Android 6.0  Marshmallow
How to update Nexus 5, 6, 9 and Nexus Player to Android M (MPA44I) Developer Preview 3 via factory imageRedmond Pie

Google has just rolled out the updated version of Android 6.0 Developer Preview 3 factory images for Nexus 5, Nexus 6, Nexus 9 and Nexus Player with system level tweaks and bug-fixes for all known issues discovered after the final preview release of Android M (aka Marshmallow).

The new Android M update with build number MPA44I can now be downloaded manually, using the direct download links below:

IBTimes UK reminds readers that it will not be held liable for any damage to device during or after firmware installation. Users are advised to proceed at their own risk.

Pre-requisites

  • The instructions given in this guide are meant for the Nexus 5, Nexus 6, Nexus 9 and Nexus Player only. Verify device model number by navigating to Settings > About Phone as installing this firmware on incorrect variants might brick the device.
  • Ensure the phone has at least 80% battery charge to prevent unexpected device shutdown (due to battery drain) while installing the ROM.
  • Back up data and settings using a recommended custom recovery tool, like ClockworkMod (CWM) or TWRP, as it creates a complete image of the existing phone setup. In Recovery, choose Backup and Restore and tap Backup.
  • Verify correct USB drivers for the device are installed on the computer.
  • Enable USB Debugging mode via Settings > Developer Options Note: If Developer Options is not visible then you need to enable it as follows:
  • Go to Settings > About Phone
  • Scroll down to the bottom and select Build Number
  • Then tap build number seven times to unlock the Developer Options under Settings and then enable USB Debugging mode
  • Ensure that the device is rooted with CWM or TWRP recovery installed and its bootloader is unlocked.

Steps to update Nexus 5, Nexus 6, Nexus 9 and Nexus Player to Android 6.0 Marshmallow build MPA44I via Factory Image

Step 1 - Download the Android 6.0 Factory Image for your Nexus device on the computer.

Step 2 – Connect the Nexus device to your computer via USB cable.

Step 3 - Ensure Fastboot is configured and properly installed on your computer. (click to see guide).

Step 4 – Power off your phone and boot it into Fastboot/Bootloader mode.

Step 5 – To boot Nexus device into Fastboot mode: turn on the phone while pressing and holding the Volume Up, Volume Down and Power buttons until the Fastboot menu and START icon appear on the screen.

Step 6 - If necessary, unlock the device's bootloader by running the following command: fastboot oem unlock

Step 7 - Then extract the downloaded file to a desired location on your computer (preferably desktop). Go to the firmware folder and then copy/paste all the files to the Fastboot directory.

Step 8 - Using factory image files in your Fastboot directory, run the following commands depending on the OS installed on computer:

  • On Windows: Run the file "flash-all.bat".
  • On Mac: Run the file "flash-all.sh" using Terminal.
  • On Linux: Run the file "flash-all.sh".

Step 9 –That is all you need to do for flashing the stock factory image on your Nexus phone. Wait for the installation process to complete or follow the on-screen instructions on your phone if in case you are prompted to unlock the bootloader.

Step 10 - Once the installation completes, your phone will reboot and it may take about five minutes for the first boot to complete. So, please do not interrupt the process.

Your Nexus device is now running the official Android 6.0 Marshmallow update with build MPA44I via stock factory image from Google. Go to Settings > About phone to verify the firmware installed.

[Source: Android Developers]