So you’ve read about android O and wants to use it? Well developer preview is only for Google’s brand devices Nexus and Pixel (All Variant). Today I will guide you with “How to Install Android O Preview.

Install Android O

How to Install Android O Developer Preview

Let’s move to how you can flash the first Developer Preview of Android O on your Pixel or Nexus device.

Setting up ADB and Fastboot

Windows Users : Download and install the 15-second ADB/Fastboot installer by following the instructions mentioned. Also, make sure to download and install the ADB drivers
from here.

Unlock the bootloader

Step 1: Download the Android O factory image for your Nexus or Pixel from here.

(Optional) If the bootloader of your Nexus device is not unlocked, head over to Settings -> About Phone and tap on Build Number 7 times to enable the hidden Developer Options menu. Head back to Settings -> Developer Options and enable the OEM Unlocking option.

Step 2: On the desktop of your PC, extract the contents of the Android O factory image file inside a new folder called ”android”. It is extremely important that all the contents of the factory image are present inside it. Only extract contents from the zip file that you downloaded. There is no need to extract contents of various other zip files present inside the archive.

Step 3: If you are on Windows, Shift + right click on the “android” folder and select the ‘Open command window here’ option. On a Mac, open up Terminal, type “cd”, drag ‘n’ drop the “android” folder inside the window, and then press enter.

Step 4: Boot your Nexus or Pixel device into bootloader mode using the key combination mentioned below:

Nexus 5X: Volume down + Power button
Nexus 6P: Volume down + Power button
Pixel: Volume Down + Power button

Step 5: Confirm that your device is being detected by your PC by running the following command:

fastboot devices

If detected, this command should return the Android ID of your device. If not, restart your Android device and PC. If that fails as well, reinstall the ADB drivers.

Step 6 (Optional): If the bootloader of your Nexus or Pixel device is not unlocked, run the following command :

fastboot oem unlock

You will have to confirm your selection by pressing the Volume Up button on your device followed by the Power button. Once done, your device should reboot. If not, reboot the handset manually. Once it boots back into Android, skip the setup process, switch it off, put it into bootloader mode and connect it to your PC.

Step 7: Now, run the below command to flash the Nougat factory image on your Nexus device.

The script will automatically flash all the full Android O Nougat factory image on your Nexus or Pixel device. Once done, your Android device should automatically reboot into the OS. If not, manually reboot your device by long pressing the power button. The first boot can be lengthy but there is no need to panic. In case, your device enters into a bootloop, repeat the steps above.

To return to Nougat, you need to follow the same steps mentioned above but instead of the Android O factory image, you will have to use Nougat factory image. The steps to flash Nougat factory image on a Pixel or Nexus device can be found here.


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