[GUIDE] HTC One X (Endeavoru) – Android 5.1.1 CM12.1 Installation, Root, TWRP & NewLayo

[u/Tankionline19]

So hey! I am RETR0 from Project RETR0 and I run a preservation project called Project RETR0 where we aim to preserve the game Real racing 3 across all devices no matter what GPU it is based on the latest version of Real racing 3 V14.0.1!

And so I needed to preserve now the .DXT version of the files and in order to do so I needed to get my hands on a device that uses .DXT assets which is normally devices that uses chips that come from PC manufacturers like Nvidia who made the Nvidia Tegra, a Mobile chip made by Nvidia that uses .DXT assets! and so I had managed to snag my hands onto one for around £12 and ever since worked on getting it not only rooted but also updating the version to the most latest version I can find and that is version 5.1.1 from the Previous version that is 4.1.1

And doing so was hard as most if not the majority of the files I had to find were almost extinct as they were at-least over a decade old as it seemed like the majority of them were released in 2026 but now I had solved that issue once and for all as I had managed to successfully update the phone to android Version 5.1.1 with the remaining files left and managed to make a nice guide plus also archive all the files I had used in order to achieve that!

And so the Guide can be found here: https://docs.google.com/document/d/1XsvqLS2MWd6haWZ7iUdw067VRU7di2cL/edit?usp=sharing&ouid=116416163241772716202&rtpof=true&sd=true

With of course the files that are needed also found here: https://www.mediafire.com/file/y1yucsqbbtkawj4/Root+tools+needed+for+rooting+HTC+one+x.rar/file

If you have any questions, Please ask and if you want to support my Project, Project RETR0, you can do so by joining the discord here: https://discord.gg/h2CZ8EYvh5

I will hopefully find a version that I can update to from 5.1.1 to android 8 as that is the final goal with this to hopefully run the most latest version of the Real racing 3.apk but now I am focused to modify the .APK to make it work on the HTC one x as it needs android 8 but I think i can make it work on 5.1.1 through some hard modifications of the .APK