Updating Galaxy Nexus to Android 4.1.1 Final (JRO03C) from 4.0.4/4.1 on Takju & Yakju

by Mayur on July 11, 2012

in Android, How To's

Google has officially confirmed the rollout of the final Android 4.1.1 OTA update for its flagship device, Galaxy Nexus GSM/HSPA+. The final update 4.1.1 with build number JRO03C, is an upgrade to the recently released Android 4.1 JRN84D update that was a preview release. Galaxy Nexus users might get the 4.1.1 Jelly Bean OTA update over the next several days and it may take long too depending on your device product version. Perhaps, if your Galaxy Nexus is takju running Android 4.0.4 (Ice Cream Sandwich) or Android 4.1 (JB preview) then you can manually install the official 4.1.1 update now!

Requirements -

1. GSM/HSPA+ Galaxy Nexus with product version ‘takju’ (IMM76I or JRN84D).
2. Your phone should be running Official Stock firmware and Not a custom ROM.
3. Device should have an Unlocked Bootloader (How to Unlock Bootloader)
4. ClockworkMod (CWM) custom recovery Installed
5. Phone must be Rooted

  • To check the build number, go to Settings > About phone.
  • Refer to this post to check if your device product name is takju or not?

Backup your device first - (Recommended)

During this process, your device will be wiped but all your data such as photos, music, videos will stay intact. Make sure to create a Nandroid backup of your device firmware before proceeding with this tutorial. Also, Backup your Galaxy Nexus Apps & Data as you can simply restore them after fresh installation of Android 4.1.1.

Tutorial – Updating Galaxy Nexus from Takju 4.0.4 (IMM76I) to 4.1.1 (JRO03C)

1. Download takju-JRO03C-from-IMM76I OTA Update (CWM Flashable Zip).

2. Transfer the 5c416e9cf57f.signed-takju-JRO03C-from-IMM76I.5c416e9c.zip file to the root directory of your phone.

3. Turn off your device. Boot it into bootloader/fastboot mode by holding Volume Up + Down key and power key simultaneously. (You can also use Rom Manager)

4. Navigate to “Recovery mode” using the volume keys and tap power key to select. ClockworkMod Recovery should open up.

5. From ClockworkMod Recovery (CWM), perform the below actions:

- Wipe data/factory reset
- Wipe cache partition
- Wipe Dalvik Cache
- Wipe Battery Stats

6. From the main screen, select “install zip from sdcard” > “choose zip from sdcard” and then choose the transferred .zip file to apply, select ‘Yes..’ to confirm.

Wait for a few minutes until the installation gets completed. Now Reboot and your Galaxy Nexus should be running final version of ‘JELLY BEAN”. :D

galaxy-nexus_android 4.1.1 jelly bean

How to Update Galaxy Nexus from Takju 4.1 (JRN84D) to 4.1.1 (JRO03C)

1. Download takju-JRO03C-from-JRN84D OTA update.

2. Transfer the edfff6d328f1.signed-takju-JRO03C-from-JRN84D.edfff6d3.zip file to the root directory of your phone.

~ Next, follow Step #3, 4, 5, 6 as stated above.

Update – After updating to 4.1.1, you can consider installing the latest Radio/Baseband version XXLF1 for Android 4.1.1 (Takju). You can either flash the radio-maguro-i9250-xxlf1.img using toolkit or simply flash the cwm-radio-i9250-xxlf1.zip file using ClockworkMod Recovery. Tested and working. [Thanks XDA]

Restore the backup up now to get back all your installed apps along with their data.

Note: Following this tutorial, the custom CWM Recovery Mode will break on your Galaxy Nexus. Check this post to fix the recovery & Root Galaxy Nexus running Android 4.1.1.

Disclaimer: Try this guide at your own risk! We wont be responsible in case your device gets bricked. This may also void your warranty.

UPDATE – The official 4.1.1 OTA package for GSM Yakju Galaxy Nexus is also out! (Thanks to efrant). Now YAKJU devices running Android 4.0.4 with build number IMM76I can easily install the Android 4.1.1 Jelly Bean update using ClockworkMod Recovery.

- Before flashing, make sure your device Radio/Baseband version is XXLA2.

How to Update Galaxy Nexus from Yakju 4.0.4 (IMM76I) to 4.1.1 (JRO03C)

1. Download yakju-JRO03C-from-IMM76I OTA update.

2. Transfer the f946a4120eb1.signed-yakju-JRO03C-from-IMM76I.f946a412.zip file to the root directory of your phone.

~ Next, follow Step #3, 4, 5, 6 as stated above.

Don’t forget to share this guide with your friends. :)

~ Our new guide to convert non-yakju to yakju/takju 4.0.4 and Get Jelly Bean OTA.

NEW – Easiest Way to Change Galaxy Nexus from Yakjuxw (Non-Yakju) to Android 4.0.4 Yakju/Takju

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