Developer Preview Archive

The Android M Preview SDK includes development tools, Android system files, and library files to help you test your app and the new APIs coming in the next release of the platform. This document describes how to get the downloadable components of the preview for testing your app.

Developer Preview 1 SDK

The Preview SDK is available for download through the Android SDK Manager. For more information on downloading and configuring the Preview SDK, see Set Up the Preview SDK.

Developer Documentation

The developer documentation download package provides detailed API reference information and an API difference report for the preview.

Description Download / Checksums
Android M Preview 1
Developer Docs
MD5: b65201b0d35416f5a1b7a071b52854a7
SHA-1: d47e856aa65e06897e6edd902ad8d2b1f05ac3ec

Hardware System Images

These system images allow you to install a preview version of the platform on a physical device for testing. By configuring a device with one of these images, you can install and test your app to see how it performs on the next version of the platform. The process of installing a system image on a device removes all data from the device, so you should backup your data before installing a system image.

Warning: The following Android system images are previews and are subject to change. Your use of these system images is governed by the Android SDK Preview License Agreement. The Android preview system images are not stable releases, and may contain errors and defects that can result in damage to your computer systems, devices, and data. The preview Android system images are not subject to the same testing as the factory OS and can cause your phone and installed services and applications to stop working.

Device Download / Checksums
Nexus 5 (GSM/LTE)
MD5: 9e2631b06c6525e401ceaae3677ff320
SHA-1: 55d76d3a379b18f3363f28d8a462c236ab96fc36
Nexus 6
MD5: 307cbf9dab0a38df4ab2639d02be12aa
SHA-1: c1d6506a74094bdb2f4b8677c7fe4967334f9ea8
Nexus 9
MD5: fae40377fd999d2b09128665c915264d
SHA-1: 7ab05f96093b2cb370b226f65931202714cbc2ca
Nexus Player
MD5: 815902141a85cc65e7725f005cad31d5
SHA-1: 2406ba0598dea1e69110497ac0bc8e16789bc8fb

Install an Image to a Device

In order to use a device image for testing, you must install it on a compatible device. Follow the instructions below to install a system image:

  1. Download and uncompress one of the system image packages listed here.
  2. Backup any data you want to preserve from the device.
  3. Follow the instructions at to flash the image onto your device.

Note: Once you have flashed a development device the preview system image, it is upgraded automatically with the next preview release through over-the-air (OTA) updates.

Revert a Device to Factory Specifications

If you want to uninstall the preview and revert the device to factory specifications, go to and download the image you want to flash to for your device. Follow the instructions on that page to flash the image to your device.