Hardware

And I think the more recent Iphones do actually block certain functionality if a part is replaced by a 3rd party, genuine article nonwithstanding. Having the part identified as genuine, 3rd party or non Apple installed in the settings or something would probably be fine, but that's not what's happening.

I think that is exactly what is happening, but I am very open to new evidence.

but a business profiting from a customer's desire to do good doesn't disqualify the good that a business might do while also profiting.

God no, and I hope that my writing did not come off like that. English is not my native language. No, I think they do an excellent job, I just take what they say when it comes to repair regulations with a grain of salt.