i just got unleash x and i was wondering if like i take my box to a friends house
how do i get the modded dashbaord to start without having my internet cable plugged in

You need to clarify your question. What do you mean by you just got UnleashX? Did you install it to your xbox as a replacment dashboard? If so, then all you need to do is turn your xbox on to get it to start. You need to elaborate more about your problem in order to receive proper help.

i just sftmodded using mechassault and when i turn it on without a game or internet cable in it goes to ms dash