Android - Nexus 刷官方image

https://developers.google.com/android/nexus/images

1. 進入fastboot
1. adb reboot bootloader
2. unlock bootloader
1. fastboot flashing unlock
2. fastboot oem unlock <==舊裝置用這個
3. 燒image
1. 執行flash-all script
4. lock bootloader
1. fastboot flashing lock
2. fastboot oem lock <==舊裝置用這個

Nexus4: occam
目前最新image 為5.1.1 (LMY48T)