The display screen is attached by the factory hinge assembly, but for safe shipping it will arrive unclipped/disconnected from the hinge mount to help prevent damage in transit. Reinstallation is quick and simply clips back into place with no special tools required. Password/login credentials are unknown. Unit reaches the settings/login prompt, however technician, operator, and supervisor access has not been tested and credentials are not available. Software/configuration update or reset may be recommended by the buyer. Basic weighing functions have been tested and are working properly.