Most mistakes will lead to a few common symptoms. We will focus on the following symptoms:
The web server on the BeagleBone is inaccessible
SSH no longer works; you will either get an error about no such host or invalid password
SSH appears to work, but you are immediately disconnected
Nothing happens when you connect power to the board
The goal of this chapter is to identify problems that can be repaired with the help of software. The board is designed in such a way that it can be recovered after almost any software fault. We have intentionally not gone through the causes. For beginners, it is often very hard to identify the specific steps that lead to the problem.