Rooting HTC’s One series—specifically, the One X and the One S is a multi-step process, but it’s been made easy by Hasoon2000’s All-In-One Rooting kit application. Here’s what you’ll need to know.
Step 1: 10 Reasons To Root Your Android Device
Step 2: Pros And Cons Of Rooting Or Jailbreaking Your Phone
Step 3: Let’s Get Started…
Rooting the One X and One S require unlocking the bootloader with HTC’s official method, then flashing a custom recovery and then gaining root access. However, Hasoon2000’s toolkit puts all the tools you need into one, simple Windows app that guides you through the process nicely. Android Authority has a great how to guide for both the One X and the One S (each requires their own slightly modified version of the tool), so just read through those and you should be good to go.
And when you’re done, be sure to check out the ROMs, themes, and other tweaks you can make to your rooted phone with Android Forums’ All Things Root guide for the One X and for the One S.
Step 4: For even more info, see: The Complete Guide To Rooting Any Android Phone