T-Mobile Rooting / Free WiFi tethering (hotspot)

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http://androidforums.com – Hello everyone, First of all, I am new to this forum. I am planning to root my galaxy note 2 version 4.1.1 but I want to make sure rooting the right way. is there a link that helps me rooting my note2 without any issue? is there an app or a good way to get T-Mobile Free WiFi tethering (hotspot) without getting charge monthly after rooting? Thanks in advance for helping. (General)