Rooted Android OTA 升级OTA 镜像下载Full OTA Images for Nexus and Pixel Devices | Google Play services | Google DevelopersThis page contains full OTA update packages that allow you to restore your Nexus or Pixel device's original factory firmware. You will find these files useful if you have experienced a failure to take an OTA. This has the same effect as flashing the corresponding factory image, but without the need to wipe the device or unlock the bootloader.https://developers.google.com/android/ota升级进入 Recovery 模式按住电源键并且按一下音量加，选择 Apply update from ADB 后运行下面命令完成后选择 Reboot the system nowRoot again下载最新的 Nexus Root Toolkit国内镜像：NRT_v2.1.9.sfx.exe选择系统版本时可能找不到对应的，选择最新的试一下即可。
