If your Nexus 7 tablet is unresponsive, but it boots in Fastboot Mode, then you can easily fix / unbrick it using an Official Android Factory Image.
Using this guide will wipe every single file from your Google Nexus 7 tablet which is why you should use it only as a last resort. In case your tablet is not bricked, then you can also use this guide to restore the Nexus 7 to a stock Android OS.
Android Factory Image when flashed restores devices such as Nexus 4, 5, 7 and 10 and older Nexus devices to 100% Stock OS, while it removing all data. This is a full copy of an already installed system, which is why everything gets replaced in the process. Also, you can choose to use a newer Factory Image and flash it over an older build, this can be considered as an alternative to an update.
Before starting the Unbrick process you should read the guidelines below:
- use this tutorial with any type of Google Nexus 7 device.
- do not attempt to flash an Android Factory Image on any other device.
- download and install the Google USB Driver for your computer.
- your device should be on an unlocked bootloader.
- enable USB Debugging from Developer Options.
- check the Nexus 7 battery charge level and make sure that it is over 50%, so that the tablet won't switch off in the middle of the installation process.
- this guide will remove all data from your tablet including the files stored on its internal sdcard.
- note that we cannot be blamed in case the new ROM doesn't boot in normal mode nor in case some other thing goes wrong.
- read all the steps listed in the tutorial and you should be able to complete the guide in under ten minutes.
If your device isn't bricked but you only with to restore it to stock Android, then you might want to backup some apps, SMS or similar data. You can use Helium for Android.
Also, if you want to backup Contacts data, then you can learn with this post here.
Now that you know all of the above you can continue to the next part of this post and start learning how to successfully unbrick / restore your Nexus 7 tablet. If you cannot complete the guide, then you can always to ask for more help in comments.
How to Unbrick any Nexus 7 with Android Factory Image from Google:
- Download the latest Android Factory Image file for your device from the links below:
- Nexus 7 2013 Wi-Fi here.
- Nexus 7 2013 Mobile here.
- old Nexus 7 Wi-Fi here.
- old Nexus 7 mobile here.
> note that you can download any Android 4.3 / 4.4 version and flash it on your tablet.
- After you download the corresponding file for your tablet you will need to extract the archived contents.
- save the file in a folder on your computer.
- Power off the Nexus 7 completely.
- Now boot it in Fastboot Mode.
- if you can't, then you can learn by reading this post.
- Connect your PC to your tablet device using the USB data cable.
- Open the folder created in step 2.
- If you use Windows PC then you should double-click the "flash-all.bat" file. For MAC or LINUX launch the "flash-all.sh" file.
- Wait for the Factory Image to install without pressing any buttons.
- When the installation is complete you should press Volume UP until the START text in Fastboot Mode changes to Recovery mode, then press Power to boot Recovery.
- Select 'wipe data/ factory reset' and confirm the process.
- After the Factory Reset is complete you should select 'reboot system now' and wait until the Nexus 7 boots in stock Android.
- Unplug the tablet from computer when the first boot process is complete.
Use your Google Account info to gain control over your tablet once again and then start customizing and installing all your favorite applications.
In case you cannot complete this guide, then you should ask for more help in comments and we will come up with solutions for your problems.