How to Update HTC One X to Android 4.2.1 Jelly Bean AOSP Custom Firmware

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We just wrote about an AOSP Android 4.2.1 ROM for HTC One X yesterday and now we have Android 4.2.1 Jelly Bean AOSP custom ROM for installation on your phone. All you need is ClockworkMod recovery to install this custom ROM on your HTC One X. You can install Android 4.2.1 Jelly Bean AOSP on HTC One X using the tutorial below. Make sure ClockworkMod recovery is installed on your phone and your bootloader is unlocked.

As you continue reading, we will guide you through the process of how to update HTC One X with Android 4.2.1 Jelly Bean AOSP custom ROM. All the step-by-step instructions are given below, and we have also given a few extra tips that you have to keep in mid before proceeding. Make sure you backup all your existing data in the phone before proceeding as this tutorial will wipe out all your internal storage data. Let’s continue with the tutorial now.

Android 4.2.1 Jelly Bean AOSP

Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial ;-)

Android 4.2.1 Jelly Bean AOSP ROM Details:

A few features on this ROM work, and some don’t. Let’s take a look at that.

Working

  • Wireless
  • Phone calls
  • GSM Data
  • Audio
  • Video Playback (including HD)
  • Camera (no photosphere – blame google)
  • GPS
  • NFC
  • Works with any HBOOT version
  • Bluetooth file transfer, tethering and input devices (HID -> keyboards)
  • Wireless tethering

Not Working

  • Bluetooth Audio devices
  • ..and probably some other things.

UPDATE: Android 4.2.2 AOSP custom ROM is now available for the HTC One X. Read the tutorial here!

HTC One X USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for HTC One X properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download HTC One X USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. Now, let’s proceed with the tutorial on the next page and update HTC One X to Android 4.2.1 Jelly Bean AOSP custom firmware.

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