The source code for Android is open-resource: it can be formulated in personal by Google, Together with the source code released publicly whenever a new version of Android is introduced. Google publishes the vast majority of code (like network and telephony stacks) under the non-copyleft Apache License Edition 2.0. https://jaidensrkbm.blogocial.com/How-Premium-Scannable-Fake-ID-can-Save-You-Time-Stress-and-Money--46605714