Not too long ago, we brought you a nearly universal root method for ICS devices. As Android gets older and more devices get Jelly Bean, it was only a matter of time before additional methods were created. Now, there’s a universal method going around that can do both ICS and Jelly Bean.
The method is a script written by XDA Recognized Developer Bin4ry. It takes advantage of an issue found that’s native to Android. As Bin4ary explains:
i made a small script which is able to root ICS/JB phones. It uses a remount timing issue in Androids “adb restore” service.
So normally it should work on nearly all ICS/JB devices, for some it won’t but the idea may work in a slightly modded version
So it should be compatible with many ICS and JB devices. So far it’s been tested on a number of newer Xperia devices and the Google Nexus 7, but it will likely work on many other devices. This will be especially useful when new devices get released with Jelly Bean preloaded. Using it is a breeze as well. Download the .rar file, extract with 7zip, and run the runme.bat. Then, simply follow the instructions.
If you’d like to know more, check out the original thread.
[Thanks to XDA Senior Member neectron for the tip!]___________________