Face it, when it comes to flashable ROMs, the first name on your list is CyanogenMod. Everyone would just love to put this fast and smooth ROM to work on their Android devices. If you own the international variant of the HTC One X and you want your CyanogenMod 10 (CM10) fix, then you're reading the right article.

An unofficial CM10 build is ready for you to flash. XDA Developers member TripNRaVeR and his TripNDroid Mobile Engineering team has engineered this updated CyanogenMod version for you. Based on Android 4.2, the ROM has a hardware Menu key that is mapped to the Recent Tasks button. It comes with a true Jelly Bean kernel and it supports all HBOOT versions of the HTC One X.

This guide shows you how to flash unofficial CyanogenMod 10 ROM for the HTC One X.

Warning

• The instructions in this guide are intended for use with the HTC One X, model number PJ46100. Applying these instructions on another device or model may produce undesired outcomes.
• The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
• Use these instructions at your own risk. We shall not hold any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
• Read and understand the whole guide first before actually performing the instructions.

Requirements

• An HTC One X PJ46100 with ClockworkMod Recovery installed.
  • Check out our guide on how to install ClockworkMod Recovery on the HTC One X.
• A Windows PC
• Handset USB drivers installed on the PC. You may install the drivers by installing HTC Sync.
• Enable USB debugging on your handset.
• Disable antivirus, firewall, and other security software. Also disable HTC Sync and other software that accesses your phone. Such software can interfere with the procedure in this guide.
• Download the following:
  • Fastboot package (Fastboot.zip, 404.46 kB)
  • CM 10 Package (cm10_endeavoru-ota-eng.noeri-028.zip, 213 MB)
    • Original download link
    • Alternative link
• Make sure your device's battery still has at least 70% power. You don't want the device to shut down in the middle of the procedure.
• Backup all personal data on your phone to make sure you have a copy of your personal data (e.g., contacts, SMS, MMS, Internet settings, Wi-Fi passwords, and the like) in case the procedure in this guide erases such data.
  • For backup tips, check our guides on how to sync your data to the cloud and how to create local backups of your mobile data.

Instructions

1. Copy the CM10 ZIP file to your phone's internal SD card.
2. On the PC, extract the Fasboot.zip. You will get a folder named Fastboot.
3. Extract the boot.img file from the cm10_endeavoru-ota-eng.noeri-028.zip file and place it into the Fastboot folder.
4. Turn your phone off.
5. Boot to Fastboot Mode. Hold down the Volume Down and the Power buttons until the screen turns on to enter Bootloader Mode.
6. In Bootloader Mode, highlight Fastboot Mode using the Volume keys and select it by using the Power button.
7. Connect your phone to your PC via USB cable.
8. Open a command prompt on your PC and navigate it to the Fastboot folder.
9. In the command prompt, type fastboot devices to check if your device has successfully connected to your PC. Your phone's serial number should appear on the screen.
10. Flash the boot.img by typing the following in the command prompt:
    • fastboot flash boot boot.img
11. Go back to your phone and select Bootloader to go back to the main Bootloader menu.
12. In Bootloader Mode, highlight Recovery using the Volume keys and select it by using the Power button to boot into ClockworkMod Recovery.
13. Select Wipe data/factory reset > Yes.
14. Select Install ZIP from SD card > Choose ZIP from SD card > select the cm10_endeavoru-ota-eng.noeri-028.zip file > Yes.
15. Select Go back > Reboot system now.

You have successfully flashed the unofficial CyanogenMod 10 on your HTC One X PJ46100. Great job!