Okay on that install mobage then connect your mobile and wait till your phone details appear go to toolsbox then 1 touch root then accept.Remember that your warranty becomes void after rooting.This is the easiest way.
Then go to xda forums and look up rooting galaxy tab 2 and you also want to know what model you are using like mine is the p3113. Once rooted your options will open up for upgrades but rooting is step 1
what is a good Samsung galaxy tablet I can buy ? I have right now is a Samsung galaxy tablet 2 7.0. it's all update and I there's no way of me update it more. so next is I going buy new Samsung galaxy tablet.