A couple things before the general booing commences.
This particular law requires companies to make parts and instructions available to people. It is not simply ‘let me do my thing without penalty’. (I could be wrong on this - won’t pretend that I’m that familiar with the proposed law - do correct me).
And, I think more importantly, allowing this would make their current security (and pretty much anyone elses) setup very tricky. This has come up before with the ‘I had my screen fixed and now my phone won’t boot’ story from about a year ago. If anyone can go in and replace parts like the fingerprint reader and other chips, how can the system consider them safe. Given that if secret-evil-Russian agents, or your favorite three-letter-agency were to do the same thing, one would expect the phone to let you know it has been tampered with.
