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How to Install LG Optimus 2X P990 to Android 4.2.2 CM10.1 Nightly Jelly Bean Custom Firmware

HOW TO: Install Android 4.2.2 CM10.1 Nightly Jelly Bean on Optimus 2X P990

We have put together a detailed step-by-step instructions guide on how to install Android 4.2.2 CM10.1 Nightly Jelly Bean on LG Optimus 2X. If you are used to installing custom ROMs on your LG Optimus 2X, then this should not be any different for you.

However, for beginners, you need to root your LG Optimus 2X and install a custom recovery. Please Google that up if you are unsure. Make sure you read the entire tutorial first before actually performing it.

LG Optimus 2X P990 - Android 4.2.2 CM10.1 Nightly Jelly Bean

To Remember:

  • This tutorial is only for installing Android 4.2.2 CM10.1 Nightly Jelly Bean on LG Optimus 2X P990. Please do not try on any other Optimus 2X variants.
  • Your phone SHOULD be rooted.
  • This tutorial will wipe out all your data. Proceed at your own risk.
  • Perform a Dalvik Cache wipe before proceeding from the recovery mode.
  • ClockworkMod recovery should be installed from before.
  • Make sure you backup all your data in your phone before proceeding.

Complete Step-By-Step Instructions:

Step 1 – Download Android 4.2.2 CM10.1 ROM and Google Apps for Optimus 2X P990 to your computer.

Step 2 – Connect and mount your Optimus 2X USB memory on your computer using the USB cable.

Step 3 – Now copy/paste the downloaded Android 4.2.2 ROM zip file and Google Apps zip to your SD card. Make sure the file is in the SD card root (not in any folder).

Step 4 – Then turn OFF your phone and disconnect from the USB cable.

Step 5 – Now to get in the Recovery Mode. Switch ON the phone by pressing and holding Volume Down + Power buttons. Keep holding them till you are in the CWM Recovery Mode. Alternatively, read this: How to Enter Recovery Mode on Any Android Phone.

Step 6 – In ClockworkMod recovery, perform a full data wipe first. Then scroll down to “flash zip from SD card” and press the Power button to select it.

Step 7 – Press the Power button again and select “choose zip from sdcard”.

Step 8 – Now using your volume keys, navigate to the Android 4.2.2 ROM zip file that you copied to your SD card and select it using the Power button. Confirm the installation on the next screen and the installation procedure should start now.

NOTE: Repeat this step again for the Google Apps zip file.

Step 9 – After the installation completes, go to “+++++Go Back” and reboot the phone by selecting “reboot system now” from the recovery menu. The phone will boot now and it might take about 5 minutes to boot on your first time. So, please wait.

That’s it! Your Optimus 2X should now have Android 4.2.2 CM10.1 Nightly Jelly Bean installed on your phone! Go to Settings >About phone to verify.

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If you run into any problems, feel free to drop us a comment below and we will reply you back ASAP with the fix or the solution to your problem.

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Haris Nadeem
Haris lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.
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