安裝Homebrew（已安裝跳過）
raw.githubusercontent.com域名被污染，如果報錯，host文件添加
199.232.68.133 raw.githubusercontent.com
安裝安卓工具
brew cask install android-platform-tools
解壓fastboot線刷固件，cd到含boot.img、system.img、cache.img等文件的文件夾下
開始刷機
1.設備打開USB選項
【關於設備】連續點擊內核版本 直到彈出已處於開發者模式
【設置】--> 【開發者選項】--> 【USB調試】
2.adb查看設備連接狀態
super@superdeMBP emmc % adb devices
List of devices attached
1af7de5 device
3.adb進入fastboot模式
super@superdeMBP emmc % adb reboot bootloader
4.fastboot查看設備
super@superdeMBP emmc % fastboot devices
1af7de5 fastboot
5.fastboot抹掉舊系統，寫入新系統，依次執行以下命令
抹掉舊版本分區內容
1. fastboot erase boot
2. fastboot erase system
3. fastboot erase userdata
4. fastboot erase recovery
刷入對應分區內容
1. fastboot flash boot boot.img
2. fastboot flash system system.img
3. fastboot flash userdata userdata.img
4. fastboot flash recovery recovery.img
重啟搞定
fastboot reboot
super@superdeMBP emmc % fastboot erase boot
Erasing 'boot' OKAY [ 0.004s]
Finished. Total time: 0.012s
super@superdeMBP emmc % fastboot erase system
Erasing 'system' OKAY [ 0.004s]
Finished. Total time: 0.011s
super@superdeMBP emmc % fastboot erase userdata
Erasing 'userdata' OKAY [ 0.005s]
Finished. Total time: 0.013s
super@superdeMBP emmc % fastboot erase recovery
Erasing 'recovery' OKAY [ 0.004s]
Finished. Total time: 0.013s
super@superdeMBP emmc % fastboot flash boot boot.img
Sending 'boot' (6388 KB) OKAY [ 0.207s]
Writing 'boot' OKAY [ 0.506s]
Finished. Total time: 0.724s
super@superdeMBP emmc % fastboot flash system system.img
Sending 'system' (511318 KB) ERROR: usb_write failed with status e00002eb // 此處如果有類似報錯，可以報錯后等待3min左右的寫入時間（我這邊雖然報錯，但實際上正在Writing），再執行下一步
FAILED (Write to device failed in SendBuffer() (No such file or directory))
fastboot: error: Command failed
super@superdeMBP emmc % fastboot flash userdata userdata.img
Sending 'userdata' (35889 KB) OKAY [ 1.198s]
Writing 'userdata' OKAY [ 2.083s]
Finished. Total time: 3.300s
super@superdeMBP emmc % fastboot flash recovery recovery.img
Sending 'recovery' (6778 KB) OKAY [ 0.229s]
Writing 'recovery' OKAY [ 0.331s]
Finished. Total time: 0.572s
super@superdeMBP emmc % fastboot reboot
Rebooting
6.Okay!