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Update HTC One X to Android 4.2.2 Jelly Bean CM 10.1 Nightly ROM

CyanogenMod 10.1 Nightly ROM is now available for the HTC One X and you can use this guide to install it. Read all the info and you should be able to complete the tutorial installation with success in under five minutes.

Before starting the update you should read the preparation guide below. Make sure that you’re an advanced Android user and that you know what you’re doing. Here’s what you need to know:

  • Use this guide only with the HTC One X phone.
  • The HTC One X you’re about to update needs an unlocked bootloader, it has to be rooted and running a custom Recovery image, TWRP or CWM. I’ve used the CWM Recovery one.
  • Create a NANDROID backup of your current ROM before getting to the tutorial. This will be very helpful in case you cannot boot the phone into normal mode after installing CM10.1 nightly OS.
  • You can create backups of the Call Logs info, SMS and other similar data using these files: SMS backup & restore | Call Logs backup & restore | APN Settings Backup & Restore | AppBack for Android application. Such data will be removed by the ‘wipe data/ factory reset’ step and you might want to back it up. NOTE: If your device is already running a CM10.1 nightlies ROM then you can skip this action.
  • Make sure to sync your People / Contacts app with your Gmail account so that you won’t lose any important data in the process.
  • Charge the phone’s battery so that it won’t power off while you’re installing this new ROM.
  • We cannot be held responsible in case you lose any data or you brick your phone.
  • Read all the instructions and make sure that you won’t skip any steps in the process.

These were all the guidelines you had to go over. Now you can get to the tutorial.

How to update HTC One X with CM10.1 Nightlies ROM:

  1. Download the ROM zip from HERE.
  2. Download Gapps for CM10.1 from HERE. This is the zip that you will need to install in order to get all the Google-based apps for your One X device.
  3. Move these files on your HTC One X internal SDcard. When the files are transferred you can power off the phone.
  4. Boot your device into Bootloader mode by pressing Volume Down and Power buttons at the same time.
  5. When Bootloader Mode is loaded you need to use the Volume buttons and select Recovery option.
  6. When you’re at the main menu of the Recovery mode you can choose to create a NANDROID backup of the current ROM using the ‘backup and restore’ option. If you already have one then you can skip this step.
  7. Select ‘wipe data/ factory reset’ option and confirm this process. NOTE: if your phone is already running a CM 10.1 ROM then you can skip this step.
  8. Select ‘install zip from sdcard’ and then ‘choose zip from sdcard’. Find the CM10.1 ROM and confirm that you want to install it.
  9. When the ROM is installed you should select ‘choose zip from sdcard’ again. Now you need to install the Gapps zip file. Confirm.
  10. Return to the main Recovery screen and then you can select ‘reboot system now’.
  11. The first boot process shouldn’t take more than five minutes to complete and you need to wait for the welcoming screen of Android 4.2 / CM10.1 ROM to appear.
  12. Enter your Google Account details and take control over your device.
  13. Test all the functions and features of this new ROM.

I think that these were all the steps you had to take. In case the first boot process doesn’t complete then you will have to repeat the entire tutorial and you need to make sure that you apply step 7, as that might be the reason for the new installation failure. Ask for more help in comments in case you cannot complete the update.

If you don’t like this new ROM, then you should use the NANDROID backup of your previous ROM and restore it using the ‘CWM Recovery mode.

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