How to Hard Reset a Bricked Nexus 7 With Your PC

Maybe you’ve been rooting your Nexus 7 and putting ROMs on it and messed up, or maybe your Nexus 7 just up and died randomly (happens sometimes). Either way if you can’t get it to turn on, you might think you need to go through the colossal hassle of sending it in for warranty service. Well, think again. Here is a way you can restore the Nexus 7 back to an out of box state without the hassle of shipping the darn thing.

1. Setup ADB drivers by going here (link opens in new window). Once done, come back here to continue.

2. Now, download the stock image files from Google here (all the way down at the bottom click the download link for the 4.1.1 version of the Nexus 7) and save them inside the C:/android-sdk/platform-tools/ folder on your computer (they need to be in the same folder as the fastboot file).

3. Extract the archive you downloaded from Google.

4. Take all of the files from inside the new extracted folder and copy them into the C:/android-sdk/platform-tools/ folder.

5. Power Off the Nexus and turn it back on by holding down Volume Down and Power at the same time until the bootloader screen comes up.

6. Now, plug your device in via USB cable.

7. Open the Platform Tools folder of the SDK, hold down shift and right-click in any blank area of the folder. Select the option to Open a Command Prompt Here.

8. At the command prompt, type the following while hitting enter at the end of each line:

fastboot erase boot

fastboot erase cache

fastboot erase recovery

fastboot erase system

fastboot erase userdata

9. After that is done, type fastboot oem unlock and hit Enter.

10. After that is done, type fastboot flash bootloader bootloader-grouper-3.34.img and hit Enter.

11. Then type fastboot reboot-bootloader and hit Enter.

12. After that is done, type fastboot -w update image-nakasi-jro03d.zip then hit Enter.

13. When the device reboots, power off the Nexus and turn it back on by holding down Volume Down and Power at the same time until the bootloader screen comes up.

14. After that is done, type fastboot oem lock at the command line and hit Enter.

15. Type fastboot reboot at the command line and then hit Enter.

Did it work for you?

 

  • xsaechao

    uh ok…IT DOES NOT TURN ON

    • Then you did something wrong. Noticing that this was 6 months ago (sorry for that) going to assume you fixed it.

  • stigwannabe

    PLEASE HELP
    Hey guys i have a 3g 32 gig 2012 version of the nexus 7 i just bought , unrooted completely stock.

    I am stuck at step no. 12 when i boot the factory image cmd say that my system requires the basement version 1231_0.10.0_1021
    instead of 123108_0409. does anyone know where i can get the correct image file? or what it means ? I also don’t see any instructions specific for the 3G model because i don’t know if i have to do anything with the “radio tilapia'” zip file

    when it arrived the battery was completely flat so i plugged it to the charger and fired it up. all i got was the X logo (bootlooped i think) I ve tried all the combinations of button pressing and resets but but nothing works not even recovery mode ( all i get is the google logo). the only way to turn it off is with the bootloader . ive also tried nexus root toolkit, it keeps asking me to change ADB settings on a tablet i cant booy

  • Francis Kingu

    Hey guys i have a 3g 32 gig 2012 version of the nexus 7 i just bought , unrooted completely stock.

    I am stuck at step no. 12 when i boot the factory image cmd say that my system requires the basement version 1231_0.10.0_1021
    instead of 123108_0409. does anyone know where i can get the correct image file? or what it means ? I also don’t see any instructions specific for the 3G model because i don’t know if i have to do anything with the “radio tilapia'” zip file

    when it arrived the battery was completely flat so i plugged it to the charger and fired it up. all i got was the X logo (bootlooped ) I ve tried all the combinations of button pressing and resets but but nothing works not even recovery mode ( all i get is the google logo). the only way to turn it off is with the bootloader . ive also tried nexus root toolkit, it keeps asking me to change ADB settings on a tablet i cant boot

    • At the link in step 2 where you go to Google to get the image. There is a section that says it’s for …Nexus 7 (Mobile). That’s the section you need. Grab the latest version from there (mobile meaning mobile data, in your case, the 3G version).
      Let me know if that works!

  • Tanos

    I would like to say thank you. This worked like a charm. The only thing I would like to point out is when you get your stock image file make sure you enter the version you have downloaded and not exactly what was posted in the article. IE just swap the version in the tutorial for what ever you have for your device.
    I changed the “bootloader-grouper-3.34.img” to what was in my file and the
    “fastboot -w update image-nakasi-jro03d.zip” to the last 5 digits before the .zip to what I had.

    Thanks again

  • Richard Marens

    David, what’s the expected duration for “erasing ‘boot'” in Step 8? Mine’s past the half hour mark…

    • Takes a while… Did it finally work?

      • Richard Marens

        Left it on to do its thing overnight… no success. On removing the USB, fastboot gave me a FAILED <status read failed > error. I changed USB ports and am trying again (long shot, I know).

  • Jerry

    So I still have my nexus 7 2012 and had it in boot loop…… thanks David for helping out if your still out there props to you

    • I’m still out here 🙂 Glad I could help!

  • Robin Hertz

    Need help. I’ve got a brand-new brick from my grouper charged with autodroid 1.2 and latest kangaroo v.2.

    I had installed kangaroo over Autodroid 1.2 and was testing the
    fast-charge function while connected through a Y-OTG to a D-Link USB hub
    with a stick, easycam and DAC in it. All this time it was playing music
    through DAC. The hub was powered from the tablet as well.

    The tablet was draining continuously. The amp.meter showed ~0.75-0.90A
    supplying from the wall, but if I was opening the battery settings, it
    was falling to ~0.60A. Strange behaviour, isn’t it?

    While testing in that environment, the tablet was warm in the left side
    (I guess the battery is there along with it’s controller).

    At a moment music stopped playing, and the battery is off. It won’t
    charge by OTG neither by normal cable – amp.meter shows 0A going to
    tablet. Of course, ADB doesn’t see it. Any ideas?

    • Have you tried booting it into fastest and following this tutorial?

      • Robin Hertz

        No, I didn’t. Remember? the tablet was completely dead – it wouldn’t show the google lock either!
        On the other hand, I was able to connect another battery and flash it to v.5.1.1. This perhaps is what confused you in my post.
        And, yes – I’m able now to boot it into fastboot mode without issues, but I don’t need to unbrick it OS, just for flashing other mods like Cyanogen or Autodroid. )
        Thanks anyway.

    • Robin Hertz

      Forget, guys! It finally came back to life! After a couple of hours of charging, pushing the buttons, even reflashing to 5.1.1 (have another N7 with other issues).