About a week after the Takju variant of Samsung's Galaxy Nexus got its 4.2 update, it looks like the same is rolling out to the Nexus' Yakju variant. The update (build JOP40C), for those not willing to wait, is also available for manual download and flashing (check the link below).

It should be noted that this update is meant solely for the Galaxy Nexus Yakju – that's the international version not from the Play Store – and your device should be running build JZO54K before you try to install the update.

For those interested, Google has also posted Yakju's 4.2 factory image here.

If you're tired of reading and ready to manually update your Galaxy Nexus, the process is simple. If you're running a custom recovery just download the zip, move it to your device, and flash as usual. If you've got stock recovery, grab the download below and keep reading.

Disclaimer: Android Police isn't responsible for any harm to your device - proceed at your own risk.

Step 1.

Reboot your Galaxy Nexus, holding the Volume Up and Volume Down buttons while it boots up. Once you see the fastboot menu and "Start," press Volume Up to navigate to "Recovery" and press the power button. Once you see an Android with a red exclamation point icon, press Volume Up and the Power button together, which will bring you to a new menu. Navigate to "apply update from adb."

Step 2.

Connect your Galaxy Nexus to your computer with a USB cable.

Make sure you have a recent version of adb that supports the sideload command (if you don't, download the latest Android SDK to ensure your adb is up-to-date).

Open up a command prompt (cmd in Windows, regular shell in Linux and Mac) in the same directory as the JOP40C zip file you've downloaded.

Type in the following:

adb sideload fdf06e8d71c7.signed-yakju-JOP40C-from-JZO54K.fdf06e8d.zip

You should see a progress bar, which will eventually hit 100%. At this point, your device is installing the update.

Step 3.

Reboot and enjoy! You are now running Android 4.2 on your Yakju Galaxy Nexus.

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Download: Yakju Build JOP40C

Liam Spradlin
Liam loves Android, design, user experience, and travel. He doesn't love ill-proportioned letter forms, advertisements made entirely of stock photography, and writing biographical snippets.

  • Marc

    Finally! Now I can enjoy 4.2 also on my phone!
    I really love the quick settings on my Nexus 7!

  • http://twitter.com/thepowerofscott Scott Nienhuis

    Not sure if I want to update after reading that post listing all the problems with 4.2.. any tips?

    • Leo209

      I'm running the Takju version on mine and haven't had any of the problems I've read online that some people are having

      • Alan

        Really, I bet December doesn't exist in the Calendar!!!

        • Casper

          I bet over 9000 that it does exist in calender, but not in peoples app.

          • Alan

            I knew it was missing somewhere!!!

        • http://k3rnel.net Juan Rodriguez

          It does exist, while it doesn't show up on the People's app, you can longpress Nov and type in Dec as a workaround.

        • Leo209

          ok yea you're right, december hasnt been fixed yet. BTW thats only for events like birthdays, anniversaries, etc when you're looking at a contact. the calendar app has december in it. i forgot about that, but other than that, I havent had issues with it

    • mesmorino

      don't do it. it's not worth it, not with the minimal improvements and serious issues it's got

  • http://twitter.com/jorgewiegand Jorge Wiegand

    The camera on my GNEX now is slow as hell :( 10 minutes with 4.2 and want to rollback to 4.1.2 :(

    • Alan

      Sounds like you need to do a reset, I had to with 4.1.2

  • http://twitter.com/Sqbi87 Sqbi87

    yay just checked my phone and there is new update :D android 4.2 installing :D

  • Alan

    Installing, got it as an OTA just now!!!

  • Dan

    Sweet! So the Verizon Galaxy Nexus should have this by May!

    • Havoc70


    • leoingle

      somewhere between Foreverber and Neverary

  • Patience

    Don't do it. It's a trap!

  • Yianni Galiatsatos

    This update came later on the same day as the Takju GNexus.

  • http://twitter.com/bat0nas Tomas Misevičius

    Just flashed the takju (I had yakju) because I couldn't wait for yakju. Got my phone ready (all apps restored, all settings etc.) And... an hour later - yakju 4.2 factory image got posted :)

    Murphy!! I will find ya :)

    • badr alhinai

      Just like u

    • Faiq Alvi

      Same :(

  • The_Chlero

    I entitle to not update until Google fixes all the bugs and issues with 4.2 update. Really, 4.2 has many new features that are alone worth of update, but the bugs this update brings forth are not worth.

    I expect Google release a 4.2.1 update un the next days solving all these problems, until then, I'll keep my fantastic 4.1.2 on my Gnex.

  • jj

    takju yakju all the same :) the thing is that you might don't really need to reset all your data check http://andwise.net/?p=569

  • Yik Sheng Lee

    Just got my OTA this morning. Did not face the issues like battery drainage, slow charging, or disabled Bluetooth apart from the missing December which can be circumvented. Everything is smooth and nice, can't wait to go outdoors for some photo sphere shots. ;-)

  • aruna sena

    Honestly I don't see any issues with 4.2 on my GN yakju.

    1. There's December in my calendar, maybe it's an issue for N4 and 10.
    2. Auto brightness works perfectly.
    3. No issues with Bluetooth.

    Force my GN yesterday by Clearing Framework and check update. Did it twice then voila 4.2 b*****s

    • thiagomast3r

      The Calendar does have December (and even if didn't had, it wouldn't be a problem since Google can simple update Calendar from Play Store since the new Google Calendar). The People app that doesn't have, and it can't be fixed that easily since it's a system app. Only another OTA will fix it.

      But yeah, maybe Google already fixed it on Yakju. I can confirm that this is a problem on Takju 4.2 (even if it's a minor one).

  • Al McDowall

    Ok, I sideloaded onto my Yakju Gnex, girlfriend got the OTA just a little later. Both phones are working brilliantly. I haven't gone through all the listed issues (didn't bother checking the December one) but the camera is working perfectly well, no lag at all.

    Phone seems a little snappier in performance - not sure if that's just psychological, but they both do seem a little faster. Tomorrow I'll see what the battery life is like.

    So far though, very happy. Loving the lockscreen(s) and widgets.

  • Smailey Alexandre Behm

    the steps listed to upgrade in this post delete any stuff form the cell?

    • thommcg


  • Vlad Cochintoiu

    Anyone in the UK got this?

    • lrm

      Not yet. I had flashed the Takju version, but went back to Yakju hoping that some of them bugs will be dealt with. No update yet though

    • Alan

      Yeah, got it as an OTA last night.

  • http://www.facebook.com/people/Daniel-Oliveira/100001143673478 Daniel Oliveira

    Can someone tell me if "adb sideload" resets user data?

    • http://twitter.com/chandradithya Adithya Pc

      No it doesnt

  • seems alright

    Installed it. Used it for a day. Havent experienced any of the issues people were complaining about except for the missing December in the people app (there's a workaround for that) and a slight lag when rotating the camera.

  • Christian

    Didn't work for me. "Installation aborted." :(

  • http://www.facebook.com/9man.ali Numan Ali

    I have this device every thing i have send u but i need 4.2 when it come for me.?

  • http://www.facebook.com/9man.ali Numan Ali

    Wen i recive 4.2?

  • http://www.facebook.com/mark.pomphrett Mark Pom

    4.2 is AWFUL. multiple issues. Wifi and 3g connectivity is extremely patchy. We've gone from butter to lard.

  • Freek

    Can't get into next menu after the exclamation point icon...

  • Walter

    Installed yesterday on my unlocked and rooted 4.1.2 Galaxy Nexus (yakju). My experience:

    Using the "adb sideload", I got the error: "assert failed apply_patch_check("/system/build.prop..."".

    "Force close" and "Clear data" the Google Services Framework, then "Check for updates" several times, and I got the OTA. Downloaded, restarted, stopped in recovery mode. Pressing and holding the Power, then Volume up, I found the same error in Recovery Screen.

    I remembered that I changed the /system/build.prop file adding a row to enable the rotating home screen. Mounted the /system r/w, deleted the row in the build.prop file, and using the same method described before forced the OTA. All the process passed OK.

    The phone is now at 4.2, but I lost root.

    At the end I had to root again the GNEX using the Wugfres Nexus Root Toolkit, 1.5.5. (it is just a few clicks process :-), if you have the right drivers installed )

    Conclusion: Changed system files can stop the upgrade process: always backup them and remember what you changed in system areas. Before the upgrade (manual or OTA) restore the changed files.

    First experience: Missing December in People (not important for me), small and random lags in PIN screens or touching the Back button, persistent FC in some applications (Navionics), Changed Camera and keyboard (swipe). I am going to check more...

  • manideep

    i have done al that,
    im getting an error like Device not found after clicking on update from ADB.

    What actually i should check in pc for adb sideload

  • Safeer

    Whenever I run the sideload command it gives an error.
    Error: closed.
    Everythings perfect. Drivers etc.
    Im using Windows 8 x64

    • http://twitter.com/Slapsno SLaps

      Same here right now :( , did u find and solve the issue?

      • http://www.bigostudios.pk/ Safeer

        Yes, issue resolved. Apparently I was running the command when my Android OS was running.
        This has to be run in the adb mode.

  • mauriceh

    OK, downloaded yakju-jop40d-factory-279cdc5d

    Went to "apply update from adb"

    Sent package with adb sideload

    File is transferred OK

    Phone says:
    Finding update package...
    Opening update package...
    Verifying update package...
    Installation aborted

    And Idea of what am I missing?

    • RIFAT

      same as u

  • gregory

    People are complaing about the problems android 4.2 has but since the update i can use my phone for 12 hours with heavy usage (think about listening music facebook instagram twitter whats app and browsing the internet) i think personally that the update has madey phone even better before it was on 4.0 and i live in holland i own the yakju versions

  • Mo

    Guys I bought Galaxy Nexus from a friend (4.0.4 yakjujp) and was wondering if this is the right file to update my phone to JB. Help a noob out. Thanks!!

  • Simon

    Hi, I have inherited phone which does not have "update from adb" option.
    It has "update from /recovery" instead.
    Can you advise how could I flash it with a factory image?

  • android

    can I install it on my HCL ME u1 which is not nexus

  • http://www.labshab.com/ mohit kumar

    it gives me error whenever i do :( what to do guys