Found this after a quick google search, seems to be the easiest method:How to Root Motorola Razr M 4G LTE on Any Firmware - Tutorial - Android Advices
There's some link over at XDA on how to root, but that's all the way back from Oct 2012 and I didn't read if it was up to date or not.
I have rooted every cellular device that I've owned and I was wondering if the Razr blade utility that I used on my razr maxx would allow me to gain root access to my razr m? Or is there another way to root my razr m?
Thanks.
From what I saw when looking through those utilities it said not to use with the most recent update of 4.1.2 that locks the bootloader.
the new update doesn't lock the bootloader, it increased the security so you cant unlock it.
here is a utility that specifically says its for the new update [SCRIPT/UTILITY] ROOT RAZR M XT907 for LOCKED Devices on 9.18.78 - Droid Razr M Development [XT907] - DroidRzr.com
I was reading about the script that ypu linked. it says to use on system version 98.18.78. My phone is running system version 98.16.3. will this still work?
I rooted my razr m and don't have or haven't noticed an app2sd setting.