No, Android (or rather, AOSP), is fully open source. Most device makers fork AOSP and distribute binaries containing their modifications. These always come wit

No, Android (or rather, AOSP), is fully open source. Most device makers fork AOSP and distribute binaries containing their modifications. These always come with source code for the GPL portions, and occasionally also the portions licensed under permissive licenses such as Apache and BSD. For instance, OnePlus and Sony publish these Android sources: https://github.com/OnePlusOSS https://github.com/OnePlusOSS https://github.com/sonyxperiadev?tab=repositories https://github.com/sonyxperiadev?tab=repositories