Use this tutorial if you don't want to wait until Google pushes the official Android 5.1 Lollipop OTA Update for 2013 Nexus 7 tablet in your region.

Check all the info in this post if you want to learn how to manually flash the update using the adb sideload.

Before starting the installation process you should check the guidelines below:

  • use this post only for the 2013 Google Nexus 7 Wi-Fi tablet.
    - do not attempt to update any other devices with the files that you will find in this post.
  • the updating process works only in case your tablet already sports the official Android 5.0.2 LRX22G Lollipop software.
    - you can't install the LMY47O Android 5.1 OTA Update over an older Android firmware.
    - if you are not running Android 5.0.2 LRX22G on your device, then the update is not going to work.
    - check the guide here first if you're running Android 5.0.1 on your tablet.
  • save all the data that is stored on your device.
  • enable USB Debugging for your tablet from Developer Options.
    - if Developer Options isn't listed under Settings menu, then you should un-hide it first.
    - go to Settings> About Device and tap 7 times on the "build number" section.
    - return to Settings, open Developer Options, enable it and scroll down to UBS Debugging to enable it too.
  • this guide doesn't work in case you are running a custom ROM on your tablet.
  • for this update process to work you will need to run 100% stock Android on your device.
  • read the whole guide and do not skip any steps.
  • do not blame us if you brick the tablet nor in case you end up losing any data files.
    - check the battery charge level of your device before getting to the installation part of this post.
    - make sure that there is at least 50% left before the device powers down.
  • use this tutorial only in case you are an advanced Android user.

Now that you know all of the above you can continue to the next step.

How to flash Android 5.1 LMY47O for 2013 Nexus 7 Wi-Fi:

The first thing that you need to do is to setup the Android SDK on your computer. Here's how to do it:

  • download Android SDK from here.
  • create a new SDK directory under the C partition.
    - this will allow you to flash the new update much more easier.
  • extract the SDK contents and then launch the Android SDK Manager tool.
    - confirm the download and installation of all drivers and packages.
  • check the SDK folder and make sure that there is a 'platform-tools' in it, that's the folder where you will have to place the update file.
  • now you need to download the Google USB Drivers from here.
    - in case your device is not detected by your PC then you will have to re-install / update the installed USB drivers.

Now you can begin the installation of Android 5.1 OTA Update manually using the ADB Sideload command:

  1. Download the Android 5.1 LMY47O Lollipop update file from here.
  2. After you've completed the download you should rename the file to 'update.zip'.
    - don't extract the file contents.
    - you should rename the update file in order to be able to install it easier.
  3. Place the 'update.zip' file in the 'platform-tools' folder under SDK directory.
  4. Power down the Nexus 7.
  5. Now boot it in Recovery Mode.
  6. Select the 'apply the update from adb' option from the Recovery Mode menu.
  7. Launch a command prompt in the 'platform-tools' folder created at step 2.
    - it can be done by pressing and holding SHIFT key, then right-clicking on the folder's white space and selecting "open command window here".
  8. Now you have to connect the Nexus 7 to your PC via USB Cable.
  9. Check to see if the tablet has been detected by your computer:
    - enter adb devices
    - if there is a device listed as attached, then you can continue to the next step.
    - if no devices are attached, then you will have to re-install or update the Google USB Drivers.
  10. Start Android 5.1 Lollipop OTA Update install process using the following command line:
    adb sideload update.zip
  11. Confirm the installation process of this new ROM and do not press any buttons until the update is complete.
  12. Reboot the tablet in normal mode after all files are flashed with success.

After the new ROM has been installed you should expect its first boot process to take somewhere around 15 minutes. In case the first boot takes more than 30 minutes being stuck at the boot animation screen, or the device enters into a boot loop, then you will have to repeat the whole guide more than once.

Use the comments field below in order to ask for extra help in case you need it.

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