How to Unroot/Unbrick Nexus 7!

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For those of you who want to unroot/unbrick your Nexus 7 completely back to factory, here’s a full step-by-step video tutorial on how to do it. You can use Windows, Linux, or Mac to do this.

Commands Used in the Video:

fastboot flash bootloader bootloader-grouper-3.34.img
fastboot reboot-bootloader
fastboot -w update image-nakasi-jro03d.zip
fastboot oem lock

Now, if you happen to end up in a bootloop, you can try unlocking and re-locking your bootloader for fix:
fastboot oem unlock
fastboot oem lock

For Mac, replace all “fastboot” with “sudo ./fastboot-mac”.
For Mac, replace all “fastboot” with “sudo ./fastboot-linux”.

Make sure you replace “bootloader-grouper-3.34.img” with the file ending in “.img” for your Nexus 7 and also replace “image-nakasi-jro03d.zip” with the file ending in “.zip”.  This will depend on the Android version of the factory firmware you downloaded.

Downloads:

Fastboot.zip

Nexus 7 Stock Image

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22 Responses to How to Unroot/Unbrick Nexus 7!

  1. Nick says:

    Im all good until i do the fastboot -w update image-nakasi-jro03d.zip command. it says sending ‘system’ but it wont finish; its stuck there. ive waited for a while now…any suggestions? im on a mac

    • Nick says:

      nevermind i just did the oem lock/unlock method a couple of times. thank you so much for this tutorial! i thought my bricked tablet was a goner!

  2. James says:

    When I perform the third step, I keep getting a writing system failed. Is there a fix? See below…
    checking product…
    OKAY [ 0.031s]
    checking version-bootloader…
    OKAY [ 0.016s]
    sending ‘boot’ (4890 KB)…
    OKAY [ 0.671s]
    writing ‘boot’…
    OKAY [ 0.858s]
    sending ‘recovery’ (5234 KB)…
    OKAY [ 0.718s]
    writing ‘recovery’…
    OKAY [ 1.014s]
    sending ‘system’ (438656 KB)…
    OKAY [ 58.344s]
    writing ‘system’…
    FAILED (remote: (FileWriteFailed))
    finished. total time: 84.132s

  3. Michael says:

    thank you so much i cant thank you enough. This worked perfectly first go. Thanks again

  4. Abhi says:

    Thank you, Updated my Nexus 7 to latest 4.2 ,Superb tutorial,great job :)

  5. Hunter says:

    when i got to the fastboot flash bootloader bootloader-grouper-3.34.img because i am on a mac so i typed sudo ./fastboot flash bootloader bootloader-grouper-3.34.img
    then when i typed that it says that i have to enter a password and when i try to enter my password it would let me type anything what do i do?

    • izan says:

      For mac users you don’t have to type “sudo ./fastboot”. You can just type “./fastboot-mac” (without the quotes that is) for all the Terminal commands.

  6. fahd says:

    when i type fastboot flash bootloader bootloader-grouper-3.34.img
    the result is
    sending bootloader
    okey
    writing bootloader
    failed <remote:

    i try to reboot on recovery from my android and it froze
    so i turn it off and on again
    re did the process and same thing happen.

    anyway, my nexus 7 at the moment on bootloop condition (before i try yours).
    is this affecting the error?
    what can i do to make my nexus 7 at the factory state again?

    thanks
    for the video anyway

  7. sha says:

    hi, im using a 3g version nexus 7 and I follow all your step, everything goes smoothly and successfully but my nexus7 now have become a wifi version type of nexus 7. right now having a nexus 7 3g is sucks when I cant even have mobile data connection. even the setting don’t have the setting for mobile data, really need help in this. is it due to the img file I downloaded on your link only for wifi version nexus7?? hope to get a quick reply soon. thanks!

  8. Rithy says:

    hi, im using a 3g version nexus 7 and I follow all your step, everything goes smoothly and successfully but my nexus7 now have become a wifi version type of nexus 7. right now having a nexus 7 3g is sucks when I cant even have mobile data connection. even the setting don’t have the setting for mobile data, really need help in this. is it due to the img file I downloaded on your link only for wifi version nexus7?? hope to get a quick reply soon. thanks!

  9. Rithy says:

    my nexus 7 LTE now dont have service after unroot follow ur video pls help?

  10. Cyclone says:

    How to get back to stock or Unroot to stock on the Nexus 7 (2013)?

    Need to get back to Android 4.3 and not 4.2 on the first Nexus.

    Is there an image on your site?

  11. Damian Marciniak says:

    Can I use this for my NEW NEXUS 7 (2013) 2ND GEN ALSO, to restore to factory state:?
    How to Unroot/Unbrick Nexus 7!
    http://nexus7root.com/nexus-7-unroot/how-to-unrootunbrick-nexus-7/

    Thanks

  12. WebWright says:

    Great! Thanks heaps man! Everything worked perfectly for me. First time around. Up to the last detail.

    With your help I was able to get my sweet Nexus 7 to warranty claim just on the last day of its warranty!!! The whole LCD had gone mad, and half of it wouldn’t respond at all to my touch.

  13. Dean says:

    fastboot flash bootloader bootloader-grouper-3.34.img
    the result is

  14. Riley says:

    it wont let me download the drivers to start unrooting it please help me

  15. Broom says:

    I’m using ubuntu and it all works fine, until I get to this point,
    “sudo ./fastboot-linux -w update image-nakasi-ktu84p.zip”
    The terminal returns with,
    “sudo: ./fastboot-linux: command not found”
    I’ve installed the android development tools, etc, but I’m stuck here now. Any help would be appreciated.
    Thanks

  16. Harry Poulos says:

    I have a Nexus7 2012 32g Wifi version tablet. The bootloader is locked and I have TWRP 2.7.1.1 on it. I can’t remember if USB debugging is on or off. It no longer boots into Android as there is no more Android on the tablet it was wiped off accidently. Hooking into computer does nothing as computer doesn’t recognize the device even after proper drivers were installed in Window 7. It only boots into recovery (TWRP) or it stays on the Google boot screen forever and stays there. I have an OTG USB cable and tried installing Lollipop or KitKat that way through USB flash drive but no way it doesn’t recognize flash drive. I’ve been using Android Unified Toolkit for two years but can’t get it to work any longer with my N7 2012 32G Wifi……Help!

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