When you receive your package and open it up, you will see a cylindrical black foam with a red tape placed in between the mirror mount of your Unistellar telescope and the onboard computer. This is to prevent any damage that could occur during shipment.
This cylindrical black foam has to be removed but kept in case of return. This piece of foam is tough and can be hard to remove. The easiest way to remove it is by pushing it out from the back and it will slide on the side.