Rotting Fire on 6.2.1

[afv011]

On the historic date of December 20th, 2011, Amazon pushed out software version 6.2.1 to its Kindle Fire. The update was fairly minor -- its main additions had to do with improved scrolling and WiFi passwords -- but it brought about one devastating change: it broke all previous methods of root.
Seeing the issue, our own Justin Case got right to work; and after a night's worth of coding, with a group of fellow devs helping him through the testing process (namely, Vashypooh, Tevor Eckhart, and IOMoster), he developed a new method to root the Kindle Fire -- a method that works not only on software 6.2.1, but on all currently known versions of the Fire's OS (future updates make break this). Better yet, it's not a hacky process at all; in fact, it's quite simple. Shall we begin?

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[geekmaster]

What does "Rotting Fire" smell like? (Just kidding.)