Can the dialing, contacts and SMS of Android phones be disassembled and replaced?

Ha ha, this question is of course impossible. This comes with the system, even if you get the highest authority, that is, root, you can't, because messages, dialers and contacts are the most basic uses of mobile phones. After obtaining the permission, when you uninstall some system pre-installed software, the root tool will automatically help you hide these important system software. After all, you can hardly download software such as SMS in the application market.