Is there a 4.1 custom (and stable) ROM available for your exact model tablet? Otherwise, you’re wasting your time rooting.
I've built Intel boxes since the 286 in 1984 and MS3.1, but I have NEVER been able to understand the architecture of Linux. It's like it came from Mars and I have to make it work. Everyone seems to think I should know what a tar ball is and which partition to put it in. I have loaded dozens of machines with Linux of all stripes and I can always get to the desktop and say,....What now? I can't even update Firefox to the latest version with it right there in the browser window. Why can't they just have a file named Android 4.1.exe and you double click it and go to the bathroom and come back with an updated machine? No, you need the proper version of Debian or Suse to fit an OS named Mint or Ubuntu, and the right program to extract the file and then it won't go to the place it's supposed to go. I feel like that movie with Adam Sandler golfing, where he hits the ball with a hockey stick and hollers "GO HOME, GO HOME", and it just won't go.