I don't think it would be possible. Unlike a desktop PC, they are soldered right onto the boards, I don't possibly see how you could remove it and put in a different processor.
The Alcatel uses a Quallcomm which is a pretty standard brand, but the Samsung using a proprietary Samsung chip. I don't even know the dimensions, you'd have to be a pretty good electronics engineer to even try to solder it on, but it seems futile to me. It's most likely impossible.