I often wonder how Lore's initial deactivation went down. Juliana described it as "the most painful thing I ever had to do", but we have no specifics.
while I have no canon or semi canon basis for this, I have a headcanon: the homing device. Soong and Juliana activated his homing device to put him in a trance state (Lore and Data seem to be unable to snap out of it themselves, but rather require someone to turn it off manually, as we see in Brothers), and then deactivated him. there was no way of resistance. they spared themselves the pain of hearing their son beg (and/or fight) for his life. Lore just suddenly lost his free will one day, and was lead to the lab by a program he wasn't aware of and can't control (it makes me wonder what it felt like, since Data appeared almost mindless as he made his way to Soong).
the previous activation of his homing device would explain why Lore wasn't confused when he suddenly woke up in Soong's home back in Brothers. he's been through this before. he knew how to recall his memories of his way there - Data did not. that's what made me come up with this headcanon in the first place, I think.













