Restore Samsung Galaxy Nexus I9250 to Rooted stock Jelly Bean 4.1 JRO03L ROM Firmware
Galaxy Nexus I9250 was the first device that came with the Jelly Bean ROM and now xalo86, an XDA Senior Member, managed to release a rooted variant of the newest Jelly Bean 4.1.1 JRO03L firmware. It is a stock ROM and the best thing about it is that it is rooted and this means that you will always be able to use this ROM in order to restore your device to a rooted stock Jelly Bean state.
Use all the instructions that I have listed in this article and you will manage to successfully flash this rooted stock Jelly Bean firmware. The guide is destined for the International variant of Galaxy Nexus and it won’t work with the Verizon edition nor with the Sprint one. You need to read the preparation guide below and you will learn how to correctly prepare your device for the installation process.
Since this ROM is already rooted, you won’t need to apply any other guide after you complete this one. Also, your device should be on an unlocked bootloader and in case yours isnt’ then you should use the ‘unlock bootloader’ guide link in the prep guide and learn how to do it. Also, move all important files on your computer and only when you’re sure that you won’t risk losing any important data, you should move to the final part of this article, which is the tutorial.
Here’s what steps you need to do before starting to install the JRO03L Jelly Bean 4.1 rooted stock firmware:
- Install this rooted JB ROM only with the Galaxy Nexus International variant with the model number I9250. Check your phone’s model variant by opening Settings and then checking the info listed under ‘About device’. If the phone version is I9250, then you can continue with the rest of this guide’s instructions.
- The Galaxy Nexus phone has to be on an unlocked bootloader. Also, CWM Recovery or TWRP Recovery should be installed on it. Without these you won’t be able to flash the rooted ROM that’s listed in this post.
- In case your device is rooted, then you can create a full NANDROID backup of your currently installed ROM.
- Move all important files on your PC and after the install is complete you can restore them back on your Gnex device. This action is required so that you won’t risk losing any data files in the process.
- If your device is rooted already then you can save your SMS, Call Logs and the APN Internet Settings using the following tools for Android devices: SMS backup & restore | Call Logs backup & restore | APN Settings Backup & Restore.
- If you want to save a list of all important applications, use the following tool: AppBAK application for Android.
- Sync the Contacts / People app with your Gmail account and you’ll backup all the stored phone numbers and contact details.
- Enable USB debugging option from your phone’s Android Development menu.
- Disable or uninstall all the USB Drivers from your PC.
- Charge your phone’s battery until it says that there is at least 50% power left until the device switches off.
- Apply this tutorial only if you’re an advanced Android user. Note that we cannot be held responsible in case you lose data or you damage your Galaxy Nexus I9250. Make sure that you don’t skip any steps that I have listed.
- If you have any extra questions, please post them in our comments filed and we will get back to you.
Now that you’ve read all of the above, move to the tutorial and begin the installation of this new stock and rooted JB firmware.
How to restore Galaxy Nexus I9250 to stock Android 4.1 Jelly Bean JRO03L Firmware ( Rooted ROM )
- Download the JRO03L Jelly Bean rooted ROM HERE.
- Download the Gapps for Jelly Bean from HERE. Do not extract the contents of this two downloaded files.
- Connect your phone to your computer and then copy the ROM and the Gapps file onto its internal SDcard.
- Power off your phone and disconnect it from your PC after the files are transferred. You will need to boot into CWM recovery.
- CWM Recovery mode or TWRP Recovery modes can be booted by pressing ‘volume up’ + ‘volume down’ + ‘power’ buttons. Select the Recovery mode option from the menu and then press Power to boot it.
- Tap / Select the ‘backup and restore’ option and create a full backup of the existing ROM. This backup can be restored later in case this new ROM isn’t working or you’re not satisfied with it. If you already made a backup of the ROM, then you can skip this step and continue to the next one.
- Select ‘install zip from sdcard’ and then ‘choose zip from sdcard’ for CWM Recovery. In case you’re using TWRP, then you need to tap ‘install’, after that select ‘browse’. Find the JRO03L firmware file and confirm that you want to install it.
- When the file was successfully installed you should repeat step 7 and flash the ‘Gapps’ file.
- When both, ROM and Google Apps, are installed you need to select ‘wipe data/ factory reset’ option and confirm. Return to the main recovery mode menu.
- After the wipe data process is complete you will need to select ‘reboot system’ and wait for the ROM to perform its first boot.
- Enter your Google Account details and take control over all of your phone’s functions.
I think that these are all the steps that you had to take in order to correctly restore / update your device to this rooted and stock Jelly Bean ROM. In case you cannot complete the tutorial, then you should ask for more help in comments.
Note that this ROM is stock and rooted, which means that you won’t need to re-root the Galaxy Nexus I9250 after you install it. I hope that you managed to apply all the steps above. In case the first boot process takes over 15 minutes to complete or in case the device gets into a boot loop, then you should power OFF the device and after that you should repeat the entire tutorial once again. Eventually, you will manage to flash the ROM.
Click the Galaxy Nexus link listed under this post’s featured photo and you will find numerous other guides on how to improve your Android experience. If you have any other tips or tricks please let us in comments.