To flash a system image:
- Download the appropriate system image for your device below, then unzip it to a safe directory.
- Connect your device to your computer over USB.
- Start the device in fastboot mode with one of the following methods: （ZC: 这里的意思是，下面两个方法，2选1，我当时傻傻的以为需要两个步骤都要做...其实我第一个步骤已经成功就OK了）
- Using the adb tool: With the device powered on, execute:
adb reboot bootloader
- Using a key combo: Turn the device off, then turn it on and immediately hold down the relevant key combination for your device. For example, to put a Nexus 5 ("hammerhead") into fastboot mode, press and hold Volume Up + Volume Down + Power as the device begins booting up.
- Using the adb tool: With the device powered on, execute:
- If necessary, unlock the device‘s bootloader by running:
fastboot oem unlock
The target device will show you a confirmation screen. (This erases all data on the target device.) - Open a terminal and navigate to the unzipped system image directory.
- Execute the
flash-allscript. This script installs the necessary bootloader, baseband firmware(s), and operating system.
