You'd need to be able to replace the SoC, the screen, the cameras, and the biometric sensors to prevent a phone from becoming obsolete within a few years. That'

You'd need to be able to replace the SoC, the screen, the cameras, and the biometric sensors to prevent a phone from becoming obsolete within a few years. That's pretty much all of the expensive parts of the phone, and it would likely cost the same as just buying a new one.