6lw and SuperOneClick from http://tiny.cc/rx9cc. Install the Motorola application that is detailed in the RAZR documentation to let it communicate with your PC and make sure the RAZR is put in USB Debugging mode as described in the Galaxy S II tutorial. You will also need to place your phone in ‘Download Mode’ which is also detailed in the Galaxy tutorial.
2: The important part
Run Odin and tick ‘F.Reset Time’ and ‘Auto Reboot’. Press the PDA icon and choose the XWKDD file you downloaded earlier. Odin may take some time to complete the process, but be patient and wait for it to complete and for the RAZR to reboot. You should see SuperOneClick installed on the RAZR, but if it isn’t you simply need to repeat the process and it should appear.
3: Time to root
All you need to do now is open SuperOneClick on the RAZR and tap Root. The rooting process should not take long and when it is complete it is advisable to reboot the phone to make sure everything is stable. This process is very similar to the rooting method for the Galaxy S II so be careful to ensure that you choose the right file when performing the root.
How to root four popular Android phones