

A rooted phone could not, but anyone with a bottle of acid and a microscope could. Or as I’ve said, a nice optics setup and a high quality projector.
My point being that trusting the camera chip does not help much. But, of course, it would block the easiest software attacks like we have seen so far.



As you mention, use a small fan filter to draw away the fumes. If you can smell the flux vapors, you don’t have enough ventilation (although most people won’t care). Unless you do long sessions I rarely see people wearing masks or gloves but if you are confortable doing so then yes that’s a good idea.
One thing is glasses. Especially when inexperienced, it can happen that you can fling around small solder blobs by accident. You don’t want that in your eyes.
I would suggest not avoiding flux. It’s basically easy mode compared to without. Even if you use flux core solder.