No. Loomo cannot move up or down stairs, so please lift up Loomo using its handle bar and carry it up or down the stairs.
You can watch the tutorial video: Moving Loomo for step by step details.
WARNING:
Because of Loomo's self-balancing mechanism, incorrectly lifting it by its main frame or fenders may cause its wheels to spin haphazardly, which could pose a risk to you and others in the vicinity.