https://www.androidsage.com/2017/03/21/install-android-7-1-2-nougat-beta-2-npg47i-build-update-for-google-pixel-and-nexus-download-ota-and-factory-image/
Install Android 7.1.2 Nougat Beta 2 NPG47I build update for Google Pixel and Nexus [Download OTA and Factory image]