How to flash Android 5.1 Factory images to Nexus devices

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Google has released yet another update for their latest iteration of the Android Mobile OS. Dubbed Lollipop 5.1 this new OS is available only to the Nexus devices as of now. If you have one of the select devices that Google has decided to rollout 5.1 to, then hop down below for a detailed over view on how you can manually update to the latest goodness from the kitchens of Google. Android 5.1 arrives with mainly a few setting improvements. While not big on adding new features this .1 incremental update for Lollipop looks to squash the bugs that have been plaguing the most recent release of the Android OS.


 Change log:

  • Bug fixes
  • Native dual sim support
  • Device Protection™
  • High Definition(HD voice) Voice on compatible devices
  • Quick Settings can now control WiFi and Bluetooth without having to switch into the extended settings menu

Pre Requisites

  • ADB should be installed. You can find detailed instructions here.
  • For MAC users, you cna follow this link here.….php?t=1917237
    *Note: MAC users will have to write “./” before every command in this thread. For example : “./fastboot flash recovery recovery.img”
  • Linux users should know their stuff!!
  • Your bootloader must be unlocked. You can use this tool here.


Nexus 5 Android 5.1 factory image link

Nexus 7 (2012 WiFi) Android 5.1 factory image link

Nexus 10 Android 5.1 factory image link

Step 1

Power off your phone. Boot it in fastboot by pressing and holding Power Button + Volume Down at the same time.

Step 2

Connect your phone to your PC through your USB cable.

Step 3

On your PC extract the contents of the boot image zip file

Step 4

Execute the flash-all.bat script (for Windows) or MAC and LINUX) in the folder where you extracted the factory images.
For MAC: You’ll have to edit the, and add “./” before every fastboot command.

Step 5

Wait for everything to flash.

Step 6

After everything finished, select “Recovery” using the volume buttons.

Step 7

When a small dead Android appears, press Power Button + Volume UP.

Step 8

Select “Wipe data/factory data reset”

Step 9

Reboot. You should now be running the latest version of Android 5.1 on your Nexus  phone or tablet.

Congratulations! You now have the latest and greatest in software in the house of Android! If you have any questions about the installation procedure or any other query, feel free to drop a comment down below.

Also we will be updating the downloads section with newer device images as they come from Google so keep your eyes peeled to Android Rooting for the latest things in the world of Android


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