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Install Experimental OmniROM Android 4.3 custom ROM for Samsung Galaxy Nexus I9250

Experimental OmniROM based on Android 4.3 has been launched for the Samsung Galaxy Nexus International phone. This is a brand new project that has been developed mainly by XplodWild, Chainfire and other more. If you closely follow the info listed below, then you should be able to confirm the process without bricking the device nor losing any data from internal storage in the process.

OmniROM Android 4.3 experimental build will add support for multi-window, multiple workspaces, roadrunner mode, DayDream improvements and other more. Get more info about this new custom ROM here, at the developer’s web page. Read the guidelines below before starting the updating process:

  • Use this tutorial only for the Samsung Galaxy Nexus model number I9250.
    – don’t try to flash the unofficial OmniROM files you find in this post on any other different Android device, as you will end up bricking it.
  • For this guide to work, you will need to own a Galaxy Nexus that is factory unlocked, rooted and running a custom Recovery image.
  • In order to successfully install a new ROM, it is always recommended to apply the ‘factory reset’. This will ensure that you’ll perform a clean installation.
  • Factory Reset will delete all contents from the System partition, which means that you will be forced to backup some data from your device.
    – factory reset doesn’t delete data from internal storage.
  • Backup data from installed apps using the Helium (here) or Titanium Backup (here) tools.
  • SMS, Call Logs info and APN Internet Settings can be saved using the following apps for Android: SMS backup & restore | Call Logs backup & restore | APN Settings Backup & Restore.
  • Sync your Contacts info with your Gmail account.
    – if you don’t know how to, then read the info listed here.
  • Enable USB debugging for your device from Developer Options menu.
  • This is a guide for advanced users and you shouldn’t blame us in case you brick the phone or lose any data in the process.
  • Read the entire post, don’t skip any steps and you should complete the tutorial without problems.
  • Check the phone’s battery, make sure that the charge level is over 50%, so that the phone won’t switch off in the middle of the updating process.

Now that you know all of the above, continue to the next part of this post. Remember that this is not an official Google / Samsung update. If you have problems with the custom Jelly Bean ROM installation, then you should ask for more help in comments.

How to flash Experimental OmniROM Android 4.3 build for Samsung Galaxy Nexus I9250:

  1. Download the custom ROM zip from here.
  2. Download Gapps for Android 4.3 ROMs from here.
  3. Connect your device with your PC, then move both files on your phone’s internal storage.
    – disconnect the smartphone from computer when the transfer is done.
  4. Power off your phone now.
  5. Next, boot the device in Recovery Mode.
    – press and hold Volume Down and Power to load Bootloader Mode.
    – press Volume Up until you see the RECOVERY option listed and press power to boot custom Recovery Mode.
  6. When you’re at the main CWM / TWRP Recovery screen, create a full NANDROID Backup for the installed ROM:
    – CWM: select ‘backup and restore’ menu and save the file on your phone.
    – TWRP: press Backup, rename the file and confirm the backup process.
  7. Now, apply the factory reset for your device:
    – CWM: select ‘wipe data/ factory reset’. Confirm.
    – TWRP: press Wipe, swipe to confirm factory reset.
    > if you don’t apply this step then the phone might not boot in normal mode.
  8. Next, install the new custom ROM:
    – CWM: select ‘install zip from sdcard’, then ‘choose zip from sdcard’. Find the OmniROM Android 4.3 zip. Confirm the installation.
    – TWRP: press Install, then find the custom ROM zip. Swipe to confirm the process.
  9. After the ROM is installed, repeat the step 8 and flash the Gapps zip too.
  10. When both files are installed, return to the main custom Recovery screen.
  11. Reboot your smartphone now.
    – for CWM use the ‘reboot system now’, while for TWRP you need to press Reboot, then System.
    – wait until the first boot process of this new ROM completes.
  12. Take control over your phone by entering the Google Account details.
  13. Start testing the new ROM and then tell us in comments if you find any new features that are not listed in this post.

If the first boot process doesn’t complete or in case the phone enters into a boot loop, then you will be forced to repeat the entire tutorial once again. Make sure to ask for more help in comments in case you cannot complete this tutorial.

In case you don’t like the new ROM, then you can always choose to restore your Galaxy Nexus to its previous state using the ROM backup file created in step 6.

Samsung Galaxy Nexus Articles