HTC One X is among the lucky few Android devices to enjoy the latest Android 4.2.2 Jelly Bean features, with due release of CyanogenMod 10.1 (CM10.1) custom ROM. As this is an official nightly ROM from the CyanogenMod team, it brings the latest custom Jelly Bean features in a highly-stable release. The custom ROM is based on the original Android Open Source Project (AOSP) release and does not include the native HTC Sense User Interface (UI).

Update HTC One X to Android 4.2.2 Jelly Bean with CyanogenMod 10.1 Nightly ROM [How to Install]
Update HTC One X to Android 4.2.2 Jelly Bean with CyanogenMod 10.1 Nightly ROM

NOTE: As this is an official nightly release, it may harbour a few untested bugs or broken features, which will be fixed in the upcoming updates as development progress. IBTimes UK will not be held liable if the device is damaged during or after the ROM installation. Users must proceed at their own risk.


  • The CyanogenMod 10.1 ROM and instructions provided in this guide are meant for HTC One X model only. Do not attempt this guide on any other device, as it may permanently damage its hardware.
  • Download and install the correct USB drivers for HTC One X on the computer.
  • Backup important data and settings on the phone to avoid unexpected data loss during ROM installation. Users are advised to backup data using one of the popular custom recovery tools such as ClockworkMod (CWM) or TWRP, as it creates a complete image of the current phone set up. Avoid using either Samsung KIES or ROM manager for data backup, as they lack flexible options.
  • Make sure that the device's bootloader is unlocked and the phone is rooted with CWM recovery installed. NOTE: Do not try the instructions in this guide if the phone is locked to a specific carrier, as this could permanently damage or brick the device.
  • Ensure that ADB and Fastboot are configured on the device and it has at least 85 percent battery charge before proceeding with the ROM installation.
  • Verify that USB Debugging mode is enabled on the phone by navigating to Settings > Developer Options (if the device is running Android 4.0 or later) or go to Settings > Applications > Development (if the phone is running Android 2.3 or earlier). Otherwise, if the device is running the latest Android 4.2 firmware, then do the following steps:
    • Go to Settings > About Phone
    • Scroll down to the bottom of the screen and select Build Number
    • Tap the Build Number for seven times so that the hidden Developer Options is unlocked under Settings. Now, select the checkbox to enable USB Debugging mode under Settings > Developer Options.

How to Install Android 4.2.2 Jelly Bean Update on HTC One X with CyanogenMod 10.1 Nightly ROM

Step 1 - Download Android 4.2.2 CM10.1 Nightly ROM for HTC One X on the computer and extract boot.img file from the zip package separately. Download Google Apps as well.

Step 2 - Connect and mount the phone's USB mass storage on computer with the USB cable.

Step 3 - Now, copy the CyanogenMod 10.1 Nightly ROM and Google Apps zip files to the root folder of your phone's SD card.

Step 4 - Then copy the boot.img file to android-sdk-windowsplatform-tools directory.

Step 5 - Power off the phone and boot it into bootloader/fastboot mode. To do so, press and hold the Volume Down and Power buttons together until the device Powers on.

Step 6 - After the device enters Fastboot mode, browse to android-sdk-windowsplatform-tools directory (on the computer) and launch Command Prompt (Shift + Right-click > Open Command Prompt).

Step 7 - Type the following command and hit Enter.

fastboot flash boot boot.img

Step 8 - Then, type the following command and tap Enter.

fastboot reboot

Step 9 - Follow the onscreen navigational instructions. Then select BOOTLOADER and finally boot into Recovery.

Step 10 - In CWM recovery, perform full data wipe first. Then navigate to Flash zip from SD card option and hit the Power button to choose it.

Step 11 - Tap the Power button again and click Choose zip from SD card.

Step 12 - Now, use volume keys to navigate to CM10.1 ROM zip file and choose it by tapping the Power button. Confirm the ROM installation on next screen and the installation process will begin.

Step 13 - Once the ROM installation completes, hit Go Back and reboot the phone by selecting Reboot System Now in the recovery menu. The phone will reboot and the first boot may take about five minutes to complete. So, please do not interrupt the process.

The HTC One X is now successfully updated to Android 4.2.2 Jelly Bean with CM10.1 Nightly ROM. Go to Settings > About phone to verify the firmware version installed.

[Source: Team Android]