The Android N Preview 3 Factory Image files are now live for all the Google Nexus 9 Wi-Fi tablets. Check the info listed in this post if you want to learn how to successfully flash such files on your device.

Android N Preview 3 build is a whole lot more stable than the previous Developer Preview builds. If you are looking to find out more about the new features and elements that Google will launch with Android N, then the Preview 3 build should satisfy your curiosity.

Installing a 'factory image' on a Nexus device will remove all the data from the tablet in the process, which is why this post can be used as a "hard factory reset" guide in case you want to get rid of an old custom ROM or you're simply looking to refresh the device.

Check the following guidelines before starting the installation process:

  • this guide works only with the Google Nexus 9 Wi-Fi devices.
    - don't try to update any other different devices with the files that you will find in this post.
  • make sure to enable the USB Debugging from Developer Options on your tablet.
    - the Developer Options might be hidden which is why you will have to enable it first: go to Settings> About Tablet and tap 7 times on the Build Number section.
    - go back to Settings, scroll down and you will find Developer Options.
    - open it and then find USB Debugging to enable it, too.
  • if your tablet was rooted you should know that root access won't survive the factory image installation.
  • you will lose all the data that is stored on your device.
    - you can't flash a factory image without losing data, as this file is a full copy of a newly installed OS.
  • use the tutorial only if you are an advanced user, we cannot be blamed in case you brick the device nor in case you lose any important data in the process.
  • read the entire post first and do not skip any steps.
  • check the battery charge level of your tablet before starting the flashing process, as it needs to be over 50% to prevent the device from powering off during the Android N Preview 3 first boot process.

Since you've read all of the above you can get to the next part of this post.

How to install Android N Preview 3 Factory Image for Google Nexus 9 Wi-Fi:

You need to setup Android SDK for your computer first. This Android SDK will install all the needed files that your computer needs in order to be able to recognize the tablet when you connect them.

  • download Android SDK from here.
  • install the Android SDK on your computer.
  • go to SDK installation directory.
  • find the SDK Manager exe and launch it on your device.
  • use the SDK Manager to download and install the SDK packages and usb drivers.
  • return to SDK installation directory and look for the platform-tools folder.
    - leave the folder opened as that's where you will need to extract the Android N preview factory image installation files.
  • install the Google USB Drivers here in case you can't connect the tablet o PC.

Install Android N Preview 3 for Nexus 9 Wi-Fi:

  1. Download the Android N Preview Factory Image archive from here.
  2. When the download is complete you should extract the files and save them on your PC.
  3. Move the extracted files to platform-tools folder.
    - that's the folder obtained after setting up the Android SDK on your PC.
  4. Power off the tablet.
  5. Boot your Nexus 9 Wi-Fi in Fastboot / Bootloader Mode.
  6. Connect the tablet to PC via USB cable.
  7. Get to platform-tools folder.
  8. Start Android N Preview 3 Factory Image installation by launching the flash-all.bat script.
    - confirm the flashing process and don't press any buttons until the installation is done.
  9. When the flashing process is done you will see the confirmation shown in the Command Prompt Window.
  10. Reboot the tablet and then unplug it from your PC.
  11. Use your default Google account in order to regain complete control over the device.

I hope that you've managed to complete the Android N Preview 3 Factory Image installation. The first boot process of this new ROM is going to take at least 20 minutes before it completes.

In case the first boot process fails to complete or in case your device enters in a boot loop, then you should attempt to repeat the whole tutorial more than once. If you do repeat installation you need to try and make sure that your tablet meets all requirements and that you won't be skipping any steps.

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