If you push Pepper's chest button and nothing happens, don't panic. In almost every case an unresponsive Pepper is caused by one of two things: a depleted battery or the emergency stop button. Both can be checked easily.

Error 713: I can’t move anymore. I detected an error on n of my vital devices: [list n devices].

NAO does not finish booting up.

In rare cases, after a NAOqi update or factory reset, NAO will get “stuck” during its boot process and will never finish booting up. If you have been waiting (and waiting, and waiting) for NAO to finish booting up, there is probably a solution. This problem can usually be identified by the ear LEDs or the chest button LED.

There are two common reasons a NAO will not stand up. One of them can be fixed by the customer with a computer and the other requires shipping the NAO for service.

Rather than try to distinguish between the two cases, it is easier to simply attempt the intervention and test the result. Your NAO will need to be connected to a WIFI network or hardwired to your computer, and you will need to SSH into the NAO. We use the program PuTTY for this purpose, but you can also use a Command Prompt.