Install Rooted and De-Odexed Stock Android 4.2.1 JOP40D ROM on Google Nexus 4

Google Nexus 4 updated with pre-rooted and de-odexed Android 4.2.1 JOP40D Firmware

Those of you who are looking for a root to JOP40D firmware should use the instructions listed below, and learn how to flash a pre-rooted stock Android 4.2.1 JOP40D firmware for your Nexus 4 device. Read all the instructions that I’ve listed and make sure that you will not skip any instructions listed below.

This is the same stock JOP40D Jelly Bean firmware only that it has been edited by Geo411m and now it is pre-rooted and de-odexed. ┬áThis means that you can flash it and after that you won’t have to look for any other rooting guide. This stock firmware is the same as the OTA version only that it has been deodexed and rooted using BusyBox.

Before you can begin the installation you should read the preparation guide below:

  • Use this tutorial only for the Nexus 4 devices that are on unlockd bootroms, rooted and running a TWRP recovery. If your device doesn’t meet these requirements then you should skip this tutorial.
  • Before installing the new ROM you should create a full NANDROID backup of the currently installed ROM. Do not flash the new firmware without backing up your most important data files and applications.
  • We cannot be blamed in case something goes wrong during the install process.
  • This is a guide for advanced Android users and you should know that the tutorial will ask you to wipe all data from your device, except for the internal SD card storage.
  • Make sure that the phone’s battery has enough power left so that it won’t power off the device during the installation.
  • If you have any other questions, then you should post them in our comments field.

I think that these are all the guidelines you had to read before moving to the how-to info. Note that you shouldn’t skip any steps listed below because you will not be able to complete the update.

How to update Google Nexus 4 to rooted and de-odexed Android 4.2.1 JOP40D Stock Firmware:

  1. Download the ‘mako’ Nexus 4 deodexed ROM file from HERE. Don’t extract the zip contents.
  2. Connect your Nexus 4 to your PC using the USB cable. Now move the ROM file on its internal SDcard and after that you can disconnect the phone from PC.
  3. Power off your Google Nexus 4 and boot the Bootloader mode. Press these buttons: volume up, volume down and power. You should see a Start text and now you need to press volume up two time to select ‘Recovery mode’.
  4. Press the Power button to load your device into TWRP Recovery mode. When that happens, you should use the Backup option to create a NANDROID ROM backup of your currently installed ROM. This file will be very useful in case you cannot boot your device after installing the new files. In case you already have such backup file then get to the next step.
  5. Go to the main TWRP Recovery menu and press on the ‘Wipe’ option. Choose ‘factory reset’ and after that you should confirm the data wiping of your /system partition. Note that this step will not delete the contents stored on the SD card.
  6. Next, press ‘Install’ and then browse your device for the ‘mako 4.2.1 deodexed.zip’ ROM file. Select it and then you will see a new menu and you should confirm that you want to install it.
  7. Now the update will be applied and you should wait until that happens. Return to the main menu when all JOP40D Android 4.2.1 rooted and de-odexed ROM files are all installed.
  8. Press the ‘Reboot’ option and wait until the first boot process with this new ROM completes its loading. This will take at least 5 minutes.
  9. When the boot is finished you will be taken to the welcoming screen of Android 4.2.1 Jelly Bean. Enter your Google Account and take control over your device.
  10. Test all the functions of this new ROM and tell us at the end of this post if you like it.

I think that these were all the steps that I had for you and now you should begin to test all the areas of this new Android 4.2.1 ROM. Remember that this is an already rooted firmware and you don’t need to search for any other guides.

In case you cannot complete the update from your first attempt, then you should tell us in comments exactly which steps you took and where you got stuck so that we can think of a proper solution for your problems. However, remember that you’re installing this ROM update at your own risk and we cannot be blamed in case you cannot use your device after the installation.

Google Nexus 4 Articles

  • Wenson

    how long it takes to boot the de-odexed 4.2.1 on Nexus 7? should I turn off and restart? ( more than 30 min from the reboot now)