What I was saying about boneh, lkulei alma to make a new keli is boneh deoraysah, and the creation of a circut is like a new keli.
But I was mistaken what I wrote to you previously. The Chazon ish continues on saying that besides for being a new keli , it is normally connected to the ground.
So a cell phone which is not connected to the ground, you would just have to say it is boneh because of a new keli, besides for maavir and mesaken mana.