How to Manually Update Galaxy Nexus to Android 4.2 JOP40C

Google has finally rolled out Android 4.2 Jelly Bean OTA update to Samsung Galaxy Nexus. The latest Android update was announced last month and includes a number of new features which we have discussed in detail here. The Android 4.2 OTA update started rolling out to Galaxy Nexus in the form of build number JOP40C.

Android 4.2 on Galaxy Nexus

If you want to manually update your device to the latest Android 4.2, follow the guide below. Your device must be on Android 4.1.2 JZO54K to be able to install the update.


  • Make sure battery carries at least 80% charge.
  • Your device must be on Android 4.1.2 JZO54K stock ROM. The installation can fail if you’re not on stock.
  • Backup your important data before proceeding.
  • Enable USB debugging mode in Settings.

How to Update Galaxy Nexus 4.2 I9250 to Android 4.2 JOP40c

Step 1) Download Android 4.2

Step 2) Connect your Galaxy Nexus to a computer using USB cable.

Step 3) Copy the downloaded file to SD card on the device.

Step 4) Now turn OFF your phone and then reboot in bootloader mode by pressing and holding Volume Up, Volume Down and Power buttons until you see Fastboot menu with Start on top

Step 5) Follow instructions on the screen and press Volume up several times until Recovery appears and then press Power to select.

Step 6) Now an exclamation mark will appear on the screen. Press Volume Up + Power together till Recovery Mode menu appears.

Step 7) Select update from SD Card and then use Power to select downloaded file to start the installation.

Step 8) After the installation is completed, your device will reboot and it may take up to five minutes to boot for the first time after the update. However no worries, it’s normal.

If you notice any performance issues, try booting into recovery and wiping data and cache. This can help speed up your phone but would cause data loss so only perform this step if you had backed up before starting this procedure.


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