Galaxy Nexus I9250 Gets Official Android 4.2.1 Jelly Bean OTA Update via JOP40D Firmware [How to Install Manually]
Galaxy Nexus I9250 Gets Official Android 4.2.1 Jelly Bean OTA Update via JOP40D Firmware

Galaxy Nexus I9250 is the latest entrant to the Nexus-Jelly-Bean party with the release of JOP40D ROM based Android 4.2.1 official firmware. The new Jelly Bean update is also ported to a wide range of other Nexus devices including Nexus 4, Nexus 7 and Nexus 10.

Android 4.2.1 Jelly Bean update is now available for automatic download over Samsung KIES. However, users who missed the opportunity can now download and install the same manually using the guide below, with due credit to TeamAndroid. It must be noted that the JOP40D official firmware is just a bug-fix OTA (Over-The-Air) update and not a major release.

Disclaimer: The software and instructions provided in this guide are meant for reference purpose only and do not support any warranty claims involving device damage or issues arising out of using the JOP40D firmware update.

Pre-requisites

  •  Ensure that your phone is already running Android 4.2 JOP40C (previous official release) before updating to the new JOP40D OTA firmware.
  •  Verify that the correct USB drivers are installed for your Galaxy Nexus smartphone on the computer. Download Samsung Galaxy Nexus USB drivers.
  •  IBTimes UK advises users to backup apps, important data and settings (including bookmarks, contacts, SMS, MMS and APN settings) to avoid risk of data loss while installing the Android 4.2.1 JOP40D firmware update on the Galaxy Nexus I9250.
  •  Enable USB debugging mode by navigating to Settings > Applications > Development and check the USB debugging option.
  •  Make sure that the phone battery is fully charged or has at least 85 percent charge to prevent unexpected device shutdown (due to battery drain) while flashing the Android 4.2.1 Jelly Bean official firmware.
  •  JOP40D firmware update and the instructions provided in this guide are applicable for the international variant Galaxy Nexus I9250 only and will not work with any other device. Verify your device's model number by navigating to Settings > About Phone.

How to Install Official JOP40D Android 4.2.1 Jelly Bean OTA Update on Galaxy Nexus I9250 [For Non-Rooted]

NOTE: This method of installation for the official firmware requires your device to be on Android 4.2 JOP40C (previous official release) which is not rooted and has stock recovery.

Instructions

Step 1 - Download Android 4.2.1 JOP40D Jelly Bean firmware  for Galaxy Nexus on your computer. Rename the file to update.zip.

Step 2 - Connect and mount your Galaxy Nexus USB mass storage on your computer with the original USB cable.

Step 3 - Copy the update.zip file to the root folder on your phone's SD card.

Step 4 - Power off your phone and then boot into Bootloader Mode through a button sequence. To do so, press and hold the Volume Up, Volume Down and Power buttons until you see the Fastboot menu and Start option on the screen.

Step 5 - Follow the onscreen navigational instructions. Tap Volume Up button repeatedly until the Recovery option pops-up and then hit Power button to select it.

Step 6 - An exclamation mark pops-up on the screen. Once again hold Volume Up and Power buttons together until you see the Recovery Mode menu.

Step 7 - Choose update from SD card. Then browse to update.zip file and select it with the Power button. The firmware update should begin installing now.

Step 8 - Once the firmware update completes, the phone will reboot and the first boot after the update might take about 5 minutes to complete. So, leave it alone for some time.

Your Galaxy Nexus I9250 is now successfully updated with official JOP40D Android 4.2.1 Jelly Bean firmware. Go to Settings > About phone to verify the firmware version installed.

How to Install Official JOP40D Android 4.2.1 Jelly Bean OTA Update on Galaxy Nexus I9250 [For Rooted] 

NOTE: This method of installation for the official firmware requires your Nexus I9250 to be rooted on Android 4.2 JOP40C (previous official release), besides ClockworkMod Recovery (CWM) preinstalled on it.

Step 1 - Download Android 4.2.1 JOP40D OTA Update for Galaxy Nexus on your computer.

Step 2 - Connect and mount your Galaxy Nexus USB mass storage on your computer with the original USB cable.

Step 3 - Copy the Android 4.2.1 zip file to the root folder on your phone's SD card.

Step 4 - Power off your phone to boot into Bootloader Mode. To do so, press and hold the Volume Up, Volume Down and Power buttons till you see the Fastboot menu and Start option on the screen.

Step 6 - Follow the onscreen navigational instructions. Now, press Volume Up button repeatedly until the Recovery option pops-up and then hit Power button to select it.

Step 7 - In CWM recovery, browse to Flash zip from SD card option and tap the Power button to select it.

Step 8 - Hit the Power button again and click Choose zip from SD card.

NOTE (Optional): You might have to disable signature verification from the Toggle Signature Verification option.

Step 9 - Now, use volume keys to navigate to Android 4.2.1 zip and select it using the Power button. Confirm the firmware installation on the next screen and the installation procedure should begin.

Step 10 - Once the firmware is installed, hit Go Back and reboot the phone by tapping Reboot System Now in the Recovery Menu. The phone will reboot and the first boot may take about 5 minutes to complete. So, please be patient.

Your Galaxy Nexus is now officially updated to JOP40D Android 4.2.1 Jelly Bean firmware. Go to Settings > About Phone to verify the firmware version installed.

[Source: Team Android]

This article was updated November 30, -0001 00:00 AM
How to Install Manually