Configure USB flashing port

Hello everybody,

At the start I would like to refer that I am a rookie with Jetson TX2.
I just bought a Jetson Tx2 developer Kit that was already pre-flashed.
The JetPack is 4.3 (L4T 32.3.1)
When I close the Jetson it appears me in the terminal the following message:

[FAILED] [Failed to start Configure USB flashing port for device mode] (see the image)

Later I want to conect an external camera in USB 3 port .Whould be a problem because for now the port is working properly.

Thanks for the consideration. If there is a solution for this error I would be glad to hear from you.

Thanks for the consideration,
George