Postflight check found L outboard brake ASSY indicating pin worn out of limits.
航后检查发现左外刹车组件指示销磨损超标。
2
First open your front door and check for a pin tumbler lock on it.
首先打开你的大门，并检查了不倒翁密码锁。
3
You can check if you have any jumper wires plugged into pin 0 and 1. thoses pins are used for serial communication and plugged wires can can prevent the code from being uploaded on the board.