Last week, Google launched the Android N Developer Preview program. Users were invited to sign up with the program to be able to test the Android N Preview on certain supported devices, in preparation for the operating system's final release some time in the third quarter.
The launch of Android N Preview was a surprise for most Android fans, as the first look at the operating system was not expected until Google's I/O Conference in May. As such, some users may have been too excited and installed the operating system, choosing between installing Android N Preview though over-the-air updates by signing up in the Android Beta Program or flashing a system image.
Some users may now be starting to get annoyed with the various bugs associated with preview builds, however. Thankfully, Google has made it easy to roll back Android N Preview to Android 6.0 Marshmallow.
The instructions to uninstall Android N Preview from a device are also listed on the same Android Developers page where Google revealed how to install the operating system.
For users that chose to install Android N Preview through the Android Beta Program, they can simply un-enroll themselves from the program by going back to the same page where they signed up. An "Unenroll Device" option will be displayed in the same place where enroll option is located. Afterwards, users will be receiving an over-the-air update that takes down the operating system to the latest version of Android available for the device. This update will require a full reset of the device, which means that all the data on the device will be erased. As such, users are recommended to back up their data before performing this operation.
For users that installed Android N Preview by flashing a system image, they can simply acquire the factory spec system image for their device and manually flash it to bring back their operating system to their preferred one. This option will also erase all user data on the device, so backing up the data is also recommended.